# Declare a Variable and Initialize it f = 0; print f #Re delaring the variable works f = "abc" print f #ERROR: different types cannot be combined #print "string type " + 123 # The Following works print "string type " + str(123) #Global vs Local variables in functions def someFunction(): global f f = "def" print f someFunction() print f del f print f # Once a Statement has been made, the values which have been said to delete are forgotten, so when the cpu tries to print # the value "f", the CPU cannot trace the file back to its orignonal location, cause it no longer exists.
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