Mapping Functions over Sequences: map and lambda : map « Buildin Function « Python Tutorial





counters = [1, 2, 3, 4] 

map((lambda x: x + 3), counters)        # Function expression










13.31.map
13.31.1.map(function, sequence) calls function(item) for each of the sequence's items and returns a list of the return values
13.31.2."map(None, list1, list2)" is a convenient way of turning a pair of lists into a list of pairs
13.31.3.Mapping Functions over Sequences: map
13.31.4.Mapping Functions over Sequences: map and lambda