Typing "jupyter notebook" in command line isn't a recognized command, only py -m notebook

I have installed jupyter, and it runs using the method I'ved specified in the title, but even after creating a environment variable typing "jupyter notebook" into cmd just doesn't work. Any help?

The issue names no files, tests, or code entry points. Start by reproducing the Windows command-line behavior with the reported `jupyter notebook` and `py -m notebook` commands; the issue does not define a code change or a clear completion criterion.

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