When entering briefcase dev mode (Beeware) I need to install pythonnet but it keeps failing and giving --single-version-externally-managed not recognized...
An old question here suggested using --egg or distribute noting that --egg has now depreciated and distribute merged with setuptools... so installed the latest versions of setuptools and wheel but still getting the same error!
Running setup.py install for pythonnet ... error
ERROR: Command errored out with exit status 1:
...
Complete output (6 lines):
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: setup.py --help [cmd1 cmd2 ...]
or: setup.py --help-commands
or: setup.py cmd --help
error: option --single-version-externally-managed not recognized
Setuptools, wheel and python running fully up to date, on Windows 10 and pip 20.1.1.
Hope somebody can help!! :-)
