Issues with PNG creation

Hello All,

    Iv run into a strange issue involving outputting a graph to a png format. Anytime i try to output a png file the python interpreter crashes. However when using other formats (such as pdf or svg) there are no issues with the output. I am running python 2.5.4 x86 on Windows 2008 Server x64 sp1. I have included the error information and some short examples of code that i am attempting to use to output the data to an image format below. Any help i could get with this would be great.

Thanks,
Ben

Works Fine

···

=====================================
>>> import matplotlib >>> matplotlib.use("Agg")
>>> import pylab
>>> pylab.plot([0,1,2,3],[0,1,2,3])
[<matplotlib.lines.Line2D object at 0x03228C10>]
>>> pylab.savefig("test.svg")

Fails with crash error below

>>> import matplotlib
>>> matplotlib.use("Agg")
>>> import pylab
>>> pylab.plot([0,1,2,3],[0,1,2,3])
[<matplotlib.lines.Line2D object at 0x03228C10>]
>>> pylab.savefig("test.png")
Problem signature:
  Problem Event Name: APPCRASH
  Application Name: python.exe
  Application Version: 0.0.0.0
  Application Timestamp: 4625bfee
  Fault Module Name: ntdll.dll
  Fault Module Version: 6.0.6001.18000
  Fault Module Timestamp: 4791a783
  Exception Code: c0000005
  Exception Offset: 0003dbba
  OS Version: 6.0.6001.2.1.0.272.7
  Locale ID: 1033
  Additional Information 1: c11a
  Additional Information 2: 18d232e4d8435ebf655f59efa077f117
  Additional Information 3: 3cc0
  Additional Information 4: 2bc86780a51643567bc39fde6d5f1f8a

matplotlib version? what installer did you use? Did you do a clean install?

See

  http://matplotlib.sourceforge.net/faq/troubleshooting_faq.html#obtaining-matplotlib-version
  http://matplotlib.sourceforge.net/faq/troubleshooting_faq.html#report-a-problem
  http://matplotlib.sourceforge.net/faq/installing_faq.html#cleanly-rebuild-and-reinstall-everything

JDH

···

On Thu, Sep 17, 2009 at 1:54 PM, Benjamin Welton <benjamin.r.welton@...2788...> wrote:

Hello All,

Iv run into a strange issue involving outputting a graph to a png
format. Anytime i try to output a png file the python interpreter
crashes. However when using other formats (such as pdf or svg) there
are no issues with the output. I am running python 2.5.4 x86 on Windows
2008 Server x64 sp1. I have included the error information and some
short examples of code that i am attempting to use to output the data to
an image format below. Any help i could get with this would be great.