darker does not format in VSCode, if isort is enabled

[strzonnek]

Describe the bug
Using VSCode format-on-save with isort, the saved file won't be changed.
Without isort, it works as expected

To Reproduce
Steps to reproduce the behavior:
using the following settings in VSCode

  "python.formatting.provider": "black",
  "python.formatting.blackPath": "darker",
  "python.formatting.blackArgs": [
    "--diff",
    //"--isort",
    "--line-length",
    "120"
  ],

simple code for testing the behaviour:

def do_it( arg ):
    print( "test" )

should result into

def do_it(arg):
    print("test")

If --isort is enabled, neither the extra whitespace in brackets are deleted, nor the imports are sorted.
If --isort is disabled, the extra whitespace in brackets are deleted, as expected

Expected behavior
formatting should work, with --isort enabled

Environment (please complete the following information):

• OS: macos
• Python version 3.7.10
• Git version 2.20.1
• Darker version 1.7.1
• Black version 23.3.0
• other reformatter and linter versions isort 4.3.21

[akaihola]

Hi @strzonnek, thanks for the report!

I wonder if there's a way to see Darker terminal output in VSCode? Maybe that would reveal the problem, and if not, maybe adding -v or -vv would tell us more?

[strzonnek]

@akaihola I cannot reproduce it anymore. I updated VSCode, then the issue disappeared, I went back to the old VSCode version, but the issue did not come back anymore.
So, I close this issue and open a new one, if I face it again.
Thanks for your support, Stephan