On 2/20/23 20:36, Hen Hanna wrote: > For a while, i've been curious about a [Tuple Comprehension]
I've never heard of a "Tuple comprehension." No such thing exists as far as I know. > So finally i tried it, and the result was a bit surprising... > > > X= [ x for x in range(10) ] > X= ( x for x in range(10) ) > print(X) > a= list(X) > print(a) What was surprising? Don't keep us in suspense! Using square brackets is a list comprehension. Using parenthesis creates a generator expression. It is not a tuple. A generator expression can be perhaps thought of as a lazy list. Instead of computing each member ahead of time, it returns a generator object which, when iterated over, produces the members one at a time. This can be a tremendous optimization in terms of resource usage. See https://docs.python.org/3/reference/expressions.html#generator-expressions. Also you can search google for "generator expression" for other examples. -- https://mail.python.org/mailman/listinfo/python-list
