comments and --trailing-comma can generate invalid code

[benjaminp]

$ isort --version

                 _                 _
                (_) ___  ___  _ __| |_
                | |/ _/ / _ \/ '__  _/
                | |\__ \/\_\/| |  | |_
                |_|\___/\___/\_/   \_/

      isort your imports, so you don't have to.

                    VERSION 5.0.5
$  cat > example.py 
from somewhere import very_very_very_very_very_very_long_symbol # some comment
$ isort -l 50 --tc example.py
$ python3 example.py
  File "example.py", line 2
    very_very_very_very_very_very_long_symbol,  # some comment
    ^
SyntaxError: trailing comma not allowed without surrounding parentheses
$ cat example.py
from somewhere import \
    very_very_very_very_very_very_long_symbol,  # some comment

[timothycrosley]

Thanks for reporting! This is fixed with an additional regression test added in 5.0.6.

Thanks!

~Timothy