Status of pylab example loadrec.py

Hi all,

The example loadrec.py illustrates the usage of PyExcelerator.

However it seems PyExcelerator is no longer maintained

Is it planned to adapt the example wrt xlwt ?

http://pypi.python.org/pypi/xlwt

Cheers,
            Nils

True it is no longer maintained, but it does work. We are looking into xlwt (I wasn’t aware of it until today when you forwarded the message)

JDH

···

On Wed, Dec 10, 2008 at 3:28 PM, Nils Wagner <nwagner@…425…> wrote:

Hi all,

The example loadrec.py illustrates the usage of

PyExcelerator.

However it seems PyExcelerator is no longer maintained

Is it planned to adapt the example wrt xlwt ?

http://pypi.python.org/pypi/xlwt

I’ve added support for xlwt in svn r6560 – give it a whirl

JDH

···

On Wed, Dec 10, 2008 at 4:26 PM, John Hunter <jdh2358@…149…> wrote:

Is it planned to adapt the example wrt xlwt ?

http://pypi.python.org/pypi/xlwt

True it is no longer maintained, but it does work. We are looking into xlwt (I wasn’t aware of it until today when you forwarded the message)

Hi John,

I have upgraded to r6561.

python test.py --verbose-helpful
$HOME=/data/home/nwagner
CONFIGDIR=/data/home/nwagner/.matplotlib
matplotlib data path /data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/mpl-data
loaded rc file /data/home/nwagner/.matplotlib/matplotlibrc
Traceback (most recent call last):
   File "test.py", line 1, in <module>
     import matplotlib.mlab as mlab
   File "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py", line 700, in <module>
     rcParams['text.usetex'] = checkdep_usetex(rcParams['text.usetex'])
   File "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py", line 367, in checkdep_usetex
     dvipng_v = checkdep_dvipng()
   File "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py", line 261, in checkdep_dvipng
     stderr=subprocess.PIPE)
   File "/data/home/nwagner/local/lib/python2.5/subprocess.py", line 593, in __init__
     errread, errwrite)
   File "/data/home/nwagner/local/lib/python2.5/subprocess.py", line 1079, in _execute_child
     raise child_exception
OSError: [Errno 2] No such file or directory
  
Any idea ?

             Nils

···

On Wed, 10 Dec 2008 21:11:12 -0600 "John Hunter" <jdh2358@...149...> wrote:

On Wed, Dec 10, 2008 at 4:26 PM, John Hunter ><jdh2358@...149...> wrote:

Is it planned to adapt the example wrt xlwt ?

http://pypi.python.org/pypi/xlwt

True it is no longer maintained, but it does work. We are looking into
xlwt (I wasn't aware of it until today when you forwarded the message)

I've added support for xlwt in svn r6560 -- give it a whirl

JDH

Works for me if I disable text.usetex in ~/.matplotlib/matplotlibrc, but for what reason ?

### LaTeX customizations. See http://www.scipy.org/Wiki/Cookbook/Matplotlib/UsingTex
#text.usetex : True # use latex for all text handling. The following fonts

Nils

···

On Thu, 11 Dec 2008 09:13:02 +0100 "Nils Wagner" <nwagner@...425...> wrote:

On Wed, 10 Dec 2008 21:11:12 -0600 > "John Hunter" <jdh2358@...149...> wrote:

On Wed, Dec 10, 2008 at 4:26 PM, John Hunter >><jdh2358@...149...> wrote:

Is it planned to adapt the example wrt xlwt ?

http://pypi.python.org/pypi/xlwt

True it is no longer maintained, but it does work. We are looking into
xlwt (I wasn't aware of it until today when you forwarded the message)

I've added support for xlwt in svn r6560 -- give it a whirl

JDH

Hi John,

I have upgraded to r6561.

