not-an-iterable / E1133

Message emitted:

Non-iterable value %s is used in an iterating context

Description:

Used when a non-iterable value is used in place where iterable is expected

Problematic code:

for i in 10:  # [not-an-iterable]
    pass

Correct code:

for i in "10":
    pass

Created by the typecheck checker.