Thursday, September 5, 2019

Python String Methods

String manipulations are an integral part of any programming language. Python is no different. The makers of python have provided a rich collection of built-in string methods to suit almost any kind of string processing. With the help of these python in-built methods you can trim, extract a substring, format, count, etc almost any string.

Below we have listed built-in python methods for strings. By clicking on each string method you can see how they can be used with examples.

 Python String Methods
 Description
casefold()
Python string method returns a casefold copy of string, used for caseless matching.        
capitalize()
Python string method returns a copy of string with first character capitalised and remaining in lowercase.
center()
Python string method returns string centered in a provided width.
count()
Python string method returns the number of occurrences of a substring in a given string.
encode()
Python string method returns encoded version of the given string.
endswith()
Python string method returns True if a string ends with the given suffix. 
expandtabs()
Python string method specifies the amount of space to be replaced with the “\t” symbol in the string.
find()
Python string method returns the lowest index of the substring if it is found in a given string.
format()
Python string method used for multiple substitutions and value formatting.
format_map()
Python string method used to return a dictionary key value.
index()
Python method searches an element in the list and returns its index.
isalnum()
Python string method checks if  all the characters in a string is alphanumeric or not.
Python string built-in method used for string handling.
isascii()
Python string method returns all characters in the string are ASCII or not.
isdecimal()
Python string method checks if all characters in the string are decimal characters.
Python string method determines whether the given character is a digit.
isidentifier()
Python string method checks whether a string is a valid identifier.
islower()
Python string method checks characters in the string are lowercase or not.
isnumeric()
Python string method determines whether all the characters of the string are numeric characters or not.
isprintable()
Python string method checks if all characters in the string are printable or the string is empty.
isspace()
Python string method checks if there are only whitespace characters in the string.
istitle()
Python string method determines if the string is a title cased string
isupper()
Python string method checks the given string is either in uppercase, or not.
join()
Python string method returns a string in which the elements of a sequence have been joined.
ljust()
Returns the string left justified.
lower()
Returns returns the lowercased string.
lstrip()
Python string method returns a copy of the string with leading characters are removed.
maketrans()
This static method returns a translation table usable for translate().
partition()
This method is used for splitting the string.
replace()
replace method is used for string substitution.
rfind()
This python method returns the highest index of the substring if found in given string.
rindex()
Python method returns the highest index of the substring inside the string, if found.
rjust()
This method returns the string right justified.
rpartition()
This method is used for splitting the string.
rsplit()
Python string method returns a list of strings after breaking it in smaller ones.
rstrip()
Python string returns a copy of the string with trailing characters removed.
This method returns a list of strings after breaking the given string by the specified separator.
splitlines()
Python method splits the string based on the lines.
startswith()
Checks if string starts with the given prefix.
strip()
Python string method returns a string with both leading and trailing characters removed.
swapcase()
Python method converts all uppercase characters to lowercase and vice versa.
title()
Converts a given string to titlecased.
translate()
Returns the string where each character has been mapped through the given translation table.
upper()
Returns a string in uppercase.
zfill()
Python string method returns a copy of the string left filled with ASCII '0'.




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