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As the title, I have installed uvicorn using the powershell, and added the environment variable. But whenever I run the command, I get the same error. I know I must be doing something small and stupid, but following every answer on SO tells me the same thing, and I have no leads at all.

env variable error screen

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4 Answers 4

Reset to default
9

Try do the following

python3 -m uvicorn main:app
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2

I know this is an old question but to anyone still looking for a solution if you're on windows at least.

  • Do pip install uvicorn, then do pip uninstall uvicorn, this will give you the directory location of where uvicorn is installed.
  • Type n to not uninstall, you are just getting the path. Go to the location in your explorer where it was installed, for me, it was in users/AppData/roaming/Python/Python37/site-packages.
  • Copy the "uvicorn" and "uvicorn-X.XX.Xdist-info" folders, then go to users/AppData/roaming/Python/Python37/Scripts and copy the "uvicorn.exe".
  • You are going to paste all three of these items to something like path: "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\Scripts".
  • After this, go back to your terminal and try "uvicorn main:app --reload".

And it should work now.

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pip has a command to dump information about a package that could be used here instead of uninstall pip show <package_name>
0

Me I've just copied folders:

  • "uvicorn" and "uvicorn-X.XX.Xdist-info" from C:\Users\samue\AppData\Roaming\Python\Python38\site-packages
  • and the file "uvicorn.exe" from C:\Users\samue\AppData\Roaming\Python\Python38\Scripts

to my default python folder: C:\Program Files\Python38\Scripts, and I added the link to the .exe file to the environment variables path. It worked!

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-1

Usually console won't take the changes when applied to environmental variables when it is open. So can you try once closing the powershell or CMD and reopen.

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1 Comment

I did restart the powershell everytime I did the changes...

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