How to fix pip no such option: -U

Problem:

You want to install a python library using, for example

example.sh

pip -U install ansicolors

pip -U install ansicolors

However the library does not install and you instead see the following error message:

example.txt

Usage:   
  pip <command> [options]

no such option: -U

Usage:   
  pip <command> [options]

no such option: -U

You need to put -U afterinstall:

example.sh

pip install -U ansicolors

pip install -U ansicolors

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