Anaconda Python

一般在做用 python 時，最常用到的三個 packages.

1. pip:  取代 easy_install.  是 python 最常用的 package manager

2. virtualenv: environment manager, 主要是自由切換 python2.x and python3.x.  不是很好用，也不常用。不過為了相容性，還是會 install.

3. Numerical packages (numpy, scipy, matplotlib, etc.), 或是用 Enthough, 或是 python(x,y).  

 

一個好消息是只要 install anaconda python, 可以集三者為一。不用再 install above!

 

Task	Conda package and environment manager command	Pip package manager command	Virtualenv environment manager command
Install a package	conda install $PACKAGE_NAME	pip install $PACKAGE_NAME	X
Update a package	conda update --name$ENVIRONMENT_NAME $PACKAGE_NAME	pip install --upgrade $PACKAGE_NAME	X
Update package manager	conda update conda	Linux/OSX: pip install -U pip Win: python -mpip install -U pip	X
Uninstall a package	conda remove --name$ENVIRONMENT_NAME $PACKAGE_NAME	pip uninstall $PACKAGE_NAME	X
Create an environment	conda create --name$ENVIRONMENT_NAME python	X	cd $ENV_BASE_DIR; virtualenv$ENVIRONMENT_NAME
Activate an environment	source activate $ENVIRONMENT_NAME	X	source$ENV_BASE_DIR/$ENVIRONMENT_NAME/bin/activate
Deactivate an environment	source deactivate	X	deactivate
Search available packages	conda search $SEARCH_TERM	pip search $SEARCH_TERM	X
Install package from specific source	conda install --channel $URL$PACKAGE_NAME	pip install --index-url $URL $PACKAGE_NAME	X
List installed packages	conda list --name $ENVIRONMENT_NAME	pip list	X
Create requirements file	conda list --export	pip freeze	X
List all environments	conda info --envs	X	Install virtualenv wrapper, then lsvirtualenv
Install other package manager	conda install pip	pip install conda	X
Install Python	conda install python=x.x	X	X
Update Python	conda update python *	X	X

• conda update python updates to the most recent in the series, so Python 2 to latest 2.x, Python 3 to latest 3.x, and so on.