Crash on import with CGI wrapped by PHP--unhappy with .matplotlib directory?

_Jonathan_Hayward_h1 · August 1, 2008, 3:25pm

I have a PHP script which authenticates a user and I am trying to get the PHP script to wrap a Python script using matplotlib.

As
it is, the script mostly works when invoked from the command line or as
its own CGI script. When I call it from a PHP script, it doesn’t
produce output, and testing found that when I call a Python script from
a PHP script, output works before but not after “import matplotlib”: if
the PHP script calls a script of:

#!/usr/bin/python
print “Before import matplotlib.”
import matplotlib;
print “After import matplotlib.”

the first print statement succeeds but the second one fails; the server log shows a crash of:

Before import matplotlib.Traceback (most recent call last):
File “/home/jhayward/bintmp/test.py”, line 5, in

import matplotlib;

File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 639, in
rcParams = rc_params()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 562, in rc_params

fname = matplotlib_fname()

File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 513, in matplotlib_fname
fname = os.path.join(get_configdir(), ‘matplotlibrc’)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 207, in wrapper

ret = func(*args, **kwargs)

File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 403, in _get_configdir

raise RuntimeError(“Failed to create %s/.matplotlib; consider setting
MPLCONFIGDIR to a writable directory for matplotlib configuration
data”%h)

RuntimeError: Failed to create /root/.matplotlib; consider setting
MPLCONFIGDIR to a writable directory for matplotlib configuration data

I think this error is somewhat misleading; it persisted after I ran a “chmod -R 1777 /root/.matplotlib”.

What is the proper way to adjust things so matplotlib will be happy with its .matplotlib directory?

···

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,
** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?
++ You can now get my books from http://CJSHayward.com

Michael_Droettboom1 · August 1, 2008, 3:51pm

Just throwing out a suggestion here: You could try putting a matplotlibrc file in the same directory as your Python script -- it will use that instead of the one in ~/.matplotlib.

Cheers,
Mike

"Jonathan Hayward, http://JonathansCorner.com" wrote:

···

I have a PHP script which authenticates a user and I am trying to get the PHP script to wrap a Python script using matplotlib.

As it is, the script mostly works when invoked from the command line or as its own CGI script. When I call it from a PHP script, it doesn't produce output, and testing found that when I call a Python script from a PHP script, output works before but not after "import matplotlib": if the PHP script calls a script of:

#!/usr/bin/python
print "Before import matplotlib."
import matplotlib;
print "After import matplotlib."

the first print statement succeeds but the second one fails; the server log shows a crash of:

Before import matplotlib.Traceback (most recent call last):
 File "/home/jhayward/bintmp/test.py", line 5, in <module>
 import matplotlib;
 File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line 639, in <module>
 rcParams = rc_params()
 File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line 562, in rc_params
 fname = matplotlib_fname()
 File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line 513, in matplotlib_fname
 fname = os.path.join(get_configdir(), 'matplotlibrc')
 File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line 207, in wrapper
 ret = func(*args, **kwargs)
 File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line 403, in _get_configdir
 raise RuntimeError("Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)
RuntimeError: Failed to create /root/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

I think this error is somewhat misleading; it persisted after I ran a "chmod -R 1777 /root/.matplotlib".

What is the proper way to adjust things so matplotlib will be happy with its .matplotlib directory?

--
-- Jonathan Hayward, christos.jonathan.hayward@...287... <mailto:christos.jonathan.hayward@…287…>

** To see an award-winning website with stories, essays, artwork,
** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?
++ You can now get my books from http://CJSHayward.com
------------------------------------------------------------------------

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
------------------------------------------------------------------------

_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
matplotlib-users List Signup and Options

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

_Jonathan_Hayward_h1 · August 1, 2008, 4:38pm

Tried that and reran it; I’m getting substantially the same stacktrace:

File “/home/jhayward/bintmp/test.py”, line 5, in
import matplotlib;

File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 639, in
rcParams = rc_params()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 562, in rc_params

fname = matplotlib_fname()

File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 513, in matplotlib_fname
fname = os.path.join(get_configdir(), ‘matplotlibrc’)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 207, in wrapper

ret = func(*args, **kwargs)

File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 403, in _get_configdir
raise RuntimeError(“Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data”%h)

RuntimeError: Failed to create /root/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

It’s /path/matplotlibrc and not /path/.matplotlibrc or anything like that?

···

On Fri, Aug 1, 2008 at 10:51 AM, Michael Droettboom <mdroe@…86…> wrote:

Just throwing out a suggestion here: You could try putting a matplotlibrc file in the same directory as your Python script – it will use that instead of the one in ~/.matplotlib.

Cheers,

Mike

“Jonathan Hayward, http://JonathansCorner.com” wrote:

I have a PHP script which authenticates a user and I am trying to get the PHP script to wrap a Python script using matplotlib.

As it is, the script mostly works when invoked from the command line or as its own CGI script. When I call it from a PHP script, it doesn’t produce output, and testing found that when I call a Python script from a PHP script, output works before but not after “import matplotlib”: if the PHP script calls a script of:

#!/usr/bin/python

print “Before import matplotlib.”

import matplotlib;

print “After import matplotlib.”

the first print statement succeeds but the second one fails; the server log shows a crash of:

Before import matplotlib.Traceback (most recent call last):

File “/home/jhayward/bintmp/test.py”, line 5, in
import matplotlib;
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 639, in
rcParams = rc_params()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 562, in rc_params
fname = matplotlib_fname()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 513, in matplotlib_fname
fname = os.path.join(get_configdir(), 'matplotlibrc')
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 207, in wrapper
ret = func(*args, **kwargs)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 403, in _get_configdir
raise RuntimeError("Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)
RuntimeError: Failed to create /root/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

I think this error is somewhat misleading; it persisted after I ran a “chmod -R 1777 /root/.matplotlib”.

What is the proper way to adjust things so matplotlib will be happy with its .matplotlib directory?

–

– Jonathan Hayward, christos.jonathan.hayward@…287… mailto:christos.jonathan.hayward@...287...

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?

** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

This SF.Net email is sponsored by the Moblin Your Move Developer’s challenge

Build the coolest Linux based applications with Moblin SDK & win great prizes

Grand prize is a trip for two to an Open Source event anywhere in the world

http://moblin-contest.org/redirect.php?banner_id=100&url=/

Matplotlib-users mailing list

Matplotlib-users@lists.sourceforge.net

https://lists.sourceforge.net/lists/listinfo/matplotlib-users

–

Michael Droettboom

Science Software Branch

Operations and Engineering Division

Space Telescope Science Institute

Operated by AURA for NASA

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

_Jonathan_Hayward_h1 · August 1, 2008, 4:56pm

I found a reason for the behavior:

The script was running as user apache, but trying to open /root/.matplotlib, and /root was mode 0700. It stopped crashing on import after I made /root mode 0711.

This is somewhat surprising behavior to me; shouldn’t it be defaulting to something besides expected access to ~root?

