pydiary_notes Running notes on work done on various pet/rsonal proejcts in Python 08,23-May/2016: Simple usage of 'sys' module 23-May/2016: How not to modify sequence, like, list (mutable), while looping over it. Read more at [Python 2.x Compound Statements] (https://docs.python.org/2/reference/compound_stmts.html) Look for the note starting like this: Note: There is a subtlety when the sequence is being modified by the loop (this can only occur for mutable sequences . . .