Python Strings - Tutorial Kart
[Pages:4]Python Strings
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])
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 String Method Name Name
capitalize()
Description Description
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 s t ri n g .
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
i s l o w e r()
Returns True if all characters in the string are lower case
i s n u m e ri c()
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
i s u p p e r()
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
l s t ri p ()
Returns a left trim version of the string
Smtrainkge tMraetnhso(d) Npaamrteition() replace() rfind()
rindex()
rj u s t () rpartition() rs p l i t () rs t ri p () split() splitlines() s t a rt s w i t h () s t ri p () swapcase() title() t ra n s l a t e () upper() zfill()
DReestcurripntsiona translation table to be used in translations Returns a tuple where the string is parted into three parts Returns a string where a specified value is replaced with a specified value Searches the string for a specified value and returns the last position of where it was found Searches the string for a specified value and returns the last position of where it was found Returns a right justified version of the string Returns a tuple where the string is parted into three parts Splits the string at the specified separator, and returns a list Returns a right trim version of the string Splits the string at the specified separator, and returns a list Splits the string at line breaks and returns a list Returns true if the string starts with the specified value Returns a trimmed version of the string Swaps cases, lower case becomes upper case and vice versa Converts the first character of each word to upper case Returns a translated string Converts a string into upper case Fills the string with a specified number of 0 values at the beginning
Python Programming
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Python Collections
Python Strings Python Lists Python Tuples Python Dictionary Python Sets
Libraries
Python Numpy Tutorial Python SciPy Tutorial Python Pandas Tutorial Python Matplotlib Tutorial
Advanced Topics
Python Multithreading
Useful Resources
Python Interview Questions
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