How to fix "undefined name" error message in Python?
May 4, 2019 · I am creating a simple calculator with Python as my first "bigger" project. I am trying to use def function and when i am trying to call that function it gives "undefined name" error …
NameError: name is not defined in Python [with 4+ Examples] - Python …
Feb 19, 2024 · How to fix NameError: name is not defined in Python. In Python, there are several ways to handle NameError depending on the specific scenario and requirements of our code. …
Python Error: Name Is Not Defined. Let's Fix It - Codefather
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 …
Undefined Variable Nameerror In Python - GeeksforGeeks
Feb 2, 2024 · Encountering the "NameError: name 'var' is not defined" is a common experience for Python users. In Python, variable declaration is a straightforward process of assigning a …
How to Fix NameError in Python - PyTutorial
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 …
NameError: name 'X' is not defined in Python [Solved] - bobbyhadz
Apr 8, 2024 · To solve the Python "NameError: name is not defined", make sure: You aren't accessing a variable that doesn't exist. You aren't accessing a variable, function or class …
NameError: Name plot_cases_simple is Not Defined – How to Fix …
Jun 27, 2022 · In Python, the NameError occurs when you try to use a variable, function, or module that doesn't exist or wasn't used in a valid way. Some of the common mistakes that …
10 Common Causes of NameError in Python and How to Fix Them
Causes of NameError in Python 1. Undefined Variable or Function. The most common cause of NameError is accessing an undefined variable or function. When you attempt to access a …
Python NameError: name is not defined - Stack Overflow
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 …
How to troubleshoot undefined names | LabEx
Learn effective Python debugging techniques to identify and resolve undefined name errors, improve code quality, and enhance programming skills with practical troubleshooting strategies.