Importerror: cannot import name ‘_gi’ from partially initialized module ‘gi’ (most likely due to a circular import) (/usr/lib/python3/dist-packages/gi/__init__.py)

When encountering the error message “ImportError: cannot import name '_gi' from partially initialized module 'gi' (most likely due to a circular import) (/usr/lib/python3/dist-packages/gi/__init__.py)“, it usually signifies a circular import issue with the Python gi module. A circular import occurs when two or more modules depend on each other, causing an endless loop and preventing the successful import of the required modules.

To understand this error further, let’s consider an example. Suppose we have two Python files: module_a.py and module_b.py. In module_a.py, we have the following code:

    # module_a.py
    import module_b
    
    def function_in_module_a():
        print("Function in module A")
  

In module_b.py, we have the following code:

    # module_b.py
    import module_a
    
    def function_in_module_b():
        print("Function in module B")
  

As you can see, both module_a.py and module_b.py are importing each other, creating a circular dependency. When running any code that relies on these modules, it will result in the mentioned ImportError.

To resolve this issue, there are a few possible solutions:

1. Refactor the code to remove the circular import: In some cases, it’s possible to restructure the code and remove the circular dependency between modules. This could involve moving shared functionality to a separate module or rethinking the overall design.
2. Use import statements within functions: Instead of importing the entire module at the top, place the import statements inside the specific functions where they are needed. This approach can help avoid circular imports.
3. Delay the import: Another alternative is to delay the import until it’s actually required. This can be done by moving the import statement inside a function or conditional block. By importing the module locally within a function, you can prevent a circular import during the module initialization phase.

Here’s an example showcasing the third solution, by delaying the import:

    # module_a.py
    def function_in_module_a():
        import module_b  # Importing here rather than at the top
        
        print("Function in module A")
  

    # module_b.py
    def function_in_module_b():
        import module_a  # Importing here rather than at the top
        
        print("Function in module B")
  

In the updated example, the import statements are moved inside the corresponding functions. This way, the circular import issue is resolved, and the code can be executed successfully.