how to correctly modify the iterator of a loop in python from within the loop

Question

what I basically need is to check every element of a list and if some criteria fit I want to remove it from the list.

So for example let\'s say that

list         


        

Answer 1

Its better not to reinvent things which are already available. Use filter functions and lambda in these cases. Its more pythonic and looks cleaner.

filter(lambda x:x not in ['b','c'],['a','b','c','d','e'])

alternatively you can use list comprehension

[x for x in ['a','b','c','d','e'] if x not in ['b','c']]