Installing and upgrading python

3.3 Packages.md

###pip3.3

  $ curl -O http://python-distribute.org/distribute_setup.py
  $ python3 distribute_setup.py
  $ curl -O https://raw.github.com/pypa/pip/master/contrib/get-pip.py
  $ python3 get-pip.py
  $ rm get-pip.py

##setuptools for pip to get egg_info

  $ pip3.3 install --upgrade setuptools

###virtualenv: to create isolated Python environments.

  $ pip3.3 install virtualenv

Create a virtual environment in a folder python-virtualenv

  $ virtualenv python3
  $ source python3/bin/activate   #Active virtualenv
  $ deactivate                    #Deactivate virtualenv    
  $ workon python3

Install prereqs

  $ brew install gfortran  #Prereq for scipy

Install the sci-superpack

Numpy (1.9) and Scipy (0.14), Matplotlib (1.4), iPython (2.0), Pandas (0.13), Statsmodels (0.6), Scikit-Learn (0.15), as well as PyMC (2.3)

  $ curl -o install_superpack.sh https://raw.github.com/fonnesbeck/ScipySuperpack/master/install_superpack.sh
  $ sh install_superpack.sh
  
  $ pip3.3 install numpy==1.8  #1.9 raises some errors when used with python 3.3.3

Other Python packages

• nose: testing
• pyyaml & nltk: natural language processing
• textblob: text processing

  $ pip3.3 install nose
  $ pip3.3 install textblob
  $ pip3.3 install -U pyyaml nltk

###NLTK corpora https://github.com/nltk/nltk_data/tree/gh-pages/packages/corpora

Homebrew.sh

### Makes you owner of /usr/local 
$ sudo chown -R `whoami` /usr/local

### Force uninstalls failed python
$ brew uninstall -f python

### Clear the brew cache
$ rm -rf `brew --cache`

### Recreate the brew cache
$ mkdir `brew --cache`

### Cleanup - cleans up old homebrew files
$ brew cleanup

### Prune - removes dead symlinks in homebrew
$ brew prune

### Doctor - runs homebrew checks for common error causing issues
$ brew doctor

########
### Google and follow anything steps to fix brew doctor might come back with
########

### Reinstall python
$ brew install python

Update to Python 3.3.txt

In PyCharm, you would open its properties and under 
“Project Interpreters” change the Python Interpreter

In ~/.bash_profile:
# Setting PATH for Python 3.3
PATH="/Library/Frameworks/Python.framework/Versions/3.3/bin:${PATH}"
export PATH

update-python3.3.sh

#!/bin/bash

chown -R root:wheel /Library/Frameworks/Python.framework/Versions/3.3
 
rm /System/Library/Frameworks/Python.framework/Versions/Current
ln -s /Library/Frameworks/Python.framework/Versions/3.3 /System/Library/Frameworks/Python.framework/Versions/Current
 
rm /usr/bin/pydoc
rm /usr/bin/python
rm /usr/bin/pythonw
rm /usr/bin/python-config
 
ln -s /Library/Frameworks/Python.framework/Versions/3.3/bin/pydoc3 /usr/bin/pydoc
ln -s /Library/Frameworks/Python.framework/Versions/3.3/bin/python3 /usr/bin/python
ln -s /Library/Frameworks/Python.framework/Versions/3.3/bin/pythonw3 /usr/bin/pythonw
ln -s /Library/Frameworks/Python.framework/Versions/3.3/bin/python3-config /usr/bin/python-config