How to solve name error in python?

How to solve name error in python?

`NameError` in Python occurs when you try to use a variable or a name that hasn't been defined or is not in the current scope. To solve a `NameError`, you can take the following steps:

1. Check the spelling: Verify that the variable or name you're using is spelled correctly. Python is case-sensitive, so make sure the case matches as well.

2. Check the scope: If you're trying to access a variable defined inside a function or a conditional statement, ensure that the variable is defined in the appropriate scope. Variables defined inside a function, for example, are local to that function and cannot be accessed outside of it.

3. Check the order of statements: If you're trying to access a variable before it's been defined, you'll encounter a `NameError`. Make sure the variable is defined or assigned a value before you use it.

4. Check the module or package import: If you're using a variable from an external module or package, ensure that you have imported it correctly. Verify that the module or package is installed and that you have imported it using the appropriate import statement.

5. Check for typos or missing symbols: Look for any typos or missing symbols in your code, such as missing parentheses, colons, or quotation marks. These errors can lead to a `NameError` if the code is not properly formatted.

6. Run the code in a fresh environment: If you've made recent changes to your code and are encountering a `NameError`, try running the code in a fresh environment or restarting your Python interpreter. Sometimes, cached or outdated variables can cause issues.

By following these steps, you should be able to identify and resolve most `NameError` issues in your Python code.