···

On Fri, Aug 1, 2008 at 11:38 AM, Jonathan Hayward, http://JonathansCorner.com <jonathan.hayward@…789…> wrote:

Tried that and reran it; I’m getting substantially the same stacktrace:

File “/home/jhayward/bintmp/test.py”, line 5, in
import matplotlib;

File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 639, in
rcParams = rc_params()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 562, in rc_params
fname = matplotlib_fname()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 513, in matplotlib_fname
fname = os.path.join(get_configdir(), ‘matplotlibrc’)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 207, in wrapper
ret = func(*args, **kwargs)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 403, in _get_configdir
raise RuntimeError(“Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data”%h)

RuntimeError: Failed to create /root/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

It’s /path/matplotlibrc and not /path/.matplotlibrc or anything like that?

On Fri, Aug 1, 2008 at 10:51 AM, Michael Droettboom <mdroe@…86…> wrote:

Just throwing out a suggestion here: You could try putting a matplotlibrc file in the same directory as your Python script – it will use that instead of the one in ~/.matplotlib.

Cheers,

Mike

“Jonathan Hayward, http://JonathansCorner.com” wrote:

I have a PHP script which authenticates a user and I am trying to get the PHP script to wrap a Python script using matplotlib.

As it is, the script mostly works when invoked from the command line or as its own CGI script. When I call it from a PHP script, it doesn’t produce output, and testing found that when I call a Python script from a PHP script, output works before but not after “import matplotlib”: if the PHP script calls a script of:

#!/usr/bin/python

print “Before import matplotlib.”

import matplotlib;

print “After import matplotlib.”

the first print statement succeeds but the second one fails; the server log shows a crash of:

Before import matplotlib.Traceback (most recent call last):

File “/home/jhayward/bintmp/test.py”, line 5, in
import matplotlib;
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 639, in
rcParams = rc_params()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 562, in rc_params
fname = matplotlib_fname()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 513, in matplotlib_fname
fname = os.path.join(get_configdir(), 'matplotlibrc')
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 207, in wrapper
ret = func(*args, **kwargs)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 403, in _get_configdir
raise RuntimeError("Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)
RuntimeError: Failed to create /root/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

I think this error is somewhat misleading; it persisted after I ran a “chmod -R 1777 /root/.matplotlib”.

What is the proper way to adjust things so matplotlib will be happy with its .matplotlib directory?

–

– Jonathan Hayward, christos.jonathan.hayward@…287… mailto:christos.jonathan.hayward@...287...

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?

** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

This SF.Net email is sponsored by the Moblin Your Move Developer’s challenge

Build the coolest Linux based applications with Moblin SDK & win great prizes

Grand prize is a trip for two to an Open Source event anywhere in the world

http://moblin-contest.org/redirect.php?banner_id=100&url=/

Matplotlib-users mailing list

Matplotlib-users@lists.sourceforge.net

https://lists.sourceforge.net/lists/listinfo/matplotlib-users

–

Michael Droettboom

Science Software Branch

Operations and Engineering Division

Space Telescope Science Institute

Operated by AURA for NASA

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

Michael_Droettboom1 · August 1, 2008, 4:59pm

It's supposed to default to the current user's home directory. Perhaps "apache" doesn't have a home directory?

Cheers,
Mike

"Jonathan Hayward, http://JonathansCorner.com" wrote:

···

I found a reason for the behavior:

The script was running as user apache, but trying to open /root/.matplotlib, and /root was mode 0700. It stopped crashing on import after I made /root mode 0711.

This is somewhat surprising behavior to me; shouldn't it be defaulting to something besides expected access to ~root?

On Fri, Aug 1, 2008 at 11:38 AM, Jonathan Hayward, > http://JonathansCorner.com <jonathan.hayward@...789... > <mailto:jonathan.hayward@…789…>> wrote:

 Tried that and reran it; I'm getting substantially the same
 stacktrace:

 File "/home/jhayward/bintmp/test.py", line 5, in <module>
 import matplotlib;
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 639, in <module>
 rcParams = rc_params()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 562, in rc_params
 fname = matplotlib_fname()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 513, in matplotlib_fname
 fname = os.path.join(get_configdir(), 'matplotlibrc')
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 207, in wrapper
 ret = func(*args, **kwargs)
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 403, in _get_configdir
 raise RuntimeError("Failed to create %s/.matplotlib; consider
 setting MPLCONFIGDIR to a writable directory for matplotlib
 configuration data"%h)
 RuntimeError: Failed to create /root/.matplotlib; consider setting
 MPLCONFIGDIR to a writable directory for matplotlib configuration data

 It's /path/matplotlibrc and not /path/.matplotlibrc or anything
 like that?

 On Fri, Aug 1, 2008 at 10:51 AM, Michael Droettboom > <mdroe@...86... <mailto:mdroe@…86…>> wrote:

 Just throwing out a suggestion here: You could try putting a
 matplotlibrc file in the same directory as your Python script
 -- it will use that instead of the one in ~/.matplotlib.

 Cheers,
 Mike

 "Jonathan Hayward, http://JonathansCorner.com" wrote:

 I have a PHP script which authenticates a user and I am
 trying to get the PHP script to wrap a Python script using
 matplotlib.

 As it is, the script mostly works when invoked from the
 command line or as its own CGI script. When I call it from
 a PHP script, it doesn't produce output, and testing found
 that when I call a Python script from a PHP script, output
 works before but not after "import matplotlib": if the PHP
 script calls a script of:

 #!/usr/bin/python
 print "Before import matplotlib."
 import matplotlib;
 print "After import matplotlib."

 the first print statement succeeds but the second one
 fails; the server log shows a crash of:

 Before import matplotlib.Traceback (most recent call last):
 File "/home/jhayward/bintmp/test.py", line 5, in <module>
 import matplotlib;
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 639, in <module>
 rcParams = rc_params()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 562, in rc_params
 fname = matplotlib_fname()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 513, in matplotlib_fname
 fname = os.path.join(get_configdir(), 'matplotlibrc')
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 207, in wrapper
 ret = func(*args, **kwargs)
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 403, in _get_configdir
 raise RuntimeError("Failed to create %s/.matplotlib;
 consider setting MPLCONFIGDIR to a writable directory for
 matplotlib configuration data"%h)
 RuntimeError: Failed to create /root/.matplotlib; consider
 setting MPLCONFIGDIR to a writable directory for
 matplotlib configuration data

 I think this error is somewhat misleading; it persisted
 after I ran a "chmod -R 1777 /root/.matplotlib".

 What is the proper way to adjust things so matplotlib will
 be happy with its .matplotlib directory?

