bug report

OS: Windows 8.1 Pro

matplotlib version: 1.4.3

where obtained: http://www.lfd.uci.edu/~gohlke/pythonlibs/

customizations: none

Sample Program: attached py file; this is a Physics homework problem; I have the answers I need, but would like to fix the errors to be able to label all lines.

Debug output in attached output.txt file

If you uncomment line 180, the error is reported as if it came from that line even though there is no float64 on that line (savefig). If commented, it does not report a line from my .py file…

If you make line 170 read as follows, the error goes away:

if (maxTerm<32):

This suggests to me that the additional labels for the 32, 64, 128, and 154 term runs is what is triggering the bug, but I cannot figure out what it is.

Also, separate note, just about any time I make figures, when closing the last figure I get a python.exe app crash and this message:

alloc: invalid block: 00000000044E7680: 0 d

Thank you for any help,

Bobby

PHYS404-homework1-problem3-rev05.py (7.98 KB)

output.txt (7.88 KB)

What version of numpy do you have installed?

···

On Wed, Sep 16, 2015 at 5:35 AM, Bobby Wilkins <bobby.wilkins@…287…> wrote:

OS: Windows 8.1 Pro

matplotlib version: 1.4.3

where obtained: http://www.lfd.uci.edu/~gohlke/pythonlibs/

customizations: none

Sample Program: attached py file; this is a Physics homework problem; I have the answers I need, but would like to fix the errors to be able to label all lines.

Debug output in attached output.txt file

If you uncomment line 180, the error is reported as if it came from that line even though there is no float64 on that line (savefig). If commented, it does not report a line from my .py file…

If you make line 170 read as follows, the error goes away:

if (maxTerm<32):

This suggests to me that the additional labels for the 32, 64, 128, and 154 term runs is what is triggering the bug, but I cannot figure out what it is.

Also, separate note, just about any time I make figures, when closing the last figure I get a python.exe app crash and this message:

alloc: invalid block: 00000000044E7680: 0 d

Thank you for any help,

Bobby


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Btw, I can’t reproduce the problem using matplotlib master, numpy master and linux. I know it isn’t at all similar to your setup, but it is a data point.

···

On Wed, Sep 16, 2015 at 9:43 AM, Benjamin Root <ben.v.root@…287…> wrote:

What version of numpy do you have installed?

On Wed, Sep 16, 2015 at 5:35 AM, Bobby Wilkins <bobby.wilkins@…2015…87…> wrote:

OS: Windows 8.1 Pro

matplotlib version: 1.4.3

where obtained: http://www.lfd.uci.edu/~gohlke/pythonlibs/

customizations: none

Sample Program: attached py file; this is a Physics homework problem; I have the answers I need, but would like to fix the errors to be able to label all lines.

Debug output in attached output.txt file

If you uncomment line 180, the error is reported as if it came from that line even though there is no float64 on that line (savefig). If commented, it does not report a line from my .py file…

If you make line 170 read as follows, the error goes away:

if (maxTerm<32):

This suggests to me that the additional labels for the 32, 64, 128, and 154 term runs is what is triggering the bug, but I cannot figure out what it is.

Also, separate note, just about any time I make figures, when closing the last figure I get a python.exe app crash and this message:

alloc: invalid block: 00000000044E7680: 0 d

Thank you for any help,

Bobby


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Works fine for

{{{
: python
Python 2.7.10 (default, Sep 15 2015, 11:26:42)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
/Users/smithsp/.pyhistory

import matplotlib
matplotlib.__version__

'1.4.3'

import numpy
numpy.__version__

'1.9.2'

matplotlib.get_backend()

u’MacOSX'
}}}

All are obtained through MacPorts on OSX 10.9.5.

-Sterling

···

On Sep 16, 2015, at 6:50AM, Benjamin Root <ben.v.root@...287...> wrote:

Btw, I can't reproduce the problem using matplotlib master, numpy master and linux. I know it isn't at all similar to your setup, but it is a data point.

On Wed, Sep 16, 2015 at 9:43 AM, Benjamin Root <ben.v.root@...287...> wrote:
What version of numpy do you have installed?

