Question

Describe index(str, beg=0, end=len(string)) with example

Answer 1

Explanation:

Parameters. str − This specifies the string to be searched. beg − This is the starting index, by default its 0. end − This is the ending index, by default its equal to the length of the string

Answer 2

Description of index with example:

The process index ( ) states if “str” string follows in string or in a substring of string if initial index beg and ending index end are known.  

This method is similar as find ( ), but increases an exception  if sub is not found.  

Syntax value: str.index(str, beg=0 end=len(string))

For example:

#!/usr/bin/python  

str = “this is string example….wow!!!”;  

str = “exam”;  

print str.index(str);  

print str.index(str, 10);  

print str.index(str, 40);  

OUTPUT  

15  

15 Trace back (most recent call last):  

File “test.py”, line 8, in  

Print str.index(str, 40);  

Value Error: substring not found shell returned 1

Hope it helped..