F-string in Python

 ' f-string ' Formatting

Python f-strings are a simple and efficient way to format strings. The f-strings make it easy to embed variables directly into a string.

Introduced in Python version 3.6 in late 2016, f-strings significantly changed the conventional method of using separate formats for different data types such as floats, integers, and strings. 

Here's the basics:

How to Use:

Start your string with an f or F before the quotation marks.

Inside the string, put any variables or expressions you want to use inside curly braces {}.

name = "Romanch"

age = 25

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

Output: My name is Romanch and I am 25 years old.

Why f-strings?

• Readable: It’s easy to see what the final string will look like, and the code is concise.
  
  
• Efficient: f-strings are faster than other formatting methods; like format() or %.
  
  
• Flexible: You can include expressions and calculations inside {}, not just variables.
  
  

x = 5

y = 10

print(f"The sum of {x} and {y} is {x + y}.")

Output: The sum of 5 and 10 is 15.




Formatting with f-strings:

• You can format numbers, dates, and more with f-strings.

price = 49.9876

print(f"The price is ${price:.2f}")

Output: The price is $49.99







In short, f-strings make it easy to create formatted strings by directly embedding variables or expressions in a readable and efficient way!