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nootrope/brew_install_python_upgrade_pip.md

Last active April 10, 2016 14:49
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About Installing Pythons with Homebrew
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brew_install_python_upgrade_pip.md

If you use Homebrew to install Python and Python3, make sure to install python3 first. Otherwise, when trying to upgrade pip3 withpip3 install --upgrade pip it will clobber default command pip and link it to the python3 packages, i.e., pip3.

To avoid a lot of wasted time and relinking I do this:

# First install Python3
$ brew install python3
$ brew linkapps python3
$ pip3 install --upgrade pip setuptools
# Then install Python 2
$ brew install python
$ brew linkapps python
$ pip install --upgrade pip setuptools

Thereafter, working only within virtualenvs makes moot that conflict. See this article for a setup which is only missing the installation/use of virtualenvwrapper.

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