String rfind() Method in Python 3
The rfind() method returns the last index where the substring str is found, or -1 if
no such index exists, optionally restricting the search
to string[beg:end].
Syntax
|
str.rfind(str,
beg=0 end=len(string))
|
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.
Return Value
This method returns last index if found and -1
otherwise.
Example
|
#!/usr/bin/python3
str1 =
"this is really a string example....wow!!!"
str2 =
"is"
print
(str1.rfind(str2))
print
(str1.rfind(str2, 0, 10))
print
(str1.rfind(str2, 10, 0))
print
(str1.find(str2))
print
(str1.find(str2, 0, 10))
print
(str1.find(str2, 10, 0))
|
Result
|
5
5
-1
2
2
-1
|
