Python Count method is one of the Python String Method which is used to count, and return How many times the sub string occurred in the specified start and end position. Here start, and end index positions are optional. In this article we will show you, How to write Python String Count Function in Python Programming with example.
Python String Count Syntax
The basic syntax of the Python String Count function is as shown below:
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String_Value.count(Substring, Starting_Position, Ending_Position) |
- String_Value: Please select a valid String literal.
- Substring: Please specify the string on which you want to perform Counting.
- Starting_Position: This is an optional parameter. If you want to specify the starting point (starting index position) then, Please specify the index value here. If you Omit this parameter then, count() Function will consider Zero as starting position.
- Ending_Position: This is an optional parameter. If you want to specify the end point (Ending index position) then, Please specify the index value here. If you Omit this parameter then, count() Function will consider the highest index number
Python String Count Example
The following set of examples will help you understand the String Count Function in Python.
PYTHON CODE
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# Python String Count Method Example Str1 = 'We are abc working at abc company with abc Employee'; Str2 = Str1.count('abc') print('First Output of a count() method is = ', Str2) # Performing count() function directly Str3 = 'Find Tutorial at Tutorial Gateway'.count('Tutorial') print('Second Output of a count() method is = ', Str3) # Using First Index while Counting the String Str5 = Str1.count('abc', 12) print('Third Output of a count() method is = ', Str5) # Using First & Second Index while Counting the String Str6 = Str1.count('abc', 12, len(Str1) -1) print('Fourth Output of a count() method is = ', Str6) # Using First & Second Index while Counting Non existing String Str7 = Str1.count('abc', 12, 21) print('Fifth Output of a count() method is = ', Str7) |
OUTPUT
ANALYSIS
First we declared the String variable Str1 and assigned corresponding value using following statement
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Str1 = 'We are abc working at abc company with abc Employee'; |
Following statement will count the number of times the substring ‘abc’ is repeated inside the Str1 using count() function and prints the output
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Str2 = Str1.count('abc') print('First Output of a count() method is = ', Str2) |
The count function in Python allows us to use Starting index position. By specifying starting index position we can increase the performance
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Str5 = Str1.count('abc', 12) print('Third Output of a count() method is = ', Str5) |
The count function in Python allows us to use Starting and ending indices. By specifying starting and ending index position we can increase the performance. Following statement will count the number occurrences from index position 12, and up to the end
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Str6 = Str1.count('abc', 12, len(Str1) -1) print('Fourth Output of a count() method is = ', Str6) |
Following statement will return zero because, count() function will start looking from 12 (means first abc is skipped) and end at index position 21. As we all know second abc is at position 22. It means there are no substrings to count between those indexes.
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Str7 = Str1.count('abc', 12, 21) print('Fifth Output of a count() method is = ', Str7) |
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