---
title: "12 Tricky Python Coding Interview Questions"
description: "Python frequently asked interview questions shared in this post. Useful to read quickly and for your next interview."
url: https://srinimf.com/2020/02/23/12-frequently-asked-python-interview-questions/
date: 2020-02-23
modified: 2026-10-07
author: "Srini"
image: https://i0.wp.com/srinimf.com/wp-content/uploads/2020/02/12-python-frequently-asked-questions.jpg?fit=1200%2C700&ssl=1
categories: ["Python"]
tags: ["Python Faq", "Python Frequently Asked Questions", "Python tips and tricks"]
type: post
lang: en
---

# 12 Tricky Python Coding Interview Questions

Python is the leading programming language. Below, you will find 12 frequently asked Python coding interview questions.

Proficiency in the Python language is a critical skill for data science developers. To write code as a technical resource, one must be strong in basics. To prove your skills in interviews, you should answer o this level of questions.

Advertisements

## 12 Python tough interview questions

**1. Why is Python different from other languages such as Java, C, C++?**

Basically, Python is an interpreted language. So, the Python code will execute dynamically. Compilation of Python program not required.

**2. [How to](https://srinimf.com/2022/02/21/how-to-slice-a-string-substring-in-python/) give Comments in Python code?**

The first letter should be ‘#’. This works as commented line in Python.

**3. What is indention in Python? and why this is important?**

Python supports indentation. Like COBOL, if you remember, there are [indentation rules](https://srinimf.com/2019/10/13/python-code-indentation-rules-handy-guide/) that ‘IF” statement should start from 12th position.

```
Print ("Hello")
      Print ("World")
```

Both the ‘Print’ statements not in the same **Column**. So Python gives an error during execution.

**4. What is Variable concept in Python?**

In Python, you can just assign the value to a variable dynamically. For example,** “myTown = 201”**, now if you print(myTown), you will get 201.

To define a variable, Python follows some rules.

Cannot start variable names with **numbers**.

![12 Tricky Python Coding Interview Questions](https://i0.wp.com/srinimf.com/wp-content/uploads/2020/02/camel.png?resize=230%2C192&ssl=1)

> Down, UP, Down, UP

**5). What are the top Number Data types in Python?**

Those are “int”, “float”.

**6). What is Concatenation technique in Python?**

You can use “+”. Check the below example:

```
firstName = "Srini"
lastName = "mf"
name = firstName + lastName
Result: Srinimf
```

---

**Debugging tools in python**

- [Tools to Debug Python code.](https://wiki.python.org/moin/PythonDebuggingTools)

---

**7. [How to](https://srinimf.com/2023/05/28/how-to-print-and-count-blank-spaces-in-python/) accept user Input in Python?**

You need to use **input** parameter.

```
newInput = input("abcdefghijk")
print(newInput)
Result:abcdefghijk
```

**8. Why Colon (“:”) is required in IF statement?**

To give statements after the IF, the colon is mandatory.

```
IF sale > 100 :
   sale = sale + 20
else :
   sale = sale - 20
```

**9. What is the difference between Assign and Equal?**

If you give single = , that is called assign.

If you give ==, that is called equal.

**10. What are the top String handling methods in Python?**

| Operation | Description |
| --- | --- |
| *substring* in *s* | Returns True if the string *s* contains *substring* and False otherwise. |
| *s*.count(*substring*) | Returns the number of non-overlapping occurrences of *substring* in the string *s*. |
| *s*.endswith(*substring*) | Returns True if the string *s* ends with the substring and False otherwise. |
| *s*.find(*substring*) | Returns the lowest index in the string *s* where *substring* begins, or −1 if *substring* is not found. |
| *s*.startswith(*substring*) | Returns True if the string *s* begins with *substring*and False otherwise. |

**11. What are the top Looping Techniques in Python?**

Those are “FOR” and “WHILE”

**12. Do we need ****to declare int or float data types before hand?**

Nope, We can dynamically assigns the data type.

```
total = 0.0
count = 0
inputStr = input("Enter value: ")
while inputStr != "" :
   value = float(inputStr)
   total = total + value
   count = count + 1
   inputStr = input("Enter value: ")

if count > 0 :
   average = total / count
else :
   average = 0.0
```

**References**

- FAQ [Python.org](https://docs.python.org/3/faq/general.html)
- [How to debug using pudb tool](https://documen.tician.de/pudb/starting.html)
- [How to debug using pdb tool](https://docs.python.org/2/library/pdb.html)
- How to debug using ipdb tool

Related Posts

- [Top 7 Python features need to have in finger tips](https://srinimf.com/2017/03/12/the-top-7-python-features-ready-to-have-in-finger-tips/)DateMarch 12, 2017
- [7 Tricky Python Interview Questions](https://srinimf.com/2023/02/04/7-tricky-python-interview-questions/)DateFebruary 4, 2023
- [Python Theory Questions for Interviews](https://srinimf.com/2025/11/14/python-theory-questions-for-interviews/)DateNovember 14, 2025

Books

- [Python Advanced and in-depth](https://www.amazon.in/dp/938932842X/?tag=srinimf-21)

### Share this:

-
- [Tweet](https://twitter.com/share)
- [![](https://i0.wp.com/assets.pinterest.com/images/pidgets/pinit_fg_en_rect_gray_20.png)](https://www.pinterest.com/pin/create/link/?url=https%3A%2F%2Fsrinimf.com%2F2020%2F02%2F23%2F12-frequently-asked-python-interview-questions%2F&media=https%3A%2F%2Fi0.wp.com%2Fsrinimf.com%2Fwp-content%2Fuploads%2F2020%2F02%2F12-python-frequently-asked-questions.jpg%3Ffit%3D1200%252C700%26ssl%3D1&description=12%20Tricky%20Python%20Coding%20Interview%20Questions)
-
- [Share on Tumblr](https://www.tumblr.com/share)
- [Share on WhatsApp (Opens in new window) WhatsApp](https://srinimf.com/2020/02/23/12-frequently-asked-python-interview-questions/?share=jetpack-whatsapp)
- [More](#)
-

- [Print (Opens in new window) Print](https://srinimf.com/2020/02/23/12-frequently-asked-python-interview-questions/?share=print)
- [Share on Reddit (Opens in new window) Reddit](https://srinimf.com/2020/02/23/12-frequently-asked-python-interview-questions/?share=reddit)
- [Share on Telegram (Opens in new window) Telegram](https://srinimf.com/2020/02/23/12-frequently-asked-python-interview-questions/?share=telegram)
- [Email a link to a friend (Opens in new window) Email](mailto:?subject=%5BShared%20Post%5D%2012%20Tricky%20Python%20Coding%20Interview%20Questions&body=https%3A%2F%2Fsrinimf.com%2F2020%2F02%2F23%2F12-frequently-asked-python-interview-questions%2F&share=email)
-

### Like this:

Like Loading…