 -- -- Jonathan Hayward, christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>

 ** To see an award-winning website with stories, essays,
 artwork,
 ** games, and a four-dimensional maze, why not visit my
 home page?
 ** All of this is waiting for you at
 http://JonathansCorner.com

 ++ Would you like to curl up with one of my hardcover books?
 ++ You can now get my books from http://CJSHayward.com
 ------------------------------------------------------------------------

 -------------------------------------------------------------------------
 This SF.Net email is sponsored by the Moblin Your Move
 Developer's challenge
 Build the coolest Linux based applications with Moblin SDK
 & win great prizes
 Grand prize is a trip for two to an Open Source event
 anywhere in the world
 http://moblin-contest.org/redirect.php?banner_id=100&url=/
 <http://moblin-contest.org/redirect.php?banner_id=100&url=/>
 ------------------------------------------------------------------------

 _______________________________________________
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 <mailto:Matplotlib-users@lists.sourceforge.net>
 matplotlib-users List Signup and Options

 -- Michael Droettboom
 Science Software Branch
 Operations and Engineering Division
 Space Telescope Science Institute
 Operated by AURA for NASA

 -- -- Jonathan Hayward, christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>

 ** To see an award-winning website with stories, essays, artwork,
 ** games, and a four-dimensional maze, why not visit my home page?
 ** All of this is waiting for you at http://JonathansCorner.com

 ++ Would you like to curl up with one of my hardcover books?
 ++ You can now get my books from http://CJSHayward.com

--
-- Jonathan Hayward, christos.jonathan.hayward@...287... <mailto:christos.jonathan.hayward@…287…>

** To see an award-winning website with stories, essays, artwork,
** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?
++ You can now get my books from http://CJSHayward.com

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

_Jonathan_Hayward_h1 · August 1, 2008, 5:57pm

I found a reason for the behavior:

The script was running as
user apache, but trying to open /root/.matplotlib, and /root was mode
0700. It stopped crashing on import after I made /root mode 0711.

This is somewhat surprising behavior to me; shouldn’t it be defaulting to something besides expected access to ~root?

···

On Fri, Aug 1, 2008 at 11:38 AM, Jonathan Hayward, http://JonathansCorner.com <jonathan.hayward@…789…> wrote:

Tried that and reran it; I’m getting substantially the same stacktrace:

File “/home/jhayward/bintmp/test.py”, line 5, in
import matplotlib;

File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 639, in
rcParams = rc_params()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 562, in rc_params
fname = matplotlib_fname()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 513, in matplotlib_fname
fname = os.path.join(get_configdir(), ‘matplotlibrc’)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 207, in wrapper
ret = func(*args, **kwargs)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 403, in _get_configdir
raise RuntimeError(“Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data”%h)

RuntimeError: Failed to create /root/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

It’s /path/matplotlibrc and not /path/.matplotlibrc or anything like that?

On Fri, Aug 1, 2008 at 10:51 AM, Michael Droettboom <mdroe@…86…> wrote:

Just throwing out a suggestion here: You could try putting a matplotlibrc file in the same directory as your Python script – it will use that instead of the one in ~/.matplotlib.

Cheers,

Mike

“Jonathan Hayward, http://JonathansCorner.com” wrote:

I have a PHP script which authenticates a user and I am trying to get the PHP script to wrap a Python script using matplotlib.

As it is, the script mostly works when invoked from the command line or as its own CGI script. When I call it from a PHP script, it doesn’t produce output, and testing found that when I call a Python script from a PHP script, output works before but not after “import matplotlib”: if the PHP script calls a script of:

#!/usr/bin/python

print “Before import matplotlib.”

import matplotlib;

print “After import matplotlib.”

the first print statement succeeds but the second one fails; the server log shows a crash of:

Before import matplotlib.Traceback (most recent call last):

File “/home/jhayward/bintmp/test.py”, line 5, in
import matplotlib;
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 639, in
rcParams = rc_params()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 562, in rc_params
fname = matplotlib_fname()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 513, in matplotlib_fname
fname = os.path.join(get_configdir(), 'matplotlibrc')
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 207, in wrapper
ret = func(*args, **kwargs)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 403, in _get_configdir
raise RuntimeError("Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)
RuntimeError: Failed to create /root/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

I think this error is somewhat misleading; it persisted after I ran a “chmod -R 1777 /root/.matplotlib”.

What is the proper way to adjust things so matplotlib will be happy with its .matplotlib directory?

–

– Jonathan Hayward, christos.jonathan.hayward@…287… mailto:christos.jonathan.hayward@...287...

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?

** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

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https://lists.sourceforge.net/lists/listinfo/matplotlib-users

–

Michael Droettboom

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Operations and Engineering Division

Space Telescope Science Institute

Operated by AURA for NASA

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

_Jonathan_Hayward_h1 · August 1, 2008, 6:02pm

User apache exists with home directory /var/www, which exists.

···

On Fri, Aug 1, 2008 at 11:59 AM, Michael Droettboom <mdroe@…86…> wrote:

It’s supposed to default to the current user’s home directory. Perhaps “apache” doesn’t have a home directory?

Cheers,

Mike

“Jonathan Hayward, http://JonathansCorner.com” wrote:

I found a reason for the behavior:

The script was running as user apache, but trying to open /root/.matplotlib, and /root was mode 0700. It stopped crashing on import after I made /root mode 0711.

This is somewhat surprising behavior to me; shouldn’t it be defaulting to something besides expected access to ~root?

On Fri, Aug 1, 2008 at 11:38 AM, Jonathan Hayward, http://JonathansCorner.com <jonathan.hayward@…789… mailto:jonathan.hayward@...789...> wrote:

Tried that and reran it; I'm getting substantially the same

stacktrace:





  File "/home/jhayward/bintmp/test.py", line 5, in <module>

    import matplotlib;

  File

"/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

639, in <module>

    rcParams = rc_params()

  File

"/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

562, in rc_params

    fname = matplotlib_fname()

  File

"/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

513, in matplotlib_fname

    fname = os.path.join(get_configdir(), 'matplotlibrc')

  File

"/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

207, in wrapper

    ret = func(*args, **kwargs)

  File

"/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

403, in _get_configdir

    raise RuntimeError("Failed to create %s/.matplotlib; consider

setting MPLCONFIGDIR to a writable directory for matplotlib

configuration data"%h)

RuntimeError: Failed to create /root/.matplotlib; consider setting

MPLCONFIGDIR to a writable directory for matplotlib configuration data



It's /path/matplotlibrc and not /path/.matplotlibrc or anything

like that?





On Fri, Aug 1, 2008 at 10:51 AM, Michael Droettboom > > <mdroe@...86... <mailto:mdroe@...86...>> wrote:



    Just throwing out a suggestion here: You could try putting a

    matplotlibrc file in the same directory as your Python script

    -- it will use that instead of the one in ~/.matplotlib.



    Cheers,

    Mike





    "Jonathan Hayward, [http://JonathansCorner.com](http://JonathansCorner.com)" wrote:



        I have a PHP script which authenticates a user and I am

        trying to get the PHP script to wrap a Python script using

        matplotlib.



