No module named 'regex._regex'; 'regex' is not a package

[jonasrk]

Traceback (most recent call last):
File "/usr/local/bin/black", line 5, in
from black import patched_main
File "/usr/local/lib/python3.8/site-packages/black.py", line 15, in
import regex as re
File "/usr/local/lib/python3.8/site-packages/regex.py", line 402, in
import _regex_core
File "/usr/local/lib/python3.8/site-packages/_regex_core.py", line 21, in
import regex._regex as _regex
ModuleNotFoundError: No module named 'regex._regex'; 'regex' is not a package

[daviddavis]

I'm hitting the same thing. I can reproduce this without black too just by opening a repl:

>>> import regex as re
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/pulp/lib64/python3.7/site-packages/regex.py", line 402, in <module>
    import _regex_core
  File "/usr/local/lib/pulp/lib64/python3.7/site-packages/_regex_core.py", line 21, in <module>
    import regex._regex as _regex
ModuleNotFoundError: No module named 'regex._regex'; 'regex' is not a package

[jonasrk]

@daviddavis So it's the fault of https://pypi.org/project/regex/ ?

Update: I've created https://bitbucket.org/mrabarnett/mrab-regex/issues/349/no-module-named-regex_regex-regex-is-not-a - just in case.

[daviddavis]

Yea, if I pin regex==2019.11.1, everything works fine. So I think it's regex 2019.12.9.

[bavedarnow]

Looks like they were doing some work recently that may have caused this: https://bitbucket.org/mrabarnett/mrab-regex/commits/all

Black isn't pinned to any specific version of regex: https://github.com/psf/black/blob/master/setup.py#L72

[mikegrima]

Seeing this now with moto: https://travis-ci.org/spulec/moto/jobs/625868515?utm_medium=notification&utm_source=github_status

[TomFaulkner]

Will there be a release for this fix? Timeframe?

If not I can pin the requirement in my team's requirements file, just want to know whether I should or just wait a bit.

[basnijholt]

Getting the same thing on Azure.

Anyone knows what changed?

Seems like a new patch release of black is needed.

Edit: according to the author of regex its

The Linux wheels are a result of issue #343.

[vilhelmprytz]

Also have the same issue. What happened?

[VolodymyrPavliukevych]

Have the same on Google Cloud App engine

[TomFaulkner]

Also have the same issue. What happened?

regex isn't pinned to a particular version. Apparently something in that library changed with their most recent release.