Session – 11(Strings 3-3)

• String Built-in Methods (2/2)

String Built-in Methods (2/2)

Function	Description
isalnum()	Python string isalnum() function returns True if it’s made of alphanumeric characters only.
isalpha()	Python String isalpha() function returns True if all the characters in the string are alphabets, otherwise False.
isdecimal()	Python String isdecimal() function returns True if all the characters in the string are decimal characters, otherwise False.
isdigit()	Python String isdigit() function returns True if all the characters in the string are digits, otherwise False.
isidentifier()	Python String isidentifier() function returns True if the string is a valid identifier according to the Python language definition.
islower()	Python String islower() returns True if all cased characters in the string are lowercase and there is at least one cased character, otherwise it returns False.
isnumeric()	Python String isnumeric() function returns True if all the characters in the string are numeric, otherwise False. If the string is empty, then this function returns False.
isprintable()	Python String isprintable() function returns True if all characters in the string are printable or the string is empty, False otherwise.
isspace()	Python String isspace() function returns True if there are only whitespace characters in the string, otherwise it returns False.
istitle()	Python String istitle() returns True if the string is title cased and not empty, otherwise it returns False.
isupper()	Python String isupper() function returns True if all the cased characters are in Uppercase.
rjust(), ljust()	Utility functions to create a new string of specified length from the source string with right and left justification.
swapcase()	Python String swapcase() function returns a new string with uppercase characters converted to lowercase and vice versa.
partition()	Python String partition() function splits a string based on a separator into a tuple with three strings.
splitlines()	Python String splitlines() function returns the list of lines in the string.
title()	Python String title() function returns a title cased version of the string.
zfill()	Python String zfill(width) function returns a new string of specified width. The string is filled with 0 on the left side to create the specified width.