[pypy-dev] Questions on stdlib-2.7.5 failures

[Benjamin Peterson]

On Thu, Jan 23, 2014, at 06:40 PM, Christian Hudon wrote:
> Hello,
> 
> I'm working again on the stdlib-2.7.5 branch of Pypy. I have a couple 
> questions, but since nobody seems to be around on irc right now, I'm 
> asking them here. :-)

Cool. Did you see lib-python/stdlib-upgrade.txt?

> 
> First, I kicked the buildbots yesterday, and there are a *lot* of errors 
> due to tests not being able to import the MAXREPEAT constant from the 
> _sre module. But it seems to me that it is defined in 
> pypy/module/_sre/__init__.py... Am I missing something? Are the errors 
> due to a build problem or something else?

Where definition of that constant is changed in CPython 2.7.5. You'll
probably have to move it accordingly.

> 
> Second, I'm trying to reproduce some of the more interesting failures 
> (test_multiprocessing, test_str), but when I try to run the tests on my 
> laptop, they fail like this instead:
> 
> platform darwin -- Python 2.7.5 -- pytest-2.2.4.dev2 -- /usr/bin/python
> collected 1 items
> test_str.py
> [snip]
> Traceback (application-level):
>    File 
> "/users/chrish/Code/pypy/pypy/tool/pytest/run-script/regrverbose.py", 
> line 4 in <module>
>      from test import test_support
>    File "/users/chrish/Code/pypy/lib-python/2.7/test/test_support.py", 
> line 21 in <module>
>      import struct
>    File "/users/chrish/Code/pypy/lib-python/2.7/struct.py", line 1 in 
> <module>
>      from _struct import *
> ImportError: No module named _struct
> FAILED
> 
> I don't really see anything that could look like a module called 
> "_struct" in the source code... Am I missing something here too?

I suspect the CPython struct.py stub is shadowing pypy's builtin struct
module. Try deleting struct.py.