The definition of "strongly-typed" that Python conforms to is a useless one, because very few weakly-typed languages exist anymore, and even those are only very, very partially "weakly typed" by having operators that are defined to do automatic coercion, generally only between strings and numbers, which isn't even the way the original "weakly typed" was meant. The only truly "weakly typed" language I know of that is still extant is assembler/machine language, which can never really go away, where all you ever have are numbers, and thus absolutely nothing stops you from adding a string pointer to the first element of some structure. (Modulo some distinctions that still may exist between floats and integers and such... even assembler isn't as weak as it used to be, though it is still by no means a strongly-typed language.)

So I don't use the useless definition. By any useful definition of strong vs. weak typing, that is, one that actually creates two or more non-empty, non-trivial sets of members in the universe of discourse, Python is a weakly-typed language.