On Wed, Sep 16, 2015 at 5:35 AM, Bobby Wilkins <bobby.wilkins@...287...> wrote:
OS: Windows 8.1 Pro

matplotlib version: 1.4.3

where obtained: http://www.lfd.uci.edu/~gohlke/pythonlibs/

customizations: none

Sample Program: attached py file; this is a Physics homework problem; I have the answers I need, but would like to fix the errors to be able to label all lines.

Debug output in attached output.txt file

If you uncomment line 180, the error is reported as if it came from that line even though there is no float64 on that line (savefig). If commented, it does not report a line from my .py file...

If you make line 170 read as follows, the error goes away:

if (maxTerm<32):

This suggests to me that the additional labels for the 32, 64, 128, and 154 term runs is what is triggering the bug, but I cannot figure out what it is.

Also, separate note, just about any time I make figures, when closing the last figure I get a python.exe app crash and this message:

alloc: invalid block: 00000000044E7680: 0 d

Thank you for any help,
Bobby

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Thank you all.

I am using Python 3.4.3.

I meant to include a pip list:

Assimulo (2.8)
decorator (4.0.2)
gmpy2 (2.0.7)
ipykernel (4.0.3)
ipython (4.0.0)
ipython-genutils (0.1.0)
ipywidgets (4.0.2)
Jinja2 (2.8)
jsonschema (2.5.1)
jupyter-client (4.0.0)
jupyter-core (4.0.4)
MarkupSafe (0.23)
matplotlib (1.4.3)
mistune (0.7.1)
nbconvert (4.0.0)
nbformat (4.0.0)
nose (1.3.7)
notebook (4.0.4)
numpy (1.9.2)
pandas (0.16.2)
path.py (8.1)
pickleshare (0.5)
pip (7.1.2)
Pygments (2.0.2)
pyparsing (2.0.3)
pyreadline (2.0)
python-dateutil (2.4.2)
pytz (2015.4)
pyzmq (14.7.0)
requests (2.7.0)
scipy (0.16.0)
setuptools (18.2)
simplegeneric (0.8.1)
six (1.9.0)
sympy (0.7.6)
testpath (0.2)
tornado (4.2.1)
traitlets (4.0.0)

So, if the program works for Python 2.7 but not 3.4.3, maybe that is the problem? Let me try to install Python 2.7 tonight and see what that does.

···

On Wed, Sep 16, 2015 at 8:39 AM, Sterling Smith <smithsp@…3304…> wrote:

Works fine for

{{{

: python

Python 2.7.10 (default, Sep 15 2015, 11:26:42)

[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin

Type “help”, “copyright”, “credits” or “license” for more information.

/Users/smithsp/.pyhistory

import matplotlib

matplotlib.version

‘1.4.3’

import numpy

numpy.version

‘1.9.2’

matplotlib.get_backend()

u’MacOSX’

}}}

All are obtained through MacPorts on OSX 10.9.5.

-Sterling

On Sep 16, 2015, at 6:50AM, Benjamin Root <ben.v.root@…287…> wrote:

Btw, I can’t reproduce the problem using matplotlib master, numpy master and linux. I know it isn’t at all similar to your setup, but it is a data point.

On Wed, Sep 16, 2015 at 9:43 AM, Benjamin Root <ben.v.root@…287…> wrote:

What version of numpy do you have installed?

On Wed, Sep 16, 2015 at 5:35 AM, Bobby Wilkins <bobby.wilkins@…287…> wrote:

OS: Windows 8.1 Pro

matplotlib version: 1.4.3

where obtained: http://www.lfd.uci.edu/~gohlke/pythonlibs/

customizations: none

Sample Program: attached py file; this is a Physics homework problem; I have the answers I need, but would like to fix the errors to be able to label all lines.

Debug output in attached output.txt file

If you uncomment line 180, the error is reported as if it came from that line even though there is no float64 on that line (savefig). If commented, it does not report a line from my .py file…

If you make line 170 read as follows, the error goes away:

if (maxTerm<32):

This suggests to me that the additional labels for the 32, 64, 128, and 154 term runs is what is triggering the bug, but I cannot figure out what it is.

Also, separate note, just about any time I make figures, when closing the last figure I get a python.exe app crash and this message:

alloc: invalid block: 00000000044E7680: 0 d

Thank you for any help,

Bobby


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Matplotlib-users@lists.sourceforge.net

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


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I can reproduce the AttributeError on all Python versions and the crash (in Python's _tkinter.pyd extension) on Python 3.4.

