Python String With Example | String In Python Programming

String :

In Python, a string is a sequence of characters enclosed in quotation marks (either single or double). 

For example:

my_string = "Hello, World!"

There are many built-in functions and methods for manipulating strings in Python. Some common ones include:

len(string): returns the length of a string.

string.upper(): returns a copy of the string with all characters in uppercase.

string.lower(): returns a copy of the string with all characters in lowercase.

string.strip(): returns a copy of the string with leading and trailing whitespace removed.

string.replace(old, new): returns a copy of the string with all occurrences of the specified old string replaced by the specified new string.

string.split(separator): returns a list of substrings in the string, delimited by the specified separator string.

string in substring: returns True if the specified substring is found within the string, False otherwise.

You can also use the + operator to concatenate strings and the * operator to repeat strings.

str1 = "Hello"

str2 = " World!"

greeting = str1 + str2

print(greeting) # "Hello World!"

repeated = str1 * 3

print(repeated) # "HelloHelloHello"

You can also use string formatting to embed variables into a string, using curly braces {} as placeholders.

name = "John"

age = 20

print("My name is {} and I am {} years old.".format(name, age)) # My name is John and I am 20 years old.

You can also use f-strings, which is a new way to embed variables into a string in python 3.6 and above

name = "John"

age = 20

print(f"My name is {name} and I am {age} years old.") # My name is John and I am 20 years old.