---
title: "Python Interview Prep in 1 Hour: 12 Essential Coding Programs"
description: "Master Python interview prep with 12 quick coding programs. Learn key concepts like palindrome, Fibonacci, prime numbers, sorting, and more in 1 hour."
url: https://srinimf.com/2025/09/10/python-interview-prep-in-1-hour-12-essential-coding-programs/
date: 2025-09-10
modified: 2026-10-10
author: "Srini"
image: https://i0.wp.com/srinimf.com/wp-content/uploads/2025/09/pexels-photo-8378723.jpeg?fit=1880%2C1253&ssl=1
categories: ["Python"]
tags: ["Python Coding Practice", "Python interview questions", "Python Programming", "Python Programs for Interview"]
type: post
lang: en
---

# Python Interview Prep in 1 Hour: 12 Essential Coding Programs

Preparing for a Python interview but running short on time? Don’t worry — with the right practice, even 1 hour is enough to boost your confidence. In this guide, we’ll cover **12 Python programs to practice before an interview** that focus on the most commonly asked coding challenges. From string manipulation and recursion to lists, dictionaries, and problem-solving, these examples will help you quickly refresh the core concepts. Whether you’re preparing for a software developer role, a data engineer, or a Python-focused interview, these coding exercises will sharpen your skills and get you ready to tackle technical questions.

### 1. Reverse a String

```
s = "interview"
print(s[::-1])
```

### 2. Check Palindrome

```
def is_palindrome(s):
    return s == s[::-1]

print(is_palindrome("madam"))
print(is_palindrome("python"))
```

### 3. FizzBuzz (Classic)

```
for i in range(1, 21):
    if i % 3 == 0 and i % 5 == 0:
        print("FizzBuzz")
    elif i % 3 == 0:
        print("Fizz")
    elif i % 5 == 0:
        print("Buzz")
    else:
        print(i)
```

### 4. Fibonacci Sequence (first n numbers)

```
def fibonacci(n):
    a, b = 0, 1
    for _ in range(n):
        print(a, end=" ")
        a, b = b, a + b

fibonacci(10)
```

### 5. Factorial (Recursion)

```
def factorial(n):
    return 1 if n == 0 else n * factorial(n-1)

print(factorial(5))
```

### 6. Find Largest Element in List

```
nums = [10, 34, 56, 7, 89, 23]
print(max(nums))
```

### 7. Remove Duplicates from List

```
nums = [1, 2, 2, 3, 4, 4, 5]
print(list(set(nums)))
```

### 8. Count Character Frequency

```
s = "programming"
freq = {}
for ch in s:
    freq[ch] = freq.get(ch, 0) + 1
print(freq)
```

### 9. Anagram Check

```
def is_anagram(s1, s2):
    return sorted(s1) == sorted(s2)

print(is_anagram("listen", "silent"))
print(is_anagram("hello", "world"))
```

### 10. Find Prime Numbers up to n

```
def primes_upto(n):
    for i in range(2, n+1):
        for j in range(2, int(i**0.5)+1):
            if i % j == 0:
                break
        else:
            print(i, end=" ")

primes_upto(20)
```

### 11. Two Sum Problem

```
nums = [2, 7, 11, 15]
target = 9
seen = {}
for i, num in enumerate(nums):
    if target - num in seen:
        print((seen[target - num], i))
    seen[num] = i
```

### 12. Sort Dictionary by Values

```
d = {"apple": 3, "banana": 1, "cherry": 2}
print(dict(sorted(d.items(), key=lambda x: x[1])))
```

Related[C Language: Here’re 5 Tricky Campus Test Questions](https://srinimf.com/2019/07/17/c-programming-top-examples-for-campus-recruitment/)

✅ If you practice these 12, you’ll cover:

- Strings
- Lists
- Dictionaries
- Loops & conditions
- Recursion
- Problem-solving

Related[10 Must Practice Python Recursive Programs](https://srinimf.com/2024/10/19/10-must-practice-python-recursive-programs/)

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