retaining a variable from one call to the next
Functions, Modules and Packages example from a Well House Consultants training course
More on Functions, Modules and Packages [link]
Source code: repeater Module: Y105
# attribute of function - static (retained)
tick.count += 1
tick.count = 1
# local variable - new each time
lvx += 1
lvx = 1
""" Sample output ...
WomanWithCat:y105 grahamellis$ python2 repeater
WomanWithCat:y105 grahamellis$ python3 repeater
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