        As it is, the script mostly works when invoked from the

        command line or as its own CGI script. When I call it from

        a PHP script, it doesn't produce output, and testing found

        that when I call a Python script from a PHP script, output

        works before but not after "import matplotlib": if the PHP

        script calls a script of:



        #!/usr/bin/python

        print "Before import matplotlib."

        import matplotlib;

        print "After import matplotlib."



        the first print statement succeeds but the second one

        fails; the server log shows a crash of:



        Before import matplotlib.Traceback (most recent call last):

         File "/home/jhayward/bintmp/test.py", line 5, in <module>

           import matplotlib;

         File

        "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

        line 639, in <module>

           rcParams = rc_params()

         File

        "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

        line 562, in rc_params

           fname = matplotlib_fname()

         File

        "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

        line 513, in matplotlib_fname

           fname = os.path.join(get_configdir(), 'matplotlibrc')

         File

        "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

        line 207, in wrapper

           ret = func(*args, **kwargs)

         File

        "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

        line 403, in _get_configdir

           raise RuntimeError("Failed to create %s/.matplotlib;

        consider setting MPLCONFIGDIR to a writable directory for

        matplotlib configuration data"%h)

        RuntimeError: Failed to create /root/.matplotlib; consider

        setting MPLCONFIGDIR to a writable directory for

        matplotlib configuration data



        I think this error is somewhat misleading; it persisted

        after I ran a "chmod -R 1777 /root/.matplotlib".



        What is the proper way to adjust things so matplotlib will

        be happy with its .matplotlib directory?



        --            -- Jonathan Hayward, christos.jonathan.hayward@...287...

        <mailto:christos.jonathan.hayward@...287...>

        <mailto:christos.jonathan.hayward@...287...

        <mailto:christos.jonathan.hayward@...287...>>





        ** To see an award-winning website with stories, essays,

        artwork,

        ** games, and a four-dimensional maze, why not visit my

        home page?

        ** All of this is waiting for you at

        [http://JonathansCorner.com](http://JonathansCorner.com)



        ++ Would you like to curl up with one of my hardcover books?

        ++ You can now get my books from [http://CJSHayward.com](http://CJSHayward.com)

        ------------------------------------------------------------------------



        -------------------------------------------------------------------------

        This SF.Net email is sponsored by the Moblin Your Move

        Developer's challenge

        Build the coolest Linux based applications with Moblin SDK

        & win great prizes

        Grand prize is a trip for two to an Open Source event

        anywhere in the world

        [http://moblin-contest.org/redirect.php?banner_id=100&url=/](http://moblin-contest.org/redirect.php?banner_id=100&url=/)

        <[http://moblin-contest.org/redirect.php?banner_id=100&url=/](http://moblin-contest.org/redirect.php?banner_id=100&url=/)>

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        _______________________________________________

        Matplotlib-users mailing list

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mailto:Matplotlib-users@lists.sourceforge.net

        [https://lists.sourceforge.net/lists/listinfo/matplotlib-users](https://lists.sourceforge.net/lists/listinfo/matplotlib-users)

        



    --        Michael Droettboom

    Science Software Branch

    Operations and Engineering Division

    Space Telescope Science Institute

    Operated by AURA for NASA









--    -- Jonathan Hayward, christos.jonathan.hayward@...287...

mailto:christos.jonathan.hayward@...287...
** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?

** All of this is waiting for you at [http://JonathansCorner.com](http://JonathansCorner.com)



++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from [http://CJSHayward.com](http://CJSHayward.com)
–

– Jonathan Hayward, christos.jonathan.hayward@…287… mailto:christos.jonathan.hayward@...287...

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?

** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

–

Michael Droettboom

Science Software Branch

Operations and Engineering Division

Space Telescope Science Institute

Operated by AURA for NASA

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

Michael_Droettboom1 · August 1, 2008, 6:09pm

Below is the code in mpl that actually does the lookup. To get to the bottom of this, I would try to figure out in your Apache/PHP environment what

a) what os.path.expanduser("~") gives

b) what the values of the environment variables "HOME", "USERPROFILE", "USER", and "TMP" are.

I suspect either matplotlib is not getting run under user 'apache' as it should, or there is something fishy about the environment.

Cheers,
Mike

def _get_home():
"""Find user's home directory if possible.
Otherwise raise error.

    :see: http://mail.python.org/pipermail/python-list/2005-February/263921.html
    """
    path=''
    try:
        path=os.path.expanduser("~")
    except:
        pass
    if not os.path.isdir(path):
        for evar in ('HOME', 'USERPROFILE', 'TMP'):
            try:
                path = os.environ[evar]
                if os.path.isdir(path):
                    break
            except: pass
    if path:
        return path
    else:
        raise RuntimeError('please define environment variable $HOME')

get_home = verbose.wrap('$HOME=%s', _get_home, always=False)

def _get_configdir():
"""
Return the string representing the configuration dir.

    default is HOME/.matplotlib. you can override this with the
    MPLCONFIGDIR environment variable
    """

    configdir = os.environ.get('MPLCONFIGDIR')
    if configdir is not None:
        if not _is_writable_dir(configdir):
            raise RuntimeError('Could not write to MPLCONFIGDIR="%s"'%configdir)
        return configdir

h = get_home()
p = os.path.join(get_home(), '.matplotlib')

    if os.path.exists(p):
        if not _is_writable_dir(p):
            raise RuntimeError("'%s' is not a writable dir; you must set %s/.matplotlib to be a writable dir. You can also set environment variable MPLCONFIGDIR to any writable directory where you want matplotlib data stored "% (h, h))
    else:
        if not _is_writable_dir(h):
            raise RuntimeError("Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)

os.mkdir(p)

"Jonathan Hayward, http://JonathansCorner.com" wrote:

···

User apache exists with home directory /var/www, which exists.

On Fri, Aug 1, 2008 at 11:59 AM, Michael Droettboom <mdroe@...86... > <mailto:mdroe@…86…>> wrote:

 It's supposed to default to the current user's home directory.
 Perhaps "apache" doesn't have a home directory?

 Cheers,
 Mike

 "Jonathan Hayward, http://JonathansCorner.com" wrote:

 I found a reason for the behavior:

 The script was running as user apache, but trying to open
 /root/.matplotlib, and /root was mode 0700. It stopped
 crashing on import after I made /root mode 0711.

 This is somewhat surprising behavior to me; shouldn't it be
 defaulting to something besides expected access to ~root?

 On Fri, Aug 1, 2008 at 11:38 AM, Jonathan Hayward, > http://JonathansCorner.com <jonathan.hayward@...789... > <mailto:jonathan.hayward@…789…> > <mailto:jonathan.hayward@…789… > <mailto:jonathan.hayward@…789…>>> wrote:

 Tried that and reran it; I'm getting substantially the same
 stacktrace:

 File "/home/jhayward/bintmp/test.py", line 5, in <module>
 import matplotlib;
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 639, in <module>
 rcParams = rc_params()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 562, in rc_params
 fname = matplotlib_fname()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 513, in matplotlib_fname
 fname = os.path.join(get_configdir(), 'matplotlibrc')
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 207, in wrapper
 ret = func(*args, **kwargs)
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 403, in _get_configdir
 raise RuntimeError("Failed to create %s/.matplotlib;
 consider
 setting MPLCONFIGDIR to a writable directory for matplotlib
 configuration data"%h)
 RuntimeError: Failed to create /root/.matplotlib; consider
 setting
 MPLCONFIGDIR to a writable directory for matplotlib
 configuration data

 It's /path/matplotlibrc and not /path/.matplotlibrc or anything
 like that?

