[Zope-dev] Re: Zope 2.7.0 rc2 + python 2.3.3 problem

[Evan Simpson]

Tim Peters wrote:
> it *looks* like you could leave name None, but set '__file__' to something
> (non-None) explicitly.

Thanks! This seems to do the trick, and I have a unit test that fails 
before and passes after the change.

While creating the test, though, I ran across some disturbing behavior. 
  In interactive mode (and when running unit tests) something is getting 
confused:

Python 2.3.3 (#2, Jan 13 2004, 00:47:05)
[GCC 3.3.3 20040110 (prerelease) (Debian)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
 >>> range(1.0)
__main__:1: DeprecationWarning: integer argument expected, got float
[0]
 >>>

So far, so good.  However:

Python 2.3.3 (#2, Jan 13 2004, 00:47:05)
[GCC 3.3.3 20040110 (prerelease) (Debian)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
 >>> __name__=None
 >>> range(1.0)
[]
 >>> 1+1
Traceback (most recent call last):
   File "/usr/lib/python2.3/warnings.py", line 57, in warn
     warn_explicit(message, category, filename, lineno, module, registry)
   File "/usr/lib/python2.3/warnings.py", line 63, in warn_explicit
     if module[-3:].lower() == ".py":
TypeError: unsubscriptable object
 >>>

...and...

Python 2.3.3 (#2, Jan 13 2004, 00:47:05)
[GCC 3.3.3 20040110 (prerelease) (Debian)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
 >>> import warnings
 >>> warnings.simplefilter("error", category=DeprecationWarning)
 >>> range(1.0)
[]
 >>> 1+1
Traceback (most recent call last):
   File "/usr/lib/python2.3/warnings.py", line 57, in warn
     warn_explicit(message, category, filename, lineno, module, registry)
   File "/usr/lib/python2.3/warnings.py", line 92, in warn_explicit
     raise message
DeprecationWarning: integer argument expected, got float
 >>>

...and...

Python 2.3.3 (#2, Jan 13 2004, 00:47:05)
[GCC 3.3.3 20040110 (prerelease) (Debian)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
 >>> import pdb
 >>> __name__ = None
 >>> pdb.run('range(1.0)')
 > <string>(1)?()
(Pdb) s
--Call--
 > /usr/lib/python2.3/warnings.py(24)warn()
-> def warn(message, category=None, stacklevel=1):
(Pdb) r
--Return--
/usr/lib/python2.3/bdb.py:302: RuntimeWarning: tp_compare didn't return 
-1 or -2 for exception
   i = max(0, len(stack) - 1)
[traceback snipped]

Looks like something isn't properly propagating exceptions.

Cheers,

Evan @ 4-am