Скачать или смотреть Solving the NameError in Your Python Code: Importing Functions Made Easy

Discover how to fix the NameError when importing functions from another module in Python. Learn about the importance of module referencing and how to structure your projects properly.
---
This video is based on the question https://stackoverflow.com/q/63121209/ asked by the user 'StillLearnin' ( https://stackoverflow.com/u/14004909/ ) and on the answer https://stackoverflow.com/a/63121296/ provided by the user 'Rilazy' ( https://stackoverflow.com/u/6867232/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Imported functions aren't working even with _init_

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Resolving the NameError in Your Python Code: A Guide for Beginners

Programming can often feel overwhelming, especially when you're just starting out. As an aspiring programmer, you may run into certain challenges that can be frustrating to understand. One common issue is encountering errors when importing functions from another file or module. In this guide, we'll tackle an error that many beginners face: the NameError when calling an imported function.

Understanding the Problem

In your scenario, you're working on a fun project to create a game of hangman, and you have set up your project in a structured way. Unfortunately, you're hitting a roadblock when the program tries to call the square function from your polygon.py file. Here’s the important part of the error message:

[[See Video to Reveal this Text or Code Snippet]]

This error suggests that Python cannot find the square function, meaning something is likely wrong with your import statement or how you are referencing that function within your code.

Analyzing the Solution

The Cause of the Error

The error is happening because when you imported the polygon module, the functions within it (like square) aren't directly available to call without following certain conventions. Since you are trying to use the square function directly, Python does not recognize that function unless you explicitly refer to it correctly.

The Fix: Using Dot Notation

To reference functions from an imported module, you need to use the following format:

[[See Video to Reveal this Text or Code Snippet]]

In your case, the polygon module contains the square function. Therefore, instead of calling square(t, 100), you should modify your code as follows:

[[See Video to Reveal this Text or Code Snippet]]

This tells Python exactly where to find the square function (inside the polygon module), which will resolve the NameError.

Adjusting Your Code

Here’s how you can adjust your existing code:

[[See Video to Reveal this Text or Code Snippet]]

Key Takeaways

Here’s a recap of steps to follow when facing similar issues:

Ensure Proper Importing: Always check if your functions from another file/module are imported correctly.

Use Dot Notation for Function Calls: Call the function using its module name to avoid any NameError.

Test Your Code: Make sure to test your code after making changes to confirm everything is working as expected.

Conclusion

Coding can present many challenges, but understanding how to properly structure your imports and reference your functions is key to troubleshooting effectively. By following the steps outlined above, you should be able to resolve the NameError and get back to creating your hangman game successfully! Happy coding!