Have you ever entered a number into a Python program but received an error when trying to perform a calculation? This is a common problem for beginners. It often happens because the data type of a value is different from what the program expects. For example, when you use Python's input() function, the value entered by the user is returned as a string. If you want to perform mathematical calculations with that value, you may need to convert it into a numeric type first. This process is called type conversion . In this article, we will learn what type conversion is, why it is useful, how to convert values using int() , float() , str() , and bool() , and how to avoid common errors. 1. What Is Type Conversion in Python? Type conversion is the process of converting a value from one data type to another. For example, you may convert: A string into an integer. An integer into a floating-point number. A number into a string. A value into a Boolean value. Consider this example: number = ...
When you are learning Python, Interactive Mode is useful for testing small commands. But what happens when you want to write a complete program and save it for later? This is where Script Mode becomes useful. In Script Mode, you write a complete Python program, save it as a file, and then execute that file. For anyone moving from simple Python experiments to actual programs, understanding Script Mode is an important step. What Is Script Mode in Python? Script Mode is a way of writing Python code in a file and executing the complete file as a program. A Python program written in Script Mode is generally saved with the .py extension. For example: calculator.py student.py prime.py hello.py You can write multiple lines of Python code in the file and then run the program. In simple words: Script Mode allows you to write, save, and execute a complete Python program. Interactive Mode vs Script Mode You have already learned about Interactive Mode. The main difference is how the code is ente...