As a workaround you might try to upgrade to matplotlib 1.5, which seems to work for me.

Christoph

···

On 9/17/2015 6:46 AM, Bobby Wilkins wrote:

Thank you all.

I am using Python 3.4.3.

I meant to include a pip list:

Assimulo (2.8)
decorator (4.0.2)
gmpy2 (2.0.7)
ipykernel (4.0.3)
ipython (4.0.0)
ipython-genutils (0.1.0)
ipywidgets (4.0.2)
Jinja2 (2.8)
jsonschema (2.5.1)
jupyter-client (4.0.0)
jupyter-core (4.0.4)
MarkupSafe (0.23)
matplotlib (1.4.3)
mistune (0.7.1)
nbconvert (4.0.0)
nbformat (4.0.0)
nose (1.3.7)
notebook (4.0.4)
numpy (1.9.2)
pandas (0.16.2)
path.py (8.1)
pickleshare (0.5)
pip (7.1.2)
Pygments (2.0.2)
pyparsing (2.0.3)
pyreadline (2.0)
python-dateutil (2.4.2)
pytz (2015.4)
pyzmq (14.7.0)
requests (2.7.0)
scipy (0.16.0)
setuptools (18.2)
simplegeneric (0.8.1)
six (1.9.0)
sympy (0.7.6)
testpath (0.2)
tornado (4.2.1)
traitlets (4.0.0)

So, if the program works for Python 2.7 but not 3.4.3, maybe that is the
problem? Let me try to install Python 2.7 tonight and see what that does.

On Wed, Sep 16, 2015 at 8:39 AM, Sterling Smith <smithsp@…3304… > <mailto:smithsp@…3304…>> wrote:

    Works fine for

    {{{
      : python
    Python 2.7.10 (default, Sep 15 2015, 11:26:42)
    [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin
    Type "help", "copyright", "credits" or "license" for more information.
    /Users/smithsp/.pyhistory
    >>> import matplotlib
    >>> matplotlib.__version__
    '1.4.3'
    >>> import numpy
    >>> numpy.__version__
    '1.9.2'
    >>> matplotlib.get_backend()
    u’MacOSX'
    }}}

    All are obtained through MacPorts on OSX 10.9.5.

    -Sterling

    On Sep 16, 2015, at 6:50AM, Benjamin Root <ben.v.root@…287… > <mailto:ben.v.root@…287…>> wrote:

    > Btw, I can't reproduce the problem using matplotlib master, numpy master and linux. I know it isn't at all similar to your setup, but it is a data point.
    >
    > On Wed, Sep 16, 2015 at 9:43 AM, Benjamin Root <ben.v.root@…1896… <mailto:ben.v.root@…287…>> wrote:
    > What version of numpy do you have installed?
    >
    > On Wed, Sep 16, 2015 at 5:35 AM, Bobby Wilkins <bobby.wilkins@…1003…7… <mailto:bobby.wilkins@…287…>> wrote:
    > OS: Windows 8.1 Pro
    >
    > matplotlib version: 1.4.3
    >
    > where obtained:http://www.lfd.uci.edu/~gohlke/pythonlibs/
    <http://www.lfd.uci.edu/~gohlke/pythonlibs/>
    >
    > customizations: none
    >
    > Sample Program: attached py file; this is a Physics homework problem; I have the answers I need, but would like to fix the errors to be able to label all lines.
    >
    > Debug output in attached output.txt file
    >
    > If you uncomment line 180, the error is reported as if it came from that line even though there is no float64 on that line (savefig). If commented, it does not report a line from my .py file…
    >
    > If you make line 170 read as follows, the error goes away:
    >
    > if (maxTerm<32):
    >
    > This suggests to me that the additional labels for the 32, 64, 128, and 154 term runs is what is triggering the bug, but I cannot figure out what it is.
    >
    > Also, separate note, just about any time I make figures, when closing the last figure I get a python.exe app crash and this message:
    >
    > alloc: invalid block: 00000000044E7680: 0 d
    >
    > Thank you for any help,
    > Bobby
    >
    > ------------------------------------------------------------------------------
    > Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
    > Get real-time metrics from all of your servers, apps and tools
    > in one place.
    > SourceForge users - Click here to start your Free Trial of Datadog now!
    >http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140
    > _______________________________________________
    > Matplotlib-users mailing list
    >Matplotlib-users@lists.sourceforge.net
    <mailto:Matplotlib-users@lists.sourceforge.net>
    >https://lists.sourceforge.net/lists/listinfo/matplotlib-users
    >
    > ------------------------------------------------------------------------------
    > Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
    > Get real-time metrics from all of your servers, apps and tools
    > in one place.
    > SourceForge users - Click here to start your Free Trial of Datadog now!
    >http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140_______________________________________________
    > Matplotlib-users mailing list
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    <mailto:Matplotlib-users@lists.sourceforge.net>
    >https://lists.sourceforge.net/lists/listinfo/matplotlib-users

