String Methods in Python

Python has a set of built-in methods that we can use on a given strings.

The upper() method returns the string in upper case:

mystr="Welcome to Neoogy"
print(mystr.upper())

Output will be

WELCOME TO NEOOGY

The lower() method returns the string in lower case:

mystr="Welcome to Neoogy"
print(mystr.lower())

Output will be

welcome to neoogy

The capitalize() method returns the first character to upper case:

mystr="welcome to neoogy"
print(mystr.capitalize())

Output will be

Welcome to neoogy

The swapcase() method returns the string in reverse case:

mystr="Welcome to Neoogy"
print(mystr.swapcase())

Output will be

wELCOME TO nEOOGY

The title() method returns the first character of each word to upper case:

mystr="welcome to neoogy"
print(mystr.title())

Output will be

Welcome To Neoogy

The isalpha() method returns True if all characters in the string are in the alphabet:

mystr="Neoogy"
print(mystr.isalpha())

Output will be

True

The isalnum() method returns True if all characters in the string are alphanumeric:

mystr="Neoogy1"
print(mystr.isalnum())

Output will be

True

The isdigit() method returns True if all characters in the string are digits:

mystr="1234567"
print(mystr.isdigit())

Output will be

True

The replace() method returns a string where a specified value is replaced with a specified value:

mystr="Google"
print(mystr.replace("G","N")) #Here G is replace with N

Output will be

Noogle

The index() method returns the index value (First occurrence) of the chatacter from a string:

mystr="Neoogy"
print(mystr.index("o"))

Output will be

2

The strip() method removes any leading (spaces at the beginning) and trailing (spaces at the end) characters (space is the default leading character to remove):

mystr=" Neoogy "
print(mystr.strip())

Output will be

Neoogy

OR

mystr="W.Neoogy,,;,"
print(mystr.strip("W.;,"))

Output will be

Neoogy

The split() method splits a string into a list.(By default it split a string in whitespace)

mystr="Welcome to Neoogy"
print(mystr.split())

Output will be

['Welcome', 'to', 'Neoogy']

OR

mystr="Welcome to, Neoogy"
print(mystr.split(",")) #Split the string, using comma

Output will be

['Welcome to', ' Neoogy']

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