Methods of python string

Functions of python string. Python capitalize(), lower(), upper(), count(), replace(), strip(), split() functions of strings.

 

String Methods of Python:

Method	Description	Example
capitalize()	It converts the first character of the string to upper case	txt.capitalize()
casefold()	casefold method converts the string into lower case	txt.casefold()
lower()	Used to Converts a string into lower case	txt.lower()
title()	The first characters of all words will be upper case	txt.title()
upper()	All characters will be converted to upper case.	txt.upper()
swapcase()	The lower case will be the upper case and the Upper case will be lower case	txt.swapcase()
format()	Used to formats specified values in a string	txt = "Product Priice is {price:.2f} tk." txt.format(price = 49.23423)
join()	Create a string from an iterable	txt = ["Hello", "World"] message = " ".join(txt)
replace()	Used to replace a value with another value	txt.replace("is", "are")
count()	This is used  to get the number of times a specified value occurs in the string	txt.count("is")
find()	Used to search a value in the string. It returns the position.	txt.find("welcome")
index()	Used to search find the index of a value in a string	txt.index("welcome")
rfind()	Used to return the last position of where the value is found.	txt.rfind("casa")
rindex()	Used to return the last position of where the value is found.	txt.rindex("are")
isalnum()	Check if all characters are alphabet or numeric	txt.isalnum()
isalpha()	Check if all characters are in the alphabet	txt.isalpha()
isdecimal()	Check if all characters are decimals	txt.isdecimal()
isdigit()	Check if all characters are digits	txt.isdigit()
islower()	Check if all characters are lower case	txt.islower()
isnumeric()	Check if all characters are numeric	txt.isnumeric()
isspace()	Check if all characters are whitespaces	txt.isspace()
istitle()	Check if words start with Upper case	txt.istitle()
isupper()	Check if all characters are upper case	txt.isupper()
startswith()	Check if a string starts with the specified value	txt.startswith("Welcome")
endswith()	Returns true if the string ends with the given value passed as a parameter.	txt.endswith(".")
center()	This function is used to center a string	txt.center(20),  txt.center(20, "*")
ljust()	Used to Return a left justified version of the string	txt.ljust(20), txt.ljust(20, "*")
rjust()	Used to create right justified version of a string	txt.rjust(20), txt.rjust(20, "*")
zfill()	Fills with 0 values at the beginning of the string with a specified number.	txt.zfill(10)
strip()	Trim the string	txt.strip()
lstrip()	Used to trim left side of the string	txt.lstrip()
rstrip()	Used to trim right side of the string	txt.rstrip()
split()	Create list from a string at the specified separator	txt = "a,b,c" x = txt.split(",")
splitlines()	Create list from s string at line breaks	txt = """Hello boys. How are you? I am fine""" x = txt.splitlines()
partition()	Create a tuple where the string is parted into three parts	txt = "Welcome to ArtofCSE" txt.partition("to")

 

Modify Strings in Python using Mehods:

a = "Bangladesh is my country"
print(a.capitalize())
print(a.lower())
print(a.upper())

print(len(a))
print(a.count("d"))

print(a.replace("is", "are"))
print(a.strip('is'))

l = a.split(' ')
print(l[1])

 

Output:

Bangladesh is my country
bangladesh is my country
BANGLADESH IS MY COUNTRY
24
1
Bangladesh are my country
Bangladesh is my country
is