Hello dear readers! Welcome back to another edition of our tutorial on Python. In this tutorial guide, we are going to be discussing about the Python String Index() method.
The Python string index() method determines if string str occurs in a string, or in a substring of a string if the starting index beg and ending index end are given. The method is the same as find(), but raises an exception if sub is not found.
The Python string index() method determines if string str occurs in a string, or in a substring of a string if the starting index beg and ending index end are given. The method is the same as find(), but raises an exception if sub is not found.
Syntax
The following below is the syntax for the Python String endswith() method -
str.index(str, beg = 0, end = len(string) )
RECOMMENDED: Python String Find() Method
Parameter Details
- str - This specifies the string to be searched.
- beg - The is the starting index. By default its 0.
- end - This is the ending index. By default it is equal to the length of the string.
Return Value
This Python method returns an index if found, otherwise it raises an exception if str is not found.
Example
The following below is a simple example -
#!/usr/bin/python str1 = "this is string example....wow!!!"; str2 = "exam"; print str1.index(str2) print str1.index(str2, 10) print str1.index(str2, 40)
Output
Below is the output of the above example -
15 15 Traceback (most recent call last): File "test.py", line 8, in print str1.index(str2, 40); ValueError: substring not found shell returned 1
RECOMMENDED POST: Python Strings Tutorial
Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the Python String isalnum() method.
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Feel free to ask your questions where necessary and i will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.
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Thanks for reading and bye for now.