check python version mac
# To check python 3 version type in the terimnal:
python3 --version
# To check python 2 version just type:
python --version
# If any errors come up then that means python isn't installed on your
# system.check python version mac
# To check python 3 version type in the terimnal:
python3 --version
# To check python 2 version just type:
python --version
# If any errors come up then that means python isn't installed on your
# system.change default python version mac
#install or update brew
$ brew install pyenv
#install
$ pyenv install 3.7.3
#make default
$ pyenv global 3.7.3
# and verify
$ pyenv version
3.7.3 (set by /Users/mbbroberg/.pyenv/version)
$ echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init -)"\nfi' >> ~/.bash_profile
#reset the current shell
$ exec $0
$ which python
#/Users/mbbroberg/.pyenv/shims/python
$ python -V
$ pip -V
#pip 19.0.3 from /Users/mbbroberg/.pyenv/versions/3.7.3/lib/python3.7/site-packages/pip (python 3.7)use python3 as default mac
ln -s -f /usr/local/bin/python3.7 /usr/local/bin/pythonset python3 as default mac
# it is said not to do but I used it anyway, because of the conveniency
$ echo "alias python=/usr/local/bin/python3.7" >> ~/.zshrcmac catallina python3
$ brew install pyenvset python 3 as default mac
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