Numpy unit tests errors

Question

I have two unit test errors in numpy which i can't seem to decipher: I'm running Ubuntu 16.4

> Running unit tests for numpy
NumPy version 1.11.0
NumPy relaxed strides checking option: False
NumPy is installed in /usr/lib/python2.7/dist-packages/numpy
Python version 2.7.12 (default, Nov 19 2016, 06:48:10) [GCC 5.4.0 20160609]
nose version 1.3.

and then the errors are:

Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/nose/loader.py", line 418, in        loadTestsFromName
addr.filename, addr.module)
File "/usr/lib/python2.7/dist-packages/nose/importer.py", line 47, in importFromPath
return self.importFromDir(dir_path, fqname)
File "/usr/lib/python2.7/dist-packages/nose/importer.py", line 94, in importFromDir
mod = load_module(part_fqname, fh, filename, desc)
File "/usr/lib/python2.7/dist-packages/numpy/core/tests/test_indexing.py", line 17, in <module>
cdll = np.ctypeslib.load_library('multiarray', np.core.multiarray.__file__)
File "/usr/lib/python2.7/dist-packages/numpy/ctypeslib.py", line 163, in load_library
raise OSError("no file with expected extension")
OSError: no file with expected extension

======================================================================

ERROR: Failure: OSError (no file with expected extension)

Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/nose/loader.py", line 418, in loadTestsFromName
addr.filename, addr.module)
File "/usr/lib/python2.7/dist-packages/nose/importer.py", line 47, in importFromPath
return self.importFromDir(dir_path, fqname)
File "/usr/lib/python2.7/dist-packages/nose/importer.py", line 94, in importFromDir
mod = load_module(part_fqname, fh, filename, desc)
File "/usr/lib/python2.7/dist-packages/numpy/tests/test_ctypeslib.py", line 11, in <module>
cdll = load_library('multiarray', np.core.multiarray.__file__)
File "/usr/lib/python2.7/dist-packages/numpy/ctypeslib.py", line 163, in load_library
raise OSError("no file with expected extension")
OSError: no file with expected extension

Does anyone have an idea what might be the problem?

Source code for some hints of what it is trying to do: github.com/numpy/numpy/blob/…, just search for your error. — Benjamin
– Benjamin, Commented Jan 29, 2017 at 17:45
Looks like it's got to do with how Ubuntu installs numpy - there is a multiarray so file but it's named slightly different from the filenames that are tried — jonatan
– jonatan, Commented Jan 29, 2017 at 21:54

dff · Accepted Answer · 2017-03-03 18:16:35Z

1

I had exactly the same error happening for numpy 1.11.0 and Ubuntu 16.04. I upgraded numpy to the most recent one [sudo] pip install --upgrade numpy, and then the tests worked.

answered Mar 3, 2017 at 18:16

dff

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