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Converting Data Types with Confidence: Crafting a Python Function to Handle Integers, Floats, and Strings

Introduction to exception handling

Max N
3 min readJun 3, 2023
Photo by Markus Spiske on Unsplash

Introduction

In this tutorial, we’ll explore a Python programming problem that involves writing a function to convert various data types to their corresponding integer or floating-point number representation. The function will accept int, float, and str inputs and return the appropriate number, while providing custom error messages for invalid inputs.

By the end of this post, you’ll have a better understanding of how to work with different data types, handle edge cases, and create custom error messages in Python.

Step 1: Defining the Function

First, let’s define a function called num that takes a single argument, ip, which is the input value:

def num(ip):
# Convert the input to the corresponding number

Step 2: Checking the Input Data Type

Inside the function, we’ll check the data type of the input ip using the isinstance() function. This function takes two arguments: the value to be checked and the data type to be compared against. We’ll use it to determine if the input is an int…

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Max N
Max N

Written by Max N

A writer that writes about JavaScript and Python to beginners. If you find my articles helpful, feel free to follow.

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