I thought this would work:
subprocess.run(['pip', 'freeze', '>', 'requirements.txt'])
... but no file appears to have been created. However, the results of pip freeze are listed in stdout.
I then tried:
subprocess.run(['pip', 'freeze', '>', 'requirements.txt'], cwd=pathlib.Path.cwd())
... nothing.
I surmised that using ">" like this doesn't work (although slightly mystified that no error is raised if so), so tried this:
req_txt = pathlib.Path.cwd().joinpath('requirements.txt')
req_txt.touch()
subprocess.run(['pip', 'freeze'], stdout=req_txt)
... this leaves an empty file.
What's the way to do this?