 On Fri, Aug 1, 2008 at 10:51 AM, Michael Droettboom > <mdroe@...86... <mailto:mdroe@…86…> > <mailto:mdroe@…86…>> wrote:

 Just throwing out a suggestion here: You could try
 putting a
 matplotlibrc file in the same directory as your Python
 script
 -- it will use that instead of the one in ~/.matplotlib.

 Cheers,
 Mike

 "Jonathan Hayward, http://JonathansCorner.com" wrote:

 I have a PHP script which authenticates a user and I am
 trying to get the PHP script to wrap a Python
 script using
 matplotlib.

 As it is, the script mostly works when invoked from the
 command line or as its own CGI script. When I call
 it from
 a PHP script, it doesn't produce output, and
 testing found
 that when I call a Python script from a PHP script,
 output
 works before but not after "import matplotlib": if
 the PHP
 script calls a script of:

 #!/usr/bin/python
 print "Before import matplotlib."
 import matplotlib;
 print "After import matplotlib."

 the first print statement succeeds but the second one
 fails; the server log shows a crash of:

 Before import matplotlib.Traceback (most recent
 call last):
 File "/home/jhayward/bintmp/test.py", line 5, in
 <module>
 import matplotlib;
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 639, in <module>
 rcParams = rc_params()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 562, in rc_params
 fname = matplotlib_fname()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 513, in matplotlib_fname
 fname = os.path.join(get_configdir(),
 'matplotlibrc')
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 207, in wrapper
 ret = func(*args, **kwargs)
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 403, in _get_configdir
 raise RuntimeError("Failed to create %s/.matplotlib;
 consider setting MPLCONFIGDIR to a writable
 directory for
 matplotlib configuration data"%h)
 RuntimeError: Failed to create /root/.matplotlib;
 consider
 setting MPLCONFIGDIR to a writable directory for
 matplotlib configuration data

 I think this error is somewhat misleading; it persisted
 after I ran a "chmod -R 1777 /root/.matplotlib".

 What is the proper way to adjust things so
 matplotlib will
 be happy with its .matplotlib directory?

 -- -- Jonathan Hayward,
 christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>>

 ** To see an award-winning website with stories,
 essays,
 artwork,
 ** games, and a four-dimensional maze, why not visit my
 home page?
 ** All of this is waiting for you at
 http://JonathansCorner.com

 ++ Would you like to curl up with one of my
 hardcover books?
 ++ You can now get my books from http://CJSHayward.com
 ------------------------------------------------------------------------

 -------------------------------------------------------------------------
 This SF.Net email is sponsored by the Moblin Your Move
 Developer's challenge
 Build the coolest Linux based applications with
 Moblin SDK
 & win great prizes
 Grand prize is a trip for two to an Open Source event
 anywhere in the world
 http://moblin-contest.org/redirect.php?banner_id=100&url=/
 <http://moblin-contest.org/redirect.php?banner_id=100&url=/>
 <http://moblin-contest.org/redirect.php?banner_id=100&url=/
 <http://moblin-contest.org/redirect.php?banner_id=100&url=/>>
 ------------------------------------------------------------------------

 _______________________________________________
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 <mailto:Matplotlib-users@lists.sourceforge.net>
 <mailto:Matplotlib-users@lists.sourceforge.net
 <mailto:Matplotlib-users@lists.sourceforge.net>>

 matplotlib-users List Signup and Options

 -- Michael Droettboom
 Science Software Branch
 Operations and Engineering Division
 Space Telescope Science Institute
 Operated by AURA for NASA

 -- -- Jonathan Hayward,
 christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>

 ** To see an award-winning website with stories, essays,
 artwork,
 ** games, and a four-dimensional maze, why not visit my
 home page?
 ** All of this is waiting for you at http://JonathansCorner.com

 ++ Would you like to curl up with one of my hardcover books?
 ++ You can now get my books from http://CJSHayward.com

 -- -- Jonathan Hayward, christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>

 ** To see an award-winning website with stories, essays, artwork,
 ** games, and a four-dimensional maze, why not visit my home page?
 ** All of this is waiting for you at http://JonathansCorner.com

 ++ Would you like to curl up with one of my hardcover books?
 ++ You can now get my books from http://CJSHayward.com

 -- Michael Droettboom
 Science Software Branch
 Operations and Engineering Division
 Space Telescope Science Institute
 Operated by AURA for NASA

--
-- Jonathan Hayward, christos.jonathan.hayward@...287... <mailto:christos.jonathan.hayward@…287…>

** To see an award-winning website with stories, essays, artwork,
** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?
++ You can now get my books from http://CJSHayward.com

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

_Jonathan_Hayward_h1 · August 1, 2008, 6:22pm

It looks like an apache that thinks it’s root:

os.system(“whoami”)
print “
”
print os.geteuid()
print “
”
print os.getuid()

print “
”
print os.path.expanduser(“~”)
print “
”
print os.getenv(“HOME”)
print “
”
print os.getenv(“USERPROFILE”)

print “
”

print os.getenv(“USER”)
print “
”
print os.getenv(“TMP”)
print “
”

produces:

apache

81

/root

None

root

None

So I should adjust the system so a confused apache-owned process that thinks it’s root will run? Or are there features to ask PHP to spawn subprocesses that know who they’re running as? (or is that something beside the point of this list?)

···

On Fri, Aug 1, 2008 at 1:09 PM, Michael Droettboom <mdroe@…86…> wrote:

Below is the code in mpl that actually does the lookup. To get to the bottom of this, I would try to figure out in your Apache/PHP environment what

a) what os.path.expanduser(“~”) gives

b) what the values of the environment variables “HOME”, “USERPROFILE”, “USER”, and “TMP” are.

I suspect either matplotlib is not getting run under user ‘apache’ as it should, or there is something fishy about the environment.

Cheers,

Mike

def _get_home():

“”"Find user’s home directory if possible.

Otherwise raise error.

