Homebrew now installs Python 3 with pip by default for 'python'
-# Perform the manual steps on osx to install python3 and activate an environment
+# Perform the manual steps on osx to install python and activate an environment
brew update
-brew install python3
-rm /usr/local/bin/python
-ln -s python3 /usr/local/bin/python
-ln -s pip3 /usr/local/bin/pip
+brew upgrade python
