My favorite book on introduction to Python. Printed version published by O'Reilly, pdf officially downloadable from here: http://www.greenteapress.com/thinkpython/

• http://scipy-lectures.github.io/
  (Includes also an excellent Python language intro and ref.)

• http://docs.scipy.org/doc/numpy/reference/
• http://docs.scipy.org/doc/numpy/user/

• http://docs.scipy.org/doc/scipy/reference/

• http://docs.scipy.org/doc/

Hans Petter Langtangen has written two excellent books on Scientific Programming with Python. The one I use in my courses is A primer on Scientific Programming with Python, which is also available in the university library.

UPDATE: Hans Petter passed away on Oct. 10, 2016 at 54 because of cancer! This makes me very sad. I would have loved to meet him once.

All his web pages at University Oslo have been removed.

• Dead link: Homepage of Hans Petter Langtangen
• Dead link: Comparison of his two books
• Resources for “A Primer on Scientific Programming with Python”

• Lecture Slides (home)

• Norwegian Introduction (pdf)
• Chapter 1: Computing with Formulas (pdf)
• Chapter 2: Lists and Loops (pdf)
• Chapter 3: Functions and Branching (pdf)
• Chapter 4: Input Data and Error Handling (pdf)
• Chapter 5: Array Computing and Curve Plotting (pdf)
• Chapter 6: Files, Strings, and Dictionaries (pdf)
• Chapter 7: Introduction to Classes (pdf)
• Chapter 8: Random Numbers and Simple Games (pdf)
• Chapter 9: Object-Oriented Programming (pdf)
• Summary of Python Functionality in INF1100 (pdf)
• Sequences and Difference Equations (Appendix A) (pdf)
• Programming of Differential Equations (Appendix E) (pdf)

• All chapters in one document (pdf)

Just install Anaconda3 Python distribution.