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I installed CPython 2.7.10, and the appropriate versions of the same packages, and I still get the same error:

[c:\python\dev\homework1] pip list
backports.ssl-match-hostname (3.4.0.2)
certifi (2015.9.6.2)
decorator (4.0.2)
functools32 (3.2.3.post2)
ipykernel (4.0.3)
ipyparallel (4.0.2)
ipython (4.0.0)
ipython-genutils (0.1.0)
ipywidgets (4.0.2)
Jinja2 (2.8)
jsonschema (2.5.1)
jupyter (1.0.0)
jupyter-client (4.0.0)
jupyter-console (4.0.2)
jupyter-core (4.0.5)
MarkupSafe (0.23)
matplotlib (1.4.3)
mistune (0.7.1)
nbconvert (4.0.0)
nbformat (4.0.0)
notebook (4.0.4)
numpy (1.9.2)
path.py (8.1.1)
pickleshare (0.5)
Pillow (2.9.0)
pip (7.1.2)
Pygments (2.0.2)
pyparsing (2.0.3)
pyreadline (2.1)
python-dateutil (2.4.2)
pytz (2015.4)
pyzmq (14.7.0)
qtconsole (4.0.0)
scipy (0.16.0)
setuptools (18.3)
simplegeneric (0.8.1)
six (1.9.0)
tornado (4.2.1)
traitlets (4.0.0)

Note: the program does not error if last “if” in the source reads:

if (maxTerm<32)#: or ((myFigBase<4) and (maxTerm<64)):

If I change it to something like this:

if (maxTerm<32) or ((myFigBase<4) and (maxTerm<64)):

… I get the below error:

[c:\python\dev\homework1] python PHYS404-homework1-problem3-rev05.py
Traceback (most recent call last):
File “PHYS404-homework1-problem3-rev05.py”, line 196, in
graphMyetoNegX(mySlices,myRuns,0,1,0)
File “PHYS404-homework1-problem3-rev05.py”, line 185, in graphMyetoNegX
plt.savefig(figStrName+str(myFigBase*3+3).zfill(2)+figStrExt,bbox_inches=‘tight’)
File “C:\Python27\lib\site-packages\matplotlib\pyplot.py”, line 577, in savefig
res = fig.savefig(*args, **kwargs)
File “C:\Python27\lib\site-packages\matplotlib\figure.py”, line 1476, in savefig
self.canvas.print_figure(*args, **kwargs)
File “C:\Python27\lib\site-packages\matplotlib\backend_bases.py”, line 2158, in print_figure
**kwargs)
File “C:\Python27\lib\site-packages\matplotlib\backends\backend_agg.py”, line 521, in print_png
FigureCanvasAgg.draw(self)
File “C:\Python27\lib\site-packages\matplotlib\backends\backend_agg.py”, line 469, in draw
self.figure.draw(self.renderer)
File “C:\Python27\lib\site-packages\matplotlib\artist.py”, line 59, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File “C:\Python27\lib\site-packages\matplotlib\figure.py”, line 1085, in draw
func(*args)
File “C:\Python27\lib\site-packages\matplotlib\artist.py”, line 59, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File “C:\Python27\lib\site-packages\matplotlib\axes_base.py”, line 2110, in draw
a.draw(renderer)
File “C:\Python27\lib\site-packages\matplotlib\artist.py”, line 59, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File “C:\Python27\lib\site-packages\matplotlib\text.py”, line 642, in draw
ismath=ismath, mtext=mtext)
File “C:\Python27\lib\site-packages\matplotlib\backends\backend_agg.py”, line 206, in draw_text
font.get_image(), np.round(x - xd), np.round(y + yd) + 1, angle, gc)
File “C:\Python27\lib\site-packages\numpy\core\fromnumeric.py”, line 2648, in round_
return round(decimals, out)
File “C:\Python27\lib\site-packages\numpy\ma\core.py”, line 4903, in round
result._mask = self._mask
AttributeError: ‘numpy.float64’ object has no attribute ‘_mask’

···

On Thu, Sep 17, 2015 at 6:46 AM, Bobby Wilkins <bobby.wilkins@…287…> wrote:

Thank you all.

