Python · Strings

str.find() / index()

find returns -1 when missing; index raises ValueError.

pythonRunnable example python course

Syntax

text.find(term)

Example

Open in the lab

print("banana".find("na"))
try:
    "banana".index("zz")
except ValueError:
    print("not found")

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.