How to Dynamically Change Code in Python Based on User Input: A Simple Guide

Learn how to modify your Python code so that it takes user input to change the outcome dynamically. Follow this `step-by-step` guide to implement user-driven programming.
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How to Dynamically Change Code in Python Based on User Input: A Simple Guide

Have you ever wanted to enhance your Python code so that it can respond to user input directly? If so, you’re in the right place! In this guide, we will go through a simple, effective method to take user input and utilize it to change how your code operates. We’ll use a practical example involving phone numbers and the phonenumbers library.

The Problem: Making Your Code Interactive

You might be working with code that parses phone numbers and extracts information like location and carrier details. However, you want to go a step further: you want the program to accept user input for the phone number instead of hardcoding it. Here’s a snippet of the existing code:

[[See Video to Reveal this Text or Code Snippet]]

The Solution: Using Input and f-strings

To address this issue, we need to utilize Python's built-in input() function, which allows users to input data at runtime. By storing the input into a variable, we can dynamically set the phone number used in our parsing function.

Step-by-Step Solution

Get User Input: First, you will prompt the user to enter their phone number.

Store the Input: Save the user's input into a variable.

Here’s how you can implement these steps in the code:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code Changes

input("What is your phone number? \n"): Prompts the user to enter their phone number, which is stored in the user_input variable.

The rest of the code remains unchanged but now acts based on the user-provided input rather than a hard-coded value.

Conclusion

By following these steps, you can make your Python code interactive and dynamic. This small change opens up a world of possibilities for user-driven programming. No more hardcoded values! Your program can now adapt to the needs of the user on the fly.

Give it a try! Next time you write a piece of code, ponder how you can allow user input to influence the flow of your program. Happy coding!