Black formatter doesn't format

Environment data

• VS Code version: 1.32.3
• OS and version: Mac OS X 10.14.3
• Python version (& distribution if applicable, e.g. Anaconda): 3.6
• Type of virtual environment used (N/A | venv | virtualenv | conda | …): virtualenv

Expected behaviour

black to auto-format files.

Actual behaviour

I use black as my main formatter. Neither when saving files nor clicking option+shift+f my files are getting formatted. I can see the message Formatting with black on the status bar, but nothing happens. My black path is set to /Library/Frameworks/Python.framework/Versions/3.6/bin/black, and when I use the command line to run the following command, the file is getting formatted.

/Library/Frameworks/Python.framework/Versions/3.6/bin/black FILE_TO_FORMAT

If I choose a different formatter as default, say autopep8, everything works correctly.

More information

1. I edited black path to be autopep8’s path, still doesn’t format.
2. I edited autopep8 path to be black’s path, still nothing.
3. When setting black path to black and installing black on virtualenv, it works.

Steps to reproduce:

1. Select black as VSCode formatter
2. Save a file or type option+shift+f
3. Now run black FILE_TO_FORMAT in command line for verification

Logs

Nothing mentioning black.

[mawkee]

I have the same issue, but only with black 19.3b0; try downgrading it to 18.9b0 and see if that works

[ericsnowcurrently]

@AdamGold, that’s great! I’m concerned that we didn’t determine if there’s a bug, but I’m glad it’s working for you now. 😃