The index() method returns the index where a substring exists in the string (if found).
Example
#!/usr/bin/python3
# -*- coding: UTF-8 -*-
list1 = ['MIT', 'CIT', 'Yale','UCI','123',321]
print("the index value of MIT is: ", list1.index('CIT'))
print("the index value of MIT is: ", list1.index('123'))
print("the index value of MIT is: ", list1.index('Yale'))
print("the index value of MIT is: ", list1.index(321))
Output:
the index value of MIT is: 1
the index value of MIT is: 4
the index value of MIT is: 2
the index value of MIT is: 5
Syntax
list.index(sub)
Parameters
| Name | Description |
| sub | Substring to be searched in the string. |
Return Value
It returns the index location of the searched substring and throws an exception if no substring is found.