[pygame] intermittant fails of unit test pixelarray_test.PixelArrayTest with Python 2.4

[Lenard Lindstrom <len-l@xxxxxxxxx>]

I was trying out one of my custom Windows builds of Pygame 1.8.0rc3 rev 
1126 with Python 2.4. Using run_tests.py to check the Python 2.4 version 
before release I found the following fail:

................................................................................
........F.........................
======================================================================
FAIL: test_contains (pixelarray_test.PixelArrayTest)
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Traceback (most recent call last):
 File "test\pixelarray_test.py", line 149, in test_contains
   self.assertFalse (0x0000ff in ar)
AssertionError

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I traced it to the case where bpp is 8. However, it is not consistent. 
This error does not show up with my Python 2.5 build of Pygame. The 
error may involve some subtle interaction between the two Python 
versions, possibly involving .pyc files. I installed Brian Fisher's 
build of 1126 and it only failed on the second try out of approximately 
ten trials. When I ran the unit tests on Python 2.4 and Python 2.5 in 
two separate Pygame source directories Python 2.4 finally passed the 
tests consistently.

I just bring this up since it shows possible problems with testing more 
than one version of Python on the same system. If it is a Pygame bug it 
is unpredictable and hard to pin down. So please keep a watch for 
similar problems. Maybe someone using Python 2.4 and SVN version 1126 of 
Pygame can run the unit tests ten or more times consecutively to check 
if it passes consistently? My installers are available at 
http://www3.telus.net/len_l/pygame.htm along with SVN version 1126 of 
the Pygame 1.8 documents and examples in compressed and installer form.

--
Lenard Lindstrom
<len-l@xxxxxxxxx>