Python String

Python String is a sequence of characters. Since it is a sequence, we can use index to access individual characters.

Define String

To define a string literal, we can either surround the sequence of characters in single quotes or double quotes.

x = 'abcd'
x = "abcd"

When we use single quotes to define a string, and would like to have a single quote in the string, we must escape it. The same explanation holds for double quote as well.

x = 'abc\'de'
x = "abc\"de"

Accessing Characters

Since strings are sequences, which means they are ordered. And therefore, we can use index to access individual characters in string.

Python Program

x = 'abcdef'
print(x[0])
print(x[2])
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Output

a
c

String Methods

Refer Python String Methods to have a look at the mostly used String Methods in Python with example programs.

Or, we can go through each of the String methods in the following tutorials.

String Method NameDescription
capitalize()Returns a new string with the first character in the given string converted to upper case.
casefold()Returns a new string with the given string value converted into lower case.
center()Returns a new string with specified length and the given string is centered in this new string.
count()Returns the number of occurrences of a specified value in a string.
encode()Returns a new string which is created from the given string, encoded using specified encoding standard.
endswith()Returns True if the string ends with the specified value, or False if the string does not end with the specified value.
expandtabs()Sets the tab size for the tab characters in the string.
find()Returns the index of the first occurrence of specified value in given string.
format()Formats specified values in a string
format_map()Formats specified values in a string
index()Searches the string for a specified value and returns the position of where it was found
isalnum()Returns True if all characters in the string are alphanumeric
isalpha()Returns True if all characters in the string are in the alphabet
isdecimal()Returns True if all characters in the string are decimals
isdigit()Returns True if all characters in the string are digits
isidentifier()Returns True if the string is an identifier
islower()Returns True if all characters in the string are lower case
isnumeric()Returns True if all characters in the string are numeric
isprintable()Returns True if all characters in the string are printable
isspace()Returns True if all characters in the string are whitespaces
istitle()Returns True if the string follows the rules of a title
isupper()Returns True if all characters in the string are upper case
join()Joins the elements of an iterable to the end of the string
ljust()Returns a left justified version of the string
lower()Converts a string into lower case
lstrip()Returns a left trim version of the string
maketrans()Returns a translation table to be used in translations
partition()Returns a tuple where the string is parted into three parts
replace()Returns a string where a specified value is replaced with a specified value
rfind()Searches the string for a specified value and returns the last position of where it was found
rindex()Searches the string for a specified value and returns the last position of where it was found
rjust()Returns a right justified version of the string
rpartition()Returns a tuple where the string is parted into three parts
rsplit()Splits the string at the specified separator, and returns a list
rstrip()Returns a right trim version of the string
split()Splits the string at the specified separator, and returns a list
splitlines()Splits the string at line breaks and returns a list
startswith()Returns true if the string starts with the specified value
strip()Returns a trimmed version of the string
swapcase()Swaps cases, lower case becomes upper case and vice versa
title()Converts the first character of each word to upper case
translate()Returns a translated string
upper()Converts a string into upper case
zfill()Fills the string with a specified number of 0 values at the beginning