:see: http://mail.python.org/pipermail/python-list/2005-February/263921.html

“”"

path=‘’

try:
   path=os.path.expanduser("~")
except:
   pass
if not os.path.isdir(path):
   for evar in ('HOME', 'USERPROFILE', 'TMP'):

       try:

           path = os.environ[evar]

           if os.path.isdir(path):

               break

       except: pass
if path:
   return path
else:
   raise RuntimeError('please define environment variable $HOME')
get_home = verbose.wrap(‘$HOME=%s’, _get_home, always=False)

def _get_configdir():

“”"

Return the string representing the configuration dir.

default is HOME/.matplotlib. you can override this with the

MPLCONFIGDIR environment variable

“”"

configdir = os.environ.get(‘MPLCONFIGDIR’)

if configdir is not None:
   if not _is_writable_dir(configdir):

       raise RuntimeError('Could not write to MPLCONFIGDIR="%s"'%configdir)

   return configdir
h = get_home()

p = os.path.join(get_home(), ‘.matplotlib’)

if os.path.exists(p):
   if not _is_writable_dir(p):

       raise RuntimeError("'%s' is not a writable dir; you must set %s/.matplotlib to be a writable dir.  You can also set environment variable MPLCONFIGDIR to any writable directory where you want matplotlib data stored "% (h, h))
else:
   if not _is_writable_dir(h):


       raise RuntimeError("Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)

os.mkdir(p)

“Jonathan Hayward, http://JonathansCorner.com” wrote:

User apache exists with home directory /var/www, which exists.

On Fri, Aug 1, 2008 at 11:59 AM, Michael Droettboom <mdroe@…86… mailto:mdroe@...86...> wrote:

It's supposed to default to the current user's home directory.

 Perhaps "apache" doesn't have a home directory?





Cheers,

Mike



"Jonathan Hayward, [http://JonathansCorner.com](http://JonathansCorner.com)" wrote:



    I found a reason for the behavior:



    The script was running as user apache, but trying to open

    /root/.matplotlib, and /root was mode 0700. It stopped

    crashing on import after I made /root mode 0711.



    This is somewhat surprising behavior to me; shouldn't it be

    defaulting to something besides expected access to ~root?



    On Fri, Aug 1, 2008 at 11:38 AM, Jonathan Hayward,

    [http://JonathansCorner.com](http://JonathansCorner.com) <jonathan.hayward@...789...

    <mailto:jonathan.hayward@...789...>

    <mailto:jonathan.hayward@...789...

    <mailto:jonathan.hayward@...789...>>> wrote:



       Tried that and reran it; I'm getting substantially the same

       stacktrace:





         File "/home/jhayward/bintmp/test.py", line 5, in <module>

           import matplotlib;

         File

             "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

       639, in <module>

           rcParams = rc_params()

         File

             "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

       562, in rc_params

           fname = matplotlib_fname()

         File

             "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

       513, in matplotlib_fname

           fname = os.path.join(get_configdir(), 'matplotlibrc')

         File

             "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

       207, in wrapper

           ret = func(*args, **kwargs)

         File

             "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line

       403, in _get_configdir

           raise RuntimeError("Failed to create %s/.matplotlib;

    consider

       setting MPLCONFIGDIR to a writable directory for matplotlib

       configuration data"%h)

       RuntimeError: Failed to create /root/.matplotlib; consider

    setting

       MPLCONFIGDIR to a writable directory for matplotlib

    configuration data



       It's /path/matplotlibrc and not /path/.matplotlibrc or anything

       like that?





       On Fri, Aug 1, 2008 at 10:51 AM, Michael Droettboom > >  > >            <mdroe@...86... <mailto:mdroe@...86...> > > <mailto:mdroe@...86... <mailto:mdroe@...86...>>> wrote:



           Just throwing out a suggestion here: You could try

    putting a

           matplotlibrc file in the same directory as your Python

    script

           -- it will use that instead of the one in ~/.matplotlib.



           Cheers,

           Mike





           "Jonathan Hayward, [http://JonathansCorner.com](http://JonathansCorner.com)" wrote:



               I have a PHP script which authenticates a user and I am

               trying to get the PHP script to wrap a Python

    script using

               matplotlib.



               As it is, the script mostly works when invoked from the

               command line or as its own CGI script. When I call

    it from

               a PHP script, it doesn't produce output, and

    testing found

               that when I call a Python script from a PHP script,

    output

               works before but not after "import matplotlib": if

    the PHP

               script calls a script of:



               #!/usr/bin/python

               print "Before import matplotlib."

               import matplotlib;

               print "After import matplotlib."



               the first print statement succeeds but the second one

               fails; the server log shows a crash of:



               Before import matplotlib.Traceback (most recent

    call last):

                File "/home/jhayward/bintmp/test.py", line 5, in

    <module>

                  import matplotlib;

                File

                     "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

               line 639, in <module>

                  rcParams = rc_params()

                File

                     "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

               line 562, in rc_params

                  fname = matplotlib_fname()

                File

                     "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

               line 513, in matplotlib_fname

                  fname = os.path.join(get_configdir(),

    'matplotlibrc')

                File

                     "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

               line 207, in wrapper

                  ret = func(*args, **kwargs)

                File

                     "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",

               line 403, in _get_configdir

                  raise RuntimeError("Failed to create %s/.matplotlib;

               consider setting MPLCONFIGDIR to a writable

    directory for

               matplotlib configuration data"%h)

               RuntimeError: Failed to create /root/.matplotlib;

    consider

               setting MPLCONFIGDIR to a writable directory for

               matplotlib configuration data



               I think this error is somewhat misleading; it persisted

               after I ran a "chmod -R 1777 /root/.matplotlib".



               What is the proper way to adjust things so

    matplotlib will

               be happy with its .matplotlib directory?



               --            -- Jonathan Hayward,

    christos.jonathan.hayward@...287...

    <mailto:christos.jonathan.hayward@...287...>

               <mailto:christos.jonathan.hayward@...287...

    <mailto:christos.jonathan.hayward@...287...>>

               <mailto:christos.jonathan.hayward@...287...

    <mailto:christos.jonathan.hayward@...287...>

               <mailto:christos.jonathan.hayward@...287...

    <mailto:christos.jonathan.hayward@...287...>>>





               ** To see an award-winning website with stories,

    essays,

               artwork,

               ** games, and a four-dimensional maze, why not visit my

               home page?

               ** All of this is waiting for you at

               [http://JonathansCorner.com](http://JonathansCorner.com)



               ++ Would you like to curl up with one of my

    hardcover books?

               ++ You can now get my books from [http://CJSHayward.com](http://CJSHayward.com)

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           --        Michael Droettboom

           Science Software Branch

           Operations and Engineering Division

           Space Telescope Science Institute

           Operated by AURA for NASA









       --    -- Jonathan Hayward,

    christos.jonathan.hayward@...287...

    <mailto:christos.jonathan.hayward@...287...>

       <mailto:christos.jonathan.hayward@...287...

    <mailto:christos.jonathan.hayward@...287...>>



       ** To see an award-winning website with stories, essays,

    artwork,

       ** games, and a four-dimensional maze, why not visit my

    home page?

       ** All of this is waiting for you at [http://JonathansCorner.com](http://JonathansCorner.com)



       ++ Would you like to curl up with one of my hardcover books?

       ++ You can now get my books from [http://CJSHayward.com](http://CJSHayward.com)









    --        -- Jonathan Hayward, christos.jonathan.hayward@...287...

