Why is 'pip install' Failing and How Can I Fix It?

'pip install' Encountering Installation Failures

Encountering installation failures with "pip install" for every package can be a frustrating experience. The error message "Could not find a version that satisfies the requirement " has been reported by many users.

Solution

To resolve this issue, upgrade Pip using the following command:

curl https://bootstrap.pypa.io/get-pip.py | python

You may need to use "sudo python" if you are not in a virtual environment.

Cause

This issue arises because Python.org sites are discontinuing support for TLS versions 1.0 and 1.1. Consequently, Mac OS X version 10.12 (Sierra) and earlier are unable to use Pip without upgrading it. Even attempting to update Pip through "pip install --upgrade pip" will fail due to the interdependence of this issue.

Additional Notes

• To prevent further installation errors, upgrade setuptools after updating Pip using the command:

pip install --upgrade setuptools

• The Python status page confirms the completion of rolling brownouts and the disabling of TLSv1.0 and TLSv1.1.

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