Aug 30, 2024 · To specifically handle NameError in Python, you need to mention it in the except statement. In the following example code, if only the NameError is raised in the try block then an error message will be printed on the console. def geek_message(): try: geek = "GeeksforGeeks" return geeksforgeeks except NameError: return "NameError occurred.

Feb 19, 2024 · 1. How to solve NameError in Python by checking for name existence. Before using a variable or calling a function, check if it exists to avoid NameError: name is not defined in Python. We can use the in-operator or hasattr() function in …

Feb 23, 2025 · Fixing a NameError involves identifying the root cause and correcting it. Here are some steps to help you resolve it. 1. Check for Typos. Double-check your code for any misspelled variable or function names. Correcting typos often resolves the issue. 2. Define Variables and Functions Before Use.

Feb 11, 2013 · The solution to this problem is to invoke your classes and functions after you define them. Python does not have any way to forward declare classes or methods so the only option is to put the invocations of functions at the end of the program rather than the beginning.

Nov 17, 2014 · Your specific issue of NameError: name 'guess' is not defined is because guess is defined in your main function, but the while loop that it is failing on is outside of that function. Your indention is entirely wrong for this application.

Jul 2, 2020 · In this article I will explain you what this error is and how you can quickly fix it. What causes a Python NameError? The Python NameError occurs when Python cannot recognise a name in your program. A name can be either related to a built-in function or to something you define in your program (e.g. a variable or a function).

Mar 3, 2025 · Learn how to fix Python NameError in functions and scope. Understand common causes and solutions with examples for beginners.

Feb 23, 2025 · Fixing a NameError is usually straightforward. Here are some tips to help you resolve it. First, check for typos in your variable names. Make sure you are using the correct case and spelling. Ensure that all variables are defined before you …

In this article, we will explore the common causes of NameError in Python and how to solve them. We will also provide useful tips to help you avoid these errors in the future. 1. Undefined Variable or Function. The most common cause of NameError is accessing an undefined variable or …

return "Not an integer or float!" else: return abs(thing) You simply do not have thing defined in distance_from_zero(thing). input is not defined. to define a variable, i cannot set to equal input ? type(thing) != int or float will evaluate to one of (True, float), …