The None Type
Python's version of NULL
Written as "None"
a = None
Doesn't represent anything (an empty value)
Evaluates to false in boolean expressions.
Isn't very exciting in general (even though it's pretty useful).
<<<
O'Reilly OSCON 2000, Introduction to Python, Slide 35
July 17, 2000, beazley@cs.uchicago.edu
>>>