def name_of_function(): codeCopy A Python function should always start with the def keyword, which stands for define. Then we have the name of the function (typically should be in lower snake case), followed by a pair of parenthesis() which may hold parameters of the function and a sem...
# Indentation is crucial; it defines the code block within the function # Example: result = parameter1 + parameter2 return result # Optional return statement Explanation: “def” is the keyword used to define a function in Python. “function_name” is the name you give to your function. It...
# define Python user-defined exceptionsclassInvalidAgeException(Exception):"Raised when the input value is less than 18"pass# you need to guess this numbernumber =18try: input_num = int(input("Enter a number: "))ifinput_num < number:raiseInvalidAgeExceptionelse:print("Eligible to Vote")exc...
How to Define a Function: User-Defined Functions (UDFs) The four steps to defining a function in Python are the following: Use the keyword def to declare the function and follow this up with the function name. Add parameters to the function: they should be within the parentheses of the fu...
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While importing the decimal module, we can use the Decimal() function to define either a positive or negative infinite value. In the Decimal() function, we can pass Infinity as a string value, but this will be for a positive value. If we want to define negative, we will include the mi...
In this tutorial, you'll learn how to remove or replace a string or substring. You'll go from the basic string method .replace() all the way up to a multi-layer regex pattern using the sub() function from Python's re module.
2. Define Functions Before Calling Them Move your function definitions to above the places where you call them. Remember: Python processes scripts from top to bottom! 3. Import Any External Modules If the undefined function lives in an external module, don’t forget to import that module first...
You don’t have to define the sorted() function. It’s a built-in function that’s available in any standard installation of Python. You’re ordering the values in numbers from smallest to largest when you call sorted(numbers). When you pass no additional arguments or parameters, sorted()...
In this example, we define a functionon_text_modified()that will be called whenever the text in the text box is modified. We bind this function to the<<Modified>>event usingtext_box.bind(). Handle Key Press Events You can handle specific key press events in the text box using the<Key...