What is f’ Python [With Examples]

In Python, f' is used to create formatted strings, also known as f-strings or formatted string literals. It is a concise and convenient way to embed expressions inside string literals, allowing you to interpolate variables and expressions directly into the string.

To define an f-string, you prefix the string with the letter “f” or “F” and enclose the expressions to be interpolated within curly braces {}. Here’s a simple example:

name = "Alice"
age = 25

greeting = f"Hello, {name}! You are {age} years old."
Code language: Python (python)


Hello, Alice! You are 25 years old.
Code language: Python (python)

In this example, the variables name and age are enclosed within curly braces inside the f-string. When the string is evaluated, the values of the variables are inserted into the string at their respective positions.

F-strings can also include expressions and function calls. For example:

a = 10
b = 5

result = f"The sum of {a} and {b} is {a + b}."
Code language: Python (python)


The sum of 10 and 5 is 15.Code language: Python (python)

In this case, the expression a + b is evaluated and its result is included in the f-string.

F-strings offer a convenient and readable way to create formatted strings in Python, making it easier to compose complex output messages by combining variables and expressions directly within the string itself.

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  • Yaryna Ostapchuk

    I am an enthusiastic learner and aspiring Python developer with expertise in Django and Flask. I pursued my education at Ivan Franko Lviv University, specializing in the Faculty of Physics. My skills encompass Python programming, backend development, and working with databases. I am well-versed in various computer software, including Ubuntu, Linux, MaximDL, LabView, C/C++, and Python, among others.

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