matplotlib-users Mailing List for matplotlib

Thank you Christoph, and thank you for the extensive package builds!
I did update to matplotlib 1.5 and it seems to address the error; I get all
of my plots and they look correct, though I did get the following warning
on Python 2.7.10:
[c:\python\dev\homework1] python PHYS404-homework1-problem3-rev05.py
C:\Python27\lib\site-packages\numpy\core\fromnumeric.py:2648:
RuntimeWarning: invalid value encountered in rint
 return round(decimals, out)
... and the same on CPython 3.4 (do you think 3.5 is stable enough to move
to?):
[c:\python\dev\homework1] python PHYS404-homework1-problem3-rev05.py
C:\Python34\lib\site-packages\numpy\core\fromnumeric.py:2648:
RuntimeWarning: invalid value encountered in rint
 return round(decimals, out)
Many thanks again,
Bobby
On Thu, Sep 17, 2015 at 11:23 PM, <
mat...@li...> wrote:
> Today's Topics:
>
> 1. Re: bug report (Christoph Gohlke)
> 2. Re: bug report (Bobby Wilkins)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: 2015年9月17日 10:30:30 -0700
> From: Christoph Gohlke <cg...@uc...>
> Subject: Re: [Matplotlib-users] bug report
> To: mat...@li...
> Message-ID: <55F...@uc...>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> 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
>
>

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 <bob...@gm...>
wrote:
> I installed CPython 2.7.10, and the appropriate versions of the same
> packages, and I still get the same error:
>

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年9月6日.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 <module>
 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 <bob...@gm...>
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 <sm...@fu...>
> 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...@gm...> 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...@gm...>
>> wrote:
>> > What version of numpy do you have installed?
>> >
>> > On Wed, Sep 16, 2015 at 5:35 AM, Bobby Wilkins <bob...@gm...>
>> 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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