Black: type object 'FileMode' has no attribute 'from_configuration'

[ReddyKilowatt]

Black https://github.com/ambv/black/commit/ea55ff

Playground link

Options

--line-length=60

Input

def command(CamelCaseArg, another_arg, Bad_Camelcase):
    print(CamelCaseArg)

Output

type object 'FileMode' has no attribute 'from_configuration'

Expected

Who knows? No info is given how to runthe plaground. Only an error message is displayed,w
which doesn't explain anything. -> type object 'FileMode' has no attribute 'from_configuration'

[JelleZijlstra]

This is probably a bug in the playground. from_configuration definitely does exist in this repo. I don't see anything obviously wrong in the code in https://github.com/jpadilla/black-playground; @jpadilla any ideas?

[illfated]

From what I can find, you just need to use the link https://black.now.sh/?version=master .
When using only https://black.now.sh/ (https://black.now.sh/?version=stable),
it appears to be normal and not as easy to provoke the error message.

[jpadilla]

Working on fixing this soon.

[adamdavis40208]

Just an FYI, both master and stable are giving this error now

[adamdavis40208]

Seems better now! Thanks to whoever rebooted the website /s

[jpadilla]

Confirming the issue is officially fixed, thank you all! 🎉

[JelleZijlstra]

Thanks!