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http://www.pyschools.com/

Python Tutorial

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http://gnosis.cx/TPiP/

Text Processing in Python (a book)

A couple of you make donations each month (out of about a thousand of you reading the text each week).
O'reilly

Python

Python

Python for Scientific Computing

matplotlib

matplotlib is a python 2D plotting library which produces publication quality figures in a variety of hardcopy formats and interactive environments across platforms. matplotlib can be used in python scripts, the python and ipython shell (ala MATLAB ® * or Mathematica ® † ), web application servers, and six graphical user interface toolkits. http://matplotlib.sourceforge.net/index.html
http://www2.gsu.edu/~matrhc/PyDSTool.htm PyDSTool is a sophisticated & integrated simulation and analysis environment for dynamical systems models of physical systems (ODEs, DAEs, maps, and hybrid systems).

PyDSTool

SciPy (pronounced "Sigh Pie") is open-source software for mathematics, science, and engineering. http://www.scipy.org/SciPy

SciPy

http://www.awaretek.com/tutorials.html The Grimoire is different and deserves a category unto itself.

Python Tutorials, more than 300, updated March 2, 2009 and carefully sorted by topic and category

Last week Science Daily published an article that caught my attention titled 'Sounds of Silence' Proving a Hit: World's Fastest Random Number Generator . http://planet.python.org/

Planet Python