What is the Python 3 equivalent of find ()?

str = "Python"

In Python2:

string.find(str,"y")

In Python3:

str.find("y")

Isn't it still just find? From the documentation:

str.find(sub[, start[, end]])

Return the lowest index in the string where substring sub is found, such that sub is contained in the slice s[start:end]. Optional arguments start and end are interpreted as in slice notation. Return -1 if sub is not found.

Use the .find() method of a string, rather than string.find(). (This also works, and is probably preferable, in python 2).