Why Is 'pip install' Failing for All Packages Due to TLS Issues?

"pip install" Failure for All Packages Due to TLS Issues

Question:

Pip install is consistently failing for all packages, returning the message "Could not find a version that satisfies the requirement." Despite checking similar questions, no apparent solution has been found.

Answer:

Upgrade pip with the following command:

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

Explanation:

Python.org sites are phasing out support for TLS versions 1.0 and 1.1. As a result, Mac OS X version 10.12 (Sierra) or older will require a pip upgrade for continued functionality.

Consequences of Not Upgrading:

• Mac OS X 10.12 or older will be unable to use pip without the upgrade.
• Upgrading pip via "pip install --upgrade pip" may not be successful.
• TLSv1.2 support is now necessary for pip on macOS versions below 10.13.

Additional Precautions:

• Once pip is upgraded, it is recommended to also upgrade setuptools:

pip install --upgrade setuptools

• This will minimize potential installation errors.

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