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I need to install pip package from Python because the people who have to install the package cannot use command line (please don't ask). I used answer from here and it did not work. In fact this installation requires stdout and stderr to be connected to something so I get an error number 2.

user14959355
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  • Could you write a bash file to just run all the pip install commands on the computer instead of having them run them directly from the command line themselves? – zypherman Jan 07 '21 at 18:19
  • No because it is for people under Windows and I do not know where Python is installed. I could use the default installation directory (something like %USERPROFILE%/AppData/Local/Programs/Python/Python39) but they could have an older python installation. And the problem is that python is sometimes not in PATH. I found the answer below more generic. – user14959355 Jan 08 '21 at 09:19

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Running through the subprocess doc, I found the correct answer :

import subprocess,sys
subprocess.run([sys.executable, '-m', 'pip', 'install', package],stderr=subprocess.STDOUT,stdout=subprocess.PIPE,check=True)

Moreover, as a bonus, what was print on stdout and stderr is displayed.

user14959355
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