ImportError: cannot import name 'echo' from 'click' (unknown location)

[salmanhiro]

I'm using Python 3.8.9 with conda environment and resulted in this problem

Traceback (most recent call last):
  File "/Users/mac/opt/anaconda3/bin/black", line 5, in <module>
    from black import patched_main
  File "/Users/mac/opt/anaconda3/lib/python3.8/site-packages/black/__init__.py", line 46, in <module>
    from black.concurrency import cancel, shutdown, maybe_install_uvloop
  File "/Users/mac/opt/anaconda3/lib/python3.8/site-packages/black/concurrency.py", line 6, in <module>
    from black.output import err
  File "/Users/mac/opt/anaconda3/lib/python3.8/site-packages/black/output.py", line 11, in <module>
    from click import echo, style
ImportError: cannot import name 'echo' from 'click' (unknown location)

I tried to installing click by pip install click but the problem still persists

[ichard26]

Hello!

It's almost impossible to diagnose the issue without more information as especially this is an issue with the click library. As far as I can tell the echo function has existed under the click namespace for years. What version of click are you running? You might also want to upgrade / force-reinstall click via --upgrade / --force-reinstall pip install flags.

[JelleZijlstra]

Looks like this is probably something to do with namespace packages (https://www.python.org/dev/peps/pep-0420/).

[nph4rd]

Getting something similar in a GitHub Actions workflow running 3.7.12:

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.7.12/x64/bin/black", line 8, in <module>
    sys.exit(patched_main())
  File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/black/__init__.py", line 6606, in patched_main
    patch_click()
  File "/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/black/__init__.py", line 6595, in patch_click
    from click import _unicodefun  # type: ignore
ImportError: cannot import name '_unicodefun' from 'click' (/opt/hostedtoolcache/Python/3.7.12/x64/lib/python3.7/site-packages/click/__init__.py)

[JelleZijlstra]

@arturomf94 you're using an old version of Black.

[pmolodo]

"old" meaning more than 5 hours ago:

https://github.com/psf/black/releases/tag/22.3.0

(For the curious, this is the PR: #2966)

[JelleZijlstra]

"old" meaning more than 5 hours ago:

No, much older than that.

[nph4rd]

Tbf, I think I am using and older one! I believe it's black==20.8b1.

[pmolodo]

Hmm - ok, how old, then? I was just writing some workaround code which is checking the version of black a user is requesting and pinning the version of click if it's before 22.3.0. Which version should I be checking for?

[JelleZijlstra]

Any version before 22.3.0 will fail. I was just pointing out that @arturomf94 was running a much older version.