[ python-Bugs-1370322 ] Float marshaling problems with test_colorsys

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Bugs item #1370322, was opened at 2005-11-30 20:49
Message generated for change (Comment added) made by birkenfeld
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Category: Python Interpreter Core
Group: Python 2.5
Status: Open
Resolution: None
Priority: 7
Submitted By: Reinhold Birkenfeld (birkenfeld)
Assigned to: Michael Hudson (mwh)
Summary: Float marshaling problems with test_colorsys

Initial Comment:
Starting point: "make clean; make" in the 2.5 source tree.

"make test" hangs at test_colorsys.

Careful investigation shows that when the bytecode is
freshly generated
by "make all" (precisely in test___all__) the .pyc file
is different from what a
direct call to "regrtest.py test_colorsys" produces.

Curiously, a call to "regrtest.py test___all__" instead
of "make test" produces
the correct bytecode.

System is Linux 2.6, x86, gcc 3.4.4.

I have attached both versions of colorsys.pyc.

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>Comment By: Reinhold Birkenfeld (birkenfeld)
Date: 2005-12-10 14:35

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Yes, it is reproducable. If it's local to me, I don't know
what could be causing it.
I have a SVN tree without local changes on my local box and
my laptop, and both of them show the same bug.

I'll boot into some CD Linux later and see if the other
environment makes it vanish.

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Comment By: Michael Hudson (mwh)
Date: 2005-12-10 12:47

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Also, is the problem reproducable on *your* system?  AFAIK, noone else has 
reproduced it, but I don't know how many people are actually running make test 
on development Python these days...

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Comment By: Michael Hudson (mwh)
Date: 2005-12-10 12:43

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I don't think so, no.  For a start, I can't reproduce the problem (mind you, I only 
use a Mac regularly these days).

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Comment By: Reinhold Birkenfeld (birkenfeld)
Date: 2005-12-10 12:07

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Michael, you lately corrected a problem with floatobject.
Although the problem persists here, could it be caused by a
similar bug?

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Comment By: Armin Rigo (arigo)
Date: 2005-12-01 11:32

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It's again a problem with floats.  For example, the constant 0.3 in rgb_to_yiq shows up as 0.0 in bad.pyc.  The constant 1.72986 shows up as 1.0.

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