python test.py --verbose-helpful
$HOME=/data/home/nwagner
CONFIGDIR=/data/home/nwagner/.matplotlib
matplotlib data path /data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/mpl-data
loaded rc file /data/home/nwagner/.matplotlib/matplotlibrc
Traceback (most recent call last):
  File "test.py", line 1, in <module>
    import matplotlib.mlab as mlab
  File "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py", line 700, in <module>
    rcParams['text.usetex'] = checkdep_usetex(rcParams['text.usetex'])
  File "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py", line 367, in checkdep_usetex
    dvipng_v = checkdep_dvipng()
  File "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py", line 261, in checkdep_dvipng
    stderr=subprocess.PIPE)
  File "/data/home/nwagner/local/lib/python2.5/subprocess.py", line 593, in __init__
    errread, errwrite)
  File "/data/home/nwagner/local/lib/python2.5/subprocess.py", line 1079, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

Any idea ?

            Nils

Hi Nils. I think I fixed the issue causing the traceback with r6563. Can
you please update and try again with text.usetex enabled?

My guess is that you don't have dvipng installed, which was causing the
detection check to throw a traceback rather than return a value
signifying undetected. So, enabling usetex should again trigger the
check, but hopefully this time it will fail gracefully rather than crashing.

-Andrew

Nils Wagner wrote:

···

On Thu, 11 Dec 2008 09:13:02 +0100 > "Nils Wagner" <nwagner@...425...> wrote:

On Wed, 10 Dec 2008 21:11:12 -0600 >> "John Hunter" <jdh2358@...149...> wrote:

On Wed, Dec 10, 2008 at 4:26 PM, John Hunter >>> <jdh2358@...149...> wrote:

Is it planned to adapt the example wrt xlwt ?

http://pypi.python.org/pypi/xlwt

True it is no longer maintained, but it does work. We
are looking into
xlwt (I wasn't aware of it until today when you
forwarded the message)

I've added support for xlwt in svn r6560 -- give it a
whirl

JDH

Hi John,

I have upgraded to r6561.

python test.py --verbose-helpful
$HOME=/data/home/nwagner
CONFIGDIR=/data/home/nwagner/.matplotlib
matplotlib data path
/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/mpl-data
loaded rc file
/data/home/nwagner/.matplotlib/matplotlibrc
Traceback (most recent call last):
  File "test.py", line 1, in <module>
    import matplotlib.mlab as mlab
  File
"/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py",
line 700, in <module>
    rcParams['text.usetex'] =
checkdep_usetex(rcParams['text.usetex'])
  File
"/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py",
line 367, in checkdep_usetex
    dvipng_v = checkdep_dvipng()
  File
"/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py",
line 261, in checkdep_dvipng
    stderr=subprocess.PIPE)
  File
"/data/home/nwagner/local/lib/python2.5/subprocess.py",
line 593, in __init__
    errread, errwrite)
  File
"/data/home/nwagner/local/lib/python2.5/subprocess.py",
line 1079, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

Any idea ?

            Nils

Works for me if I disable text.usetex in
~/.matplotlib/matplotlibrc, but for what reason ?

### LaTeX customizations. See
http://www.scipy.org/Wiki/Cookbook/Matplotlib/UsingTex
#text.usetex : True # use latex for all text
handling. The following fonts

Nils

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Hi Nils. I think I fixed the issue causing the traceback with r6563. Can
you please update and try again with text.usetex enabled?

My guess is that you don't have dvipng installed, which was causing the
detection check to throw a traceback rather than return a value
signifying undetected. So, enabling usetex should again trigger the
check, but hopefully this time it will fail gracefully rather than crashing.

-Andrew

  Hi Andrew,

Thank you very much !
Works for me.

import matplotlib.mlab as mlab

/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/__init__.py:371: UserWarning: matplotlibrc text.usetex can not be used with *Agg backend unless dvipng-1.5 or later is installed on your system
   warnings.warn( 'matplotlibrc text.usetex can not be used with *Agg '

Cheers,
             Nils

···

On Thu, 11 Dec 2008 10:33:20 -0800 Andrew Straw <strawman@...36...> wrote: