https://python-reference.readthedocs.io/en/latest/docs/str/find.htmlhttps://python-reference.readthedocs.io/en/latest/docs/str/find.html
See also index()
which throws a ValueError
if not found rather than returning -1.
If you just want to know if something is a substring and are not so worried about its position see the in
operator and startswith()
and endswith()
methods of string
.