How to fix "NameError name 'changePlaying‘is not defined

To fix the "NameError: name 'changePlaying' is not defined" error, you need to ensure that the function or variable 'changePlaying' is defined before it is used.

Here are the steps to fix this error:

1. Check the spelling and capitalization: Make sure that the function or variable name is spelled correctly and matches the case used in the code. Python is case-sensitive, so 'changePlaying' and 'changeplaying' are considered different names.
2. Define the function or variable: If 'changePlaying' is intended to be a function, make sure it is defined before it is called. You can define it using the 'def' keyword followed by the function name and its implementation. For example:
3. def changePlaying(): # Function implementation goes here
4. If 'changePlaying' is intended to be a variable, assign a value to it before using it. For example:
5. changePlaying = True
6. Check the scope: Ensure that the function or variable is defined in the correct scope. If it is defined inside a class or a function, make sure you are accessing it from the appropriate scope.
7. Import the module: If 'changePlaying' is defined in a different module or file, make sure to import that module before using it. You can use the 'import' statement to import the module. For example:
8. import module_name
9. Then, you can access 'changePlaying' using 'module_name.changePlaying'.

Remember to follow the best practices of coding, such as organizing your code into functions and modules, using proper naming conventions, and maintaining code readability.