The Python Interactive Shell, also known as REPL (Read-Eval-Print Loop), is an interactive command-line environment where you can write and execute Python code line by line. It allows you to test out code snippets quickly, making it a useful tool for learning, debugging, and experimenting with Python code.
what each part of REPL means:
1. Read: The shell reads the user’s input (a Python statement or expression).
2. Eval: It evaluates the input, executing the Python code.
3. Print: It prints the result of the expression or statement to the console.
4. Loop: It then loops back to prompt the user for more input.
You can start the Python interactive shell by simply typing python (or python3 depending on your setup) in your terminal or command prompt.
Example: print Hello, Friends!
>>> print("Hello, Friends!")
Hello, World!
Example2: Add two numbers
>>> 5 + 7
12
Python Repl – Interview Questions
Q 1: What is Python REPL?
Ans: REPL stands for Read–Eval–Print Loop, an interactive Python environment.
Q 2: When is Python REPL used?
Ans: It is used for quick testing and experimenting with Python code.
Q 3: How do you start Python REPL?
Ans: By typing python or python3 in the terminal.
Q 4: What happens in REPL?
Ans: Python reads input, executes it, and immediately displays the output.
Q 5: Is REPL useful for beginners?
Ans: Yes, it helps beginners learn Python by instant feedback.
Python Repl – Objective Questions (MCQs)
Q1. What does REPL stand for in Python?
Q2. Which of the following best describes Python REPL?
Q3. How can you start the Python REPL environment?
Q4. What happens when you type a Python expression in REPL and press Enter?
Q5. Which symbol indicates that the Python REPL is waiting for your input?