getting what seems a circular import error when importing tensorly random as it overshadows numpy random probably

[mhelal]

Hi

I am trying to run the tests, and getting the following errors messages:

>pytest tensorly
Traceback (most recent call last):
  File "bit_generator.pyx", line 40, in numpy.random.bit_generator
  File "C:\Python3\lib\secrets.py", line 20, in <module>
    from random import SystemRandom
ImportError: cannot import name 'SystemRandom' from partially initialized module 'random' (most likely due to a circular import) (C:\manal\python\TensorTests\venv\Lib\site-packages\tensorly\random\__init__.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python3\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Python3\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Python3\Scripts\pytest-script.py", line 5, in <module>
    from pytest import console_main
  File "C:\Python3\lib\site-packages\pytest\__init__.py", line 5, in <module>
    from _pytest.assertion import register_assert_rewrite
  File "C:\Python3\lib\site-packages\_pytest\assertion\__init__.py", line 8, in <module>
    from _pytest.assertion import rewrite
  File "C:\Python3\lib\site-packages\_pytest\assertion\rewrite.py", line 300, in <module>
    from atomicwrites import atomic_write
  File "C:\Python3\lib\site-packages\atomicwrites\__init__.py", line 5, in <module>
    import tempfile
  File "C:\Python3\lib\tempfile.py", line 45, in <module>
    from random import Random as _Random
  File "C:\manal\python\TensorTests\venv\Lib\site-packages\tensorly\random\__init__.py", line 1, in <module>
    from .base import random_tensor
  File "C:\manal\python\TensorTests\venv\Lib\site-packages\tensorly\random\base.py", line 1, in <module>
    import numpy as np
  File "C:\Python3\lib\site-packages\numpy\__init__.py", line 151, in <module>
    from . import random
  File "C:\Python3\lib\site-packages\numpy\random\__init__.py", line 179, in <module>
    from . import _pickle
  File "C:\Python3\lib\site-packages\numpy\random\_pickle.py", line 1, in <module>
    from .mtrand import RandomState
  File "mtrand.pyx", line 1, in init numpy.random.mtrand
  File "bit_generator.pyx", line 43, in init numpy.random.bit_generator
ImportError: cannot import name SystemRandom

Any workaround to this problem please,

thank you,

Manal

[JeanKossaifi]

Hi Manal,

What version of TensorLy are you using? Are you running the tests from the root folder?
Can you try using the Makefile and run make test?

[JeanKossaifi]

No, should be run as as is. Where are you running the command from? You should be outside the package, if you are running in tensorly/tensorly the .random subpackage would cause issues.

As a side note, if you need to access the source-code or modify it I'd advised cloning the repository and installing from source.

[mhelal]

I went outside the venv, things look better, but not yet:

pytest --pyargs tensorly
================================================= test session starts =================================================
platform win32 -- Python 3.8.8, pytest-6.1.2, py-1.10.0, pluggy-0.13.1
rootdir: C:\manal\python\TensorTests
plugins: hypothesis-6.6.0, cov-2.11.1, forked-1.3.0, mock-3.3.1, timeout-1.4.2, xdist-2.1.0
collected 0 items

================================================ no tests ran in 0.05s ================================================
ERROR: module or package not found: tensorly (missing __init__.py?)

[JeanKossaifi]

This looks like TensorLy is not installed. You should have the environment in which you installed TensorLy active and run the test in any other folder (not inside the folder where TensorLy was installed).

[mhelal]

I am sorry, all I needed is to pip install pytest

thank you very much

[mhelal]

127 passed, 4 skipped, 19 warnings in 34.79s

All is great,
thanks again

[JeanKossaifi]

For anyone having a similar issue:

1. Ensure you have pytest installed (pip install pytest)
2. Ensure you have TensorLy installed.
3. From outside the tensorly folder, run pytest --pyargs tensorly

If you have installed TensorLy from source you can also go to the root directory and run make test (or pytest -v tensorly)