How to Fix 'Undefined Reference' Errors When Importing Packages in PyCharm?

Importing Packages in PyCharm: Troubleshooting Undefined Reference Errors

When using installed packages in PyCharm, it's essential to ensure that the environment recognizes the package path. This article addresses the issue of encountering undefined reference errors while importing packages from installed environments.

Adding the Path to the Interpreter

To resolve this issue, follow these steps:

1. Navigate to File > Settings > Project Settings > Project Interpreter.
2. Click on the configure interpreter button.
3. Under the Paths tab, click on the button in the Paths area.
4. Enter the path to the directory where the installed package is located.

Determining the Path

If you're unsure of the exact path to the package, you can use the Python interpreter to find it:

1. Open the Python interpreter.
2. Import the desired module (e.g., import gnuradio).
3. Use the __file__ attribute to retrieve the module's file path (e.g., gnuradio.__file__).

This will provide you with the path to the package's root directory. In the example provided, the path would be /usr/local/lib/python2.7/site-packages/gnuradio.

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