Exercise 4-3 Solution Python Crash Course Chapter 4: Working With Lists

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📘 Python Crash Course – Chapter 4: Working With Lists – Exercise 4-3 Solution

Welcome to another solution from Python Crash Course by Eric Matthes.

📝 Exercise 4-3

Task:
Use a for loop to print the numbers from 1 to 20, inclusive

✅ Solution Code:


for no in range(1,21):
    print(no)

🧠 Code Explanation:

This Python code demonstrates how to use a for loop to print a range of numbers. Here's how it works:

  1. Use the range() function:

    The range(1, 21) function generates a sequence of numbers starting from 1 and ending at 20 (inclusive). The first argument specifies the starting number, and the second argument specifies the number up to which the range goes, but it excludes the second argument itself. Therefore, the range includes numbers from 1 to 20.

  2. Iterate through the range:

    A for loop is used to iterate through each number in the range. The variable no takes on each value in the range, one at a time.

  3. Print each number:

    The print() function is used inside the loop to display each number in the range on a new line.

🔍 Output:


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

📚 Related Exercises from Chapter 4:

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