On 08/24/2011 01:41 PM, Michael Droettboom wrote:
> On 08/24/2011 11:07 AM, Grahame Bowland wrote:
>
>> Another thing - I think I've found a str/bytes bug which I can't
>> figure it out. I've attached the code, if I run it on my machine I get
>> this output:
>>
>> Traceback (most recent call last):
>> File "crash.py", line 24, in<module>
>> fig.canvas.print_figure(open('test.png', 'wb'), bbox_inches='tight')
>> File
>> "/opt/shrubbery/lib/python3.2/site-packages/matplotlib/backend_bases.py",
>> line 1951, in print_figure
>> bbox_inches = self.figure.get_tightbbox(renderer)
>> File "/opt/shrubbery/lib/python3.2/site-packages/matplotlib/figure.py",
>> line 1292, in get_tightbbox
>> for ax in self.axes:
>> File "/opt/shrubbery/lib/python3.2/site-packages/matplotlib/figure.py",
>> line 290, in _get_axes
>> return self._axstack.as_list()
>> File "/opt/shrubbery/lib/python3.2/site-packages/matplotlib/figure.py",
>> line 59, in as_list
>> ia_list = [a for k, a in self._elements]
>> File "/opt/shrubbery/lib/python3.2/site-packages/matplotlib/figure.py",
>> line 59, in<listcomp>
>> ia_list = [a for k, a in self._elements]
>> TypeError: string argument expected, got 'bytes'
>>
>> It's definitely something to do with the bbox_inches='tight' argument,
>> if I take that out everything works. Using the debugger I can't see
>> anything in any stack frame that explains the traceback - really odd!
>>
> Can you file an issue for this in the matplotlib-py3 github project?
> I'm busy getting the matplotlib 1.1.x release finished up at the moment,
> and don't have a working environment for Python 3 right now. I'd hate
> for this bug to fall through the cracks.
>
Indeed a confusing bug -- errors were not being returned correctly from
the PNG extension.
Can you confirm that
https://github.com/matplotlib/matplotlib-py3/commit/927acf856bb321e22938846bb39f8b32d90172d4
resolves the issue?
Mike
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