40 interview questions on Python for developers (2026)

8 votes2300 runs

Antoine Brennerat Dec 2, 2021

6 votes2297 runs0 comment

Antoine Brennerat Dec 2, 2021

5 votes2300 runs

Antoine Brennerat Dec 2, 2021

5 votes2299 runs0 comment

Antoine Brennerat Dec 2, 2021

5 votes2294 runs0 comment

Antoine Brennerat Dec 2, 2021

5 votes308 runs0 comment

nested lists

El Mehdiat Sep 4, 2023

4 votes2319 runs

list comprehension

Antoine Brennerat Dec 2, 2021

4 votes2300 runs0 comment

Antoine Brennerat Dec 2, 2021

4 votes2298 runs

Antoine Brennerat Dec 2, 2021

4 votes2285 runs0 comment

Antoine Brennerat Dec 2, 2021

4 votes2272 runs2 comments

4 votes1333 runs

4 votes513 runs0 comment

3 votes2286 runs

Antoine Brennerat Dec 2, 2021

3 votes2280 runs1 comment

2 votes2335 runs0 comment

Antoine Brennerat Dec 2, 2021

2 votes2263 runs1 comment

Antoine Brennerat Dec 2, 2021

1 vote2335 runs

Antoine Brennerat Dec 2, 2021

1 vote2322 runs

Antoine Brennerat Dec 2, 2021

1 vote2307 runs

Antoine Brennerat Dec 2, 2021

40 interview questions on Pythonfor developers (2026)

Test your technical skills before an interview of Python with 40 corrected questions. Beginner, Intermediate or Expert level.

40 interview questions on Pythonfor developers (2026)

Test your technical skills before an interview of Python with 40 corrected questions. Beginner, Intermediate or Expert level.

Why is the output of the following code undefined? ``` def f(n): return n + 1 f(n) ```

What is the output of the following code? ``` import asyncio async def read_data(): with open('data.txt', 'r') as f: data = f.read() return data async def main(): data = await read_data() print(data) if __name__ == '__main__': asyncio.run(main()) ```

Write a Python program to open a file in binary mode and write a string to it.

In Python, what is the output of the following code? `valueA = 10; valueB = 10; valueA is valueB`

Create a list of 10 elements in Python

Change the value of a nested list element in Python

Write a Python function that returns a list of the first n numbers of the Fibonacci sequence.

What is the output of the following Python code? ``` G = '123' print(G + 1) ```

Write a Python code that will wait for 40 seconds.

Python: Decorator that prevents the creation of an instance of a class

Write a Python function that returns a copy of anotherlist with number appended to the end.

In Python, which of the following statements are true about the keyword 'with':

Write a Python class with a method that takes two arguments.

Explain the use of super in Python

Write a Python function that returns the sum of the first n integers.

What is the output of the following code? ``` print("\u0041") ```

Define a class method in Python

What is the output of the following code? ``` def f(x): if x == 0: return 1 else: return f(x - 1) + f(x - 2) print(f(3)) ```

What is the value of valueA after the following code is executed? ``` valueA = 10 valueB = 20 valueA = valueB ```

Write a Python code that returns the first element of a list if the list is not empty, otherwise return None.

What is the output of the following code? ``` import asyncio async def read_data(): with open('data.txt', 'r') as f: data = f.read() return data async def main(): data = await read_data() print(data) if name == 'main': asyncio.run(main()) ```