Installing and Managing Multiple Python Versions in Mac Using Pyenv

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brew update
brew install pyenv

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# (The below instructions are intended for common
# shell setups. See the README for more guidance
# if they don't apply and/or don't work for you.)

# Add pyenv executable to PATH and
# enable shims by adding the following
# to ~/.profile and ~/.zprofile' files
in your home directory:

export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init --path)"

# Load pyenv into the shell by adding
# the following to ~/.zshrc:

eval "$(pyenv init -)"

# Make sure to restart your entire logon session
# for changes to profile files to take effect.

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pyenv install 3.6.0
pyenv install 3.7.0

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echo $(pyenv root)/versions

/Users/vinodpandey/.pyenv/versions

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pyenv versions

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pyenv local 3.6.0
python -V
Python 3.6.0