Mac using:Could not find a version that satisfies the requirement tensorflow (from versions: ) No matching distribution found for tensorflow

Question

python version:

$ python3 -V
Python 3.7.0

pip3 path:

which -a pip3
/Library/Frameworks/Python.framework/Versions/3.7/bin/pip3
/Library/Frameworks/Python.framework/Versions/3.6/bin/pip3
/Library/Frameworks/Python.framework/Versions/3.6/bin/pip3
/usr/local/bin/pip3

pip3 version:

pip3 -V
pip 18.0 from /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip (python 3.7)

the tensorflow could be installed by pip without any problem but couldn't be installed by pip3

$ pip3 install tensorflow
Collecting tensorflow
  Could not find a version that satisfies the requirement tensorflow (from versions: )
No matching distribution found for tensorflow

the similar problem happens when I try to install any other packages.

Answer 1

I fixed this by uninstalling python@2 and reinstall python@3.8

$ brew doctor
# it shows a lot warnings about python@2 and python@3.8

$ brew uninstall python@2

$ brew reinstall python@3.8

$ python3 --version
Python 3.8.6

$ pip3 install tensorflow