    <mailto:christos.jonathan.hayward@...287...>

    <mailto:christos.jonathan.hayward@...287...

    <mailto:christos.jonathan.hayward@...287...>>



    ** To see an award-winning website with stories, essays, artwork,

    ** games, and a four-dimensional maze, why not visit my home page?

    ** All of this is waiting for you at [http://JonathansCorner.com](http://JonathansCorner.com)



    ++ Would you like to curl up with one of my hardcover books?

    ++ You can now get my books from [http://CJSHayward.com](http://CJSHayward.com)

– Michael Droettboom
Science Software Branch

Operations and Engineering Division

Space Telescope Science Institute

Operated by AURA for NASA
–

– Jonathan Hayward, christos.jonathan.hayward@…287… mailto:christos.jonathan.hayward@...287...

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?

** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

–

Michael Droettboom

Science Software Branch

Operations and Engineering Division

Space Telescope Science Institute

Operated by AURA for NASA

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,

** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?

++ You can now get my books from http://CJSHayward.com

Michael_Droettboom1 · August 1, 2008, 6:40pm

This is getting a bit outside of my knowledge area, but it does look like the environment variables are not being set up correctly when the Python process is run. This is probably a more general apache/mod_php sort of question, but it would be great to post the answer here so we can add a solution to the matplotlib FAQ.

Cheers,
Mike

"Jonathan Hayward, http://JonathansCorner.com" wrote:

···

It looks like an apache that thinks it's root:

os.system("whoami")
print " "
print os.geteuid()
print " "
print os.getuid()
print " "
print os.path.expanduser("~")
print " "
print os.getenv("HOME")
print " "
print os.getenv("USERPROFILE")
print " "
print os.getenv("USER")
print " "
print os.getenv("TMP")
print " "

produces:

apache
81
/root
None
root
None

So I should adjust the system so a confused apache-owned process that thinks it's root will run? Or are there features to ask PHP to spawn subprocesses that know who they're running as? (or is that something beside the point of this list?)

On Fri, Aug 1, 2008 at 1:09 PM, Michael Droettboom <mdroe@...86... > <mailto:mdroe@…86…>> wrote:

 Below is the code in mpl that actually does the lookup. To get to
 the bottom of this, I would try to figure out in your Apache/PHP
 environment what

 a) what os.path.expanduser("~") gives

 b) what the values of the environment variables "HOME",
 "USERPROFILE", "USER", and "TMP" are.

 I suspect either matplotlib is not getting run under user 'apache'
 as it should, or there is something fishy about the environment.

 Cheers,
 Mike

 def _get_home():
 """Find user's home directory if possible.
 Otherwise raise error.

 :see:
 http://mail.python.org/pipermail/python-list/2005-February/263921.html
 """
 path=''
 try:
 path=os.path.expanduser("~")
 except:
 pass
 if not os.path.isdir(path):
 for evar in ('HOME', 'USERPROFILE', 'TMP'):
 try:
 path = os.environ[evar]
 if os.path.isdir(path):
 break
 except: pass
 if path:
 return path
 else:
 raise RuntimeError('please define environment variable $HOME')

 get_home = verbose.wrap('$HOME=%s', _get_home, always=False)

 def _get_configdir():
 """
 Return the string representing the configuration dir.

 default is HOME/.matplotlib. you can override this with the
 MPLCONFIGDIR environment variable
 """

 configdir = os.environ.get('MPLCONFIGDIR')
 if configdir is not None:
 if not _is_writable_dir(configdir):
 raise RuntimeError('Could not write to
 MPLCONFIGDIR="%s"'%configdir)
 return configdir

 h = get_home()
 p = os.path.join(get_home(), '.matplotlib')

 if os.path.exists(p):
 if not _is_writable_dir(p):
 raise RuntimeError("'%s' is not a writable dir; you must
 set %s/.matplotlib to be a writable dir. You can also set
 environment variable MPLCONFIGDIR to any writable directory where
 you want matplotlib data stored "% (h, h))
 else:
 if not _is_writable_dir(h):

 raise RuntimeError("Failed to create %s/.matplotlib;
 consider setting MPLCONFIGDIR to a writable directory for
 matplotlib configuration data"%h)

 os.mkdir(p)

 "Jonathan Hayward, http://JonathansCorner.com" wrote:

 User apache exists with home directory /var/www, which exists.

 On Fri, Aug 1, 2008 at 11:59 AM, Michael Droettboom > <mdroe@...86... <mailto:mdroe@…86…> > <mailto:mdroe@…86…>> wrote:

 It's supposed to default to the current user's home directory.
 Perhaps "apache" doesn't have a home directory?

 Cheers,
 Mike

 "Jonathan Hayward, http://JonathansCorner.com" wrote:

 I found a reason for the behavior:

 The script was running as user apache, but trying to open
 /root/.matplotlib, and /root was mode 0700. It stopped
 crashing on import after I made /root mode 0711.

 This is somewhat surprising behavior to me; shouldn't it be
 defaulting to something besides expected access to ~root?

 On Fri, Aug 1, 2008 at 11:38 AM, Jonathan Hayward,
 http://JonathansCorner.com <jonathan.hayward@...789...
 <mailto:jonathan.hayward@…789…>
 <mailto:jonathan.hayward@…789…
 <mailto:jonathan.hayward@…789…>>
 <mailto:jonathan.hayward@…789…
 <mailto:jonathan.hayward@…789…>
 <mailto:jonathan.hayward@…789…
 <mailto:jonathan.hayward@…789…>>>> wrote:

 Tried that and reran it; I'm getting substantially
 the same
 stacktrace:

 File "/home/jhayward/bintmp/test.py", line 5, in
 <module>
 import matplotlib;
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 639, in <module>
 rcParams = rc_params()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 562, in rc_params
 fname = matplotlib_fname()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 513, in matplotlib_fname
 fname = os.path.join(get_configdir(),
 'matplotlibrc')
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 207, in wrapper
 ret = func(*args, **kwargs)
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
 403, in _get_configdir
 raise RuntimeError("Failed to create %s/.matplotlib;
 consider
 setting MPLCONFIGDIR to a writable directory for
 matplotlib
 configuration data"%h)
 RuntimeError: Failed to create /root/.matplotlib;
 consider
 setting
 MPLCONFIGDIR to a writable directory for matplotlib
 configuration data

 It's /path/matplotlibrc and not /path/.matplotlibrc
 or anything
 like that?

 On Fri, Aug 1, 2008 at 10:51 AM, Michael Droettboom > <mdroe@...86... <mailto:mdroe@…86…> > <mailto:mdroe@…86…> > <mailto:mdroe@…86… > <mailto:mdroe@…86…>>> wrote:

 Just throwing out a suggestion here: You could try
 putting a
 matplotlibrc file in the same directory as your
 Python
 script
 -- it will use that instead of the one in
 ~/.matplotlib.

