... We want to keep some statistics on how often the function is misused and throws an exception, but we have no intention of actually handling the exception. 10. nilaybnrj Unladen Swallow. As you can… Given a piece of code that can throw any of several different exceptions, and one needs to account for all of the potential exceptions that could be raised without creating duplicate code or long, meandering code passages. A Python function can return multiple values Python function doesn’t return anything unless and until you add a return statement. A Python function can return only a single value A function can take an unlimited number of arguments. Demerits of Python Exception Handling. Multiple Exception Handling in Python. Like, programs that make use try-except blocks to handle exceptions will run slightly slower, and the size of your code will increase. Statements must have the same indentation level (usually 4 spaces). Making use of Python exception handling has a side effect, as well. Optional documentation string (docstring) to describe what the function does. What is the output of the following code. Functions in Python are first class objects, which means they can be assigned to a variable, passed as an argument, and return from another function and store that in any data structure. An optional return statement to return a value from the function. Between the ability to return multiple values from a function and the ability to return values of different types (e.g.

Aug-05-2018, 06:16 AM . Unable to return value from callback function of a button in Python Tkinter. Posts: 4 Threads: 3 Joined: Aug 2018 Reputation: 0 Likes received: 0 #1. Hi Team I am trying to get the input written in an Entry box using Tkinter, But whenever I am trying to do so I am not getting the desired result..Instead a None is getting returned. Example of a function Ideally, we want to an exception raised in _do_calculation to be flow back to the user code as normal. One or more valid python statements that make up the function body. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.