HOWTO install egg file for python

Using easy_install, which is installed by setuptools (http://pypi.python.org/pypi/setuptools).

~$ easy_install XXXXX.egg
This is for binary egg file. While script egg file should be treated as normal shell script. To install:
~$ sh XXXXXX.egg

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Another popular way to install python 'modules', is:
~$ python setup.py install
This is from python source. Normally third parties will provide such kind of source.