Python counts the number of characters

Python counts the number of characters

Python count() method

Description

The Python count() method is used to count the number of times a certain character appears in a string. Optional parameters are the start and end positions of the string search.

Syntax

count() method syntax:

str.count(sub, start= 0,end=len(string))

Parameters

sub -- Searched Substring

start -- The position in the string where the search begins. The default is the first character, and the index value of the first character is 0.

end -- The position in the string where the search ends. The first character in the string has index 0. Defaults to the last position of the string.

Return value

This method returns the number of times the substring appears in the string.

Example

The following example shows an example of the count() method:

Example (Python 2.0)

#!/usr/bin/python
 
str = "this is string example....wow!!!";
 
sub = "i";
print "str.count(sub, 4, 40) : ", str.count(sub, 4, 40)
sub = "wow";
print "str.count(sub) : ", str.count(sub)

Above example The output results are as follows:

str.count(sub, 4, 40) :  2
str.count(sub) :  1

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