Re: [matplotlib-devel] Plans for matplotlib py3k/final release (and impact on Debian)

[Christoph G. <cg...@uc...>]

On 6/7/2012 1:01 PM, John Hunter wrote:
> On Thu, Jun 7, 2012 at 2:57 PM, Christoph Gohlke <cg...@uc...> wrote:
>
>> Is there time for another release candidate?
>>
>> With the latest github branch on win-amd64-py2.7 I get both, a segfault
>> and a test failure in "matplotlib.tests.test_text.test_font_styles.test".
>
> If you are getting a segfault, is there on the latest branch, would it
> make sense to do an RC?  It seems like we would want to fix the
> segfault first.  Can you give us more details on the segfault, eg
> backend, conditions to reproduce, etc?
>
>

There have been many changes since the last rc. The crash is probably 
related to very recent changes. Ideally the segfault should be fixed 
before rc2.


The crash on win-amd64-py2.7 is with the PDF backend:

Python 2.7.3 (default, Apr 10 2012, 23:24:47) [MSC v.1500 64 bit 
(AMD64)] on win32
>>> import matplotlib as mpl
>>> mpl.use("agg")
>>>mpl.test(verbosity=2)
<snip>
matplotlib.tests.test_mathtext.mathtext_stixsans_65_test.test ... ok
matplotlib.tests.test_mathtext.mathtext_stixsans_65_test.test ... ok
matplotlib.tests.test_mathtext.mathtext_stixsans_65_test.test ... 
KNOWNFAIL: Cannot compare svg files on this system
matplotlib.tests.test_mathtext.test_fontinfo ... ok
matplotlib.tests.test_text.test_antialiasing.test ... ok
matplotlib.tests.test_text.test_font_styles.test ... ok
matplotlib.tests.test_text.test_font_styles.test ...
crash


On win32-py2.7 the test fails but doesn't crash. The failure is that 
bold font styles are not rendered bold:

Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit 
(Intel)] on win32
<snip>
======================================================================
FAIL: matplotlib.tests.test_text.test_font_styles.test
----------------------------------------------------------------------
Traceback (most recent call last):
   File "X:\Python27\lib\site-packages\nose\case.py", line 197, in runTest
     self.test(*self.arg)
   File 
"X:\Python27\lib\site-packages\matplotlib\testing\decorators.py", line 
36, in failer
     result = f(*args, **kwargs)
   File 
"X:\Python27\lib\site-packages\matplotlib\testing\decorators.py", line 
140, in do_test
     '(RMS %(rms).3f)'%err)
ImageComparisonFailure: images not close: 
test\result_images\test_text\font_styles.png vs.
  test\result_images\test_text\expected-font_styles.png (RMS 47.138)

======================================================================
FAIL: matplotlib.tests.test_text.test_font_styles.test
----------------------------------------------------------------------
Traceback (most recent call last):
   File "X:\Python27\lib\site-packages\nose\case.py", line 197, in runTest
     self.test(*self.arg)
   File 
"X:\Python27\lib\site-packages\matplotlib\testing\decorators.py", line 
36, in failer
     result = f(*args, **kwargs)
   File 
"X:\Python27\lib\site-packages\matplotlib\testing\decorators.py", line 
140, in do_test
     '(RMS %(rms).3f)'%err)
ImageComparisonFailure: images not close: 
test\result_images\test_text\font_styles_pdf.png vs.
  test\result_images\test_text\expected-font_styles_pdf.png (RMS 23.409)

----------------------------------------------------------------------
Ran 1068 tests in 231.978s

FAILED (KNOWNFAIL=268, failures=2)


I'll file a ticket if I can't fix it using a debug build.

Christoph