I am using Python 3.4.3.

I meant to include a pip list:

Assimulo (2.8)
decorator (4.0.2)
gmpy2 (2.0.7)
ipykernel (4.0.3)
ipython (4.0.0)
ipython-genutils (0.1.0)
ipywidgets (4.0.2)
Jinja2 (2.8)
jsonschema (2.5.1)
jupyter-client (4.0.0)
jupyter-core (4.0.4)
MarkupSafe (0.23)
matplotlib (1.4.3)
mistune (0.7.1)
nbconvert (4.0.0)
nbformat (4.0.0)
nose (1.3.7)
notebook (4.0.4)
numpy (1.9.2)
pandas (0.16.2)
path.py (8.1)
pickleshare (0.5)
pip (7.1.2)
Pygments (2.0.2)
pyparsing (2.0.3)
pyreadline (2.0)
python-dateutil (2.4.2)
pytz (2015.4)
pyzmq (14.7.0)
requests (2.7.0)
scipy (0.16.0)
setuptools (18.2)
simplegeneric (0.8.1)
six (1.9.0)
sympy (0.7.6)
testpath (0.2)
tornado (4.2.1)
traitlets (4.0.0)

So, if the program works for Python 2.7 but not 3.4.3, maybe that is the problem? Let me try to install Python 2.7 tonight and see what that does.

On Wed, Sep 16, 2015 at 8:39 AM, Sterling Smith <smithsp@…3304…> wrote:

Works fine for

{{{

: python

Python 2.7.10 (default, Sep 15 2015, 11:26:42)

[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin

Type “help”, “copyright”, “credits” or “license” for more information.

/Users/smithsp/.pyhistory

import matplotlib

matplotlib.version

‘1.4.3’

import numpy

numpy.version

‘1.9.2’

matplotlib.get_backend()

u’MacOSX’

}}}

All are obtained through MacPorts on OSX 10.9.5.

-Sterling

On Sep 16, 2015, at 6:50AM, Benjamin Root <ben.v.root@…287…> wrote:

Btw, I can’t reproduce the problem using matplotlib master, numpy master and linux. I know it isn’t at all similar to your setup, but it is a data point.

On Wed, Sep 16, 2015 at 9:43 AM, Benjamin Root <ben.v.root@…287…> wrote:

What version of numpy do you have installed?

On Wed, Sep 16, 2015 at 5:35 AM, Bobby Wilkins <bobby.wilkins@…287…> wrote:

OS: Windows 8.1 Pro

matplotlib version: 1.4.3

where obtained: http://www.lfd.uci.edu/~gohlke/pythonlibs/

customizations: none

Sample Program: attached py file; this is a Physics homework problem; I have the answers I need, but would like to fix the errors to be able to label all lines.

Debug output in attached output.txt file

If you uncomment line 180, the error is reported as if it came from that line even though there is no float64 on that line (savefig). If commented, it does not report a line from my .py file…

If you make line 170 read as follows, the error goes away:

if (maxTerm<32):

This suggests to me that the additional labels for the 32, 64, 128, and 154 term runs is what is triggering the bug, but I cannot figure out what it is.

Also, separate note, just about any time I make figures, when closing the last figure I get a python.exe app crash and this message:

alloc: invalid block: 00000000044E7680: 0 d

Thank you for any help,

Bobby


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Get real-time metrics from all of your servers, apps and tools

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One more note: changing the plot type from loglog to just plot, the errors also go away.

···

On Thu, Sep 17, 2015 at 11:23 PM, Bobby Wilkins <bobby.wilkins@…287…> wrote:

I installed CPython 2.7.10, and the appropriate versions of the same packages, and I still get the same error: