Various Built-in Functions in Python

Python supports various built in functions to manipulate strings

• len()
• ord()
• chr()
• capitalize()
• center()
• isalnum()
• isalpha()
• isdigit()
• lower()
• islower()
• upper()
• isupper()
• title()
• swapcase()

len()

len() returns the length of characters present in strings. It is used in various fields to calculate the number of characters.

Examples:

#To calculate the no of characters
Blog = "Iterathon"
print(len(Blog))

#Output
9

ord()

ord() returns a the ASCII value of the single character.

Examples:

#To find ASCII Value
print(ord('A'))

#Output
65

chr()

chr() returns a characters are equally represented by ASCII values.

Examples:

#To find a characters equal to ASCII values
print(chr(65))

#Output
A

To know more about ASCII (American Standard Code for Information Interchange). Visit this site: https://www.ascii-code.com/ (not promotion, just for useful knowledge)

captalize()

capitalize() is used to capitalize a first letter of the string.

Examples:

#capitalize first letter in string
blog = "iterathon"
print(blog.capitalize())

#Output
Iterathon

center()

center() is used to center the given word with fill character.

syntax: center(width, fill character)

Example:

#To center the string with specified character
Blog = "Iterathon"
print(Blog.center(15,'*')

#Output
***Iterathon***

isalnum()

if the string contains only alphabets and numbers it returns True, otherwise False.

Example 1:

Blog = "Iterathon"
print(Blog.isalnum())

#Output
True

Example 2:

Blog = "Iterathon-Blog"
print(Blog.isalnum())

#Output
False

isalpha()

If the string contains only letters it returns True, otherwise return False.

Example:

Blog = "Iterathon"
print(Blog.isalpha())

#Output
True

isdigit()

If the string contains only numbers it returns True, Otherwise it returns False.

Example:

Blog = "12345"
print(Blog.isdigit())

#Output
True

lower()

lower() is used to convert all characters in a string to lowercase.

Example:

Blog = "ITERATHON"
print(Blog.lower())

#Output
iterathon

islower()

If the string is in lowercase returns True otherwise False.

Example:

Blog = "Iterathon"
print(Blog.islower())

#Output
False

upper()

upper() is used to convert all characters in a string to uppercase.

Example:

Blog = "Iterathon"
print(Blog.upper())

#Output
ITERATHON

isupper()

If the string is in uppercase returns True otherwise False.

Example:

Blog = "Iterathon"
print(Blog.isupper())

#Output
False

title()

title() function returns a string in title format.

Example:

Blog = "iterathon"
print(Blog.title())

#Output
Iterathon

swapcase()

It converts all uppercase to lowercase and all lowercase to uppercase.

Example:

Blog = "ITERAthon"
print(Blog.swapcase())

#Output
iteraTHON

For More Knowledge

Important List Operations in Python: https://iterathon.tech//important-list-operations-in-python/

Important List Operations in Python

LEARN LITTLE BY LITTLE TO CHANGE THE TECH WORLD