 Cheers,
 Mike

 "Jonathan Hayward, http://JonathansCorner.com"
 wrote:

 I have a PHP script which authenticates a
 user and I am
 trying to get the PHP script to wrap a Python
 script using
 matplotlib.

 As it is, the script mostly works when
 invoked from the
 command line or as its own CGI script. When
 I call
 it from
 a PHP script, it doesn't produce output, and
 testing found
 that when I call a Python script from a PHP
 script,
 output
 works before but not after "import
 matplotlib": if
 the PHP
 script calls a script of:

 #!/usr/bin/python
 print "Before import matplotlib."
 import matplotlib;
 print "After import matplotlib."

 the first print statement succeeds but the
 second one
 fails; the server log shows a crash of:

 Before import matplotlib.Traceback (most recent
 call last):
 File "/home/jhayward/bintmp/test.py", line
 5, in
 <module>
 import matplotlib;
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 639, in <module>
 rcParams = rc_params()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 562, in rc_params
 fname = matplotlib_fname()
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 513, in matplotlib_fname
 fname = os.path.join(get_configdir(),
 'matplotlibrc')
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 207, in wrapper
 ret = func(*args, **kwargs)
 File
 "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py",
 line 403, in _get_configdir
 raise RuntimeError("Failed to create
 %s/.matplotlib;
 consider setting MPLCONFIGDIR to a writable
 directory for
 matplotlib configuration data"%h)
 RuntimeError: Failed to create
 /root/.matplotlib;
 consider
 setting MPLCONFIGDIR to a writable directory for
 matplotlib configuration data

 I think this error is somewhat misleading;
 it persisted
 after I ran a "chmod -R 1777 /root/.matplotlib".

 What is the proper way to adjust things so
 matplotlib will
 be happy with its .matplotlib directory?

 -- -- Jonathan Hayward,
 christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>>>

 ** To see an award-winning website with stories,
 essays,
 artwork,
 ** games, and a four-dimensional maze, why
 not visit my
 home page?
 ** All of this is waiting for you at
 http://JonathansCorner.com

 ++ Would you like to curl up with one of my
 hardcover books?
 ++ You can now get my books from
 http://CJSHayward.com
 ------------------------------------------------------------------------

 -------------------------------------------------------------------------
 This SF.Net email is sponsored by the Moblin
 Your Move
 Developer's challenge
 Build the coolest Linux based applications with
 Moblin SDK
 & win great prizes
 Grand prize is a trip for two to an Open
 Source event
 anywhere in the world
 http://moblin-contest.org/redirect.php?banner_id=100&url=/
 <http://moblin-contest.org/redirect.php?banner_id=100&url=/>
 <http://moblin-contest.org/redirect.php?banner_id=100&url=/
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 _______________________________________________
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 matplotlib-users List Signup and Options
 -- Michael Droettboom
 Science Software Branch
 Operations and Engineering Division
 Space Telescope Science Institute
 Operated by AURA for NASA

 -- -- Jonathan Hayward,
 christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>>

 ** To see an award-winning website with stories, essays,
 artwork,
 ** games, and a four-dimensional maze, why not visit my
 home page?
 ** All of this is waiting for you at
 http://JonathansCorner.com

 ++ Would you like to curl up with one of my
 hardcover books?
 ++ You can now get my books from http://CJSHayward.com

 -- -- Jonathan Hayward,
 christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>>

 ** To see an award-winning website with stories,
 essays, artwork,
 ** games, and a four-dimensional maze, why not visit my
 home page?
 ** All of this is waiting for you at
 http://JonathansCorner.com

 ++ Would you like to curl up with one of my hardcover
 books?
 ++ You can now get my books from http://CJSHayward.com

 -- Michael Droettboom
 Science Software Branch
 Operations and Engineering Division
 Space Telescope Science Institute
 Operated by AURA for NASA

 -- -- Jonathan Hayward, christos.jonathan.hayward@...287...
 <mailto:christos.jonathan.hayward@…287…>
 <mailto:christos.jonathan.hayward@…287…
 <mailto:christos.jonathan.hayward@…287…>>

 ** To see an award-winning website with stories, essays, artwork,
 ** games, and a four-dimensional maze, why not visit my home page?
 ** All of this is waiting for you at http://JonathansCorner.com

 ++ Would you like to curl up with one of my hardcover books?
 ++ You can now get my books from http://CJSHayward.com

 -- Michael Droettboom
 Science Software Branch
 Operations and Engineering Division
 Space Telescope Science Institute
 Operated by AURA for NASA

--
-- Jonathan Hayward, christos.jonathan.hayward@...287... <mailto:christos.jonathan.hayward@…287…>

** To see an award-winning website with stories, essays, artwork,
** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?
++ You can now get my books from http://CJSHayward.com

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

_R_Haynie · August 3, 2008, 3:41am

Jonathan,

If you did not get a response by now, you can try the following.

import os# set HOME environment variable to a directory the httpd server can write to
os.environ[ ‘HOME’ ] = ‘c:/www/app/tmp/’

Good luck.

-Rodney

···

From:
matplotlib-users-bounces@lists.sourceforge.net [mailto:matplotlib-users-bounces@lists.sourceforge.net] On Behalf Of “Jonathan Hayward, http://JonathansCorner.com”
Sent: Friday, August 01, 2008 11:26 AM
To: Matplotlib
Subject:
[Matplotlib-users] Crash on import with CGI wrapped by PHP–unhappywith .matplotlib directory?

I have a PHP script which authenticates a user and I am trying to get the PHP script to wrap a Python script using matplotlib.

As it is, the script mostly works when invoked from the command line or as its own CGI script. When I call it from a PHP script, it doesn’t produce output, and testing found that when I call a Python script from a PHP script, output works before but not after “import matplotlib”: if the PHP script calls a script of:

#!/usr/bin/python
print “Before import matplotlib.”
import matplotlib;
print “After import matplotlib.”

the first print statement succeeds but the second one fails; the server log shows a crash of:

Before import matplotlib.Traceback (most recent call last):
File “/home/jhayward/bintmp/test.py”, line 5, in
import matplotlib;
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 639, in
rcParams = rc_params()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 562, in rc_params
fname = matplotlib_fname()
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 513, in matplotlib_fname
fname = os.path.join(get_configdir(), ‘matplotlibrc’)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 207, in wrapper
ret = func(*args, **kwargs)
File “/usr/lib64/python2.5/site-packages/matplotlib/init.py”, line 403, in _get_configdir
raise RuntimeError(“Failed to create %s/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data”%h)
RuntimeError: Failed to create /root/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

I think this error is somewhat misleading; it persisted after I ran a “chmod -R 1777 /root/.matplotlib”.

What is the proper way to adjust things so matplotlib will be happy with its .matplotlib directory?

–
– Jonathan Hayward, christos.jonathan.hayward@…287…

** To see an award-winning website with stories, essays, artwork,
** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?
++ You can now get my books from http://CJSHayward.com