[Wheel-builders] Error from numpy wheel - any thoughts

[Nathaniel Smith]

On Mon, Mar 28, 2016 at 5:04 PM, Matthew Brett <matthew.brett at gmail.com> wrote:
> On Mon, Mar 28, 2016 at 5:02 PM, Nathaniel Smith <njs at pobox.com> wrote:
>> On Mon, Mar 28, 2016 at 3:39 PM, Matthew Brett <matthew.brett at gmail.com> wrote:
>>> On Mon, Mar 28, 2016 at 3:33 PM, Nathaniel Smith <njs at pobox.com> wrote:
>>>> On Mar 28, 2016 15:18, "Matthew Brett" <matthew.brett at gmail.com> wrote:
>>>> [...]
>>>>> And:
>>>>>
>>>>> $ python -c 'import _test_ext_module_5403'  # No error
>>>>> $ python -c 'import numpy; import _test_ext_module_5403'  # Error
>>>>> after importing numpy
>>>>> Traceback (most recent call last):
>>>>>   File "<string>", line 1, in <module>
>>>>> ImportError:
>>>>> /home/mb312/dev_trees/2fd9d9a29e022c297634/manylinux-test/lib/python2.7/site-packages/numpy/core/../.libs/libgfortran.so.3:
>>>>> version `GFORTRAN_1.4' not found (required by
>>>>> ./_test_ext_module_5403.so)
>>>>
>>>> Can you rerun this with LD_DEBUG=all and put the full output somewhere, like
>>>> a gist or attachment or something?
>>>
>>> Bit big for a gist : does this work?
>>> https://www.dropbox.com/s/7cdnl3zb4dr5i90/ld_debug.log.gz?dl=0
>>
>> Ha, oops, yeah, the per-symbol debugging chatter is probably a bit much, huh :-)
>>
>> ...But, that .log file doesn't seem to  contain either of the strings
>> "test_ext_module" or "GFORTRAN_1.4". Are you sure it's a log of the
>> same thing...?
>>
>> (If re-running then I guess LD_DEBUG=files,scopes,versions is probably
>> sufficient and will generate less output than LD_DEBUG=all.)
>
> Yes, I"m sure it's a log of the same thing - I said this before - but
> I do not see the error when running prefixed with LD_DEBUG

Ah, I did miss that detail. But... even so... that log shows every
single shared object that was loaded, and so the fact that
_test_ext_module_5403 doesn't show up in the output seems to say
Python never even tried to do dlopen("_test_ext_module_5403"), whether
successfully or unsuccessfully. It's like the 'import
_test_ext_module_5403' wasn't even executed at all. I *guess* that
could be some bizarro bug where enabling LD_DEBUG totally changes
python's execution path, but I hope not :-/ Any other ideas?

-n

-- 
Nathaniel J. Smith -- https://vorpus.org