8.4 Writing Python scripts
==========================

1. What is importing
   * Definition (0.25 - 0.36)
   * Example of a gcd function (0.37 - 3.28)
   * Importing the the gcd function to another location (3.29 - 5.22)

#. Understand the ``__name__=="__main__"`` idiom
   * How ``__name__=="__main__"`` works (5.23 - 8.06)

#. Summary(8.10 - 8.20)

#. Evaluation Questions(8.21 - 9.31)