How to Fix ModuleNotFoundError: no module named 'src' in Python

Описание: Learn how to troubleshoot and resolve the "ModuleNotFoundError: no module named 'src'" error when running Python scripts.
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When developing Python projects, encountering errors is common, and one such error is the ModuleNotFoundError: no module named 'src'. This error often arises due to issues with the directory structure or Python import statements. Let's dive into the significant causes and their solutions.

Understanding the Error

The ModuleNotFoundError: no module named 'src' typically occurs when Python cannot locate the specified module. This issue can stem from several factors, such as:

Incorrect module path

Improperly set up directory structure

Missing __init__.py files

Issues with the Python environment or paths

Resolving the Error

Check Directory Structure: Ensure that your project directory is correctly structured. For example:

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Here, main.py should import from src correctly if the directory structure and files are appropriately configured.

Verify __init__.py File: If src is meant to be a package, make sure it contains an __init__.py file. This file can be empty but is necessary for Python to treat the directory as a package.

Adjust Import Statements: Modify the import paths in your main.py. For example:

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Set Python Path: Sometimes, the issue arises because the Python path does not include the project directory. You can temporarily set the Python path before running your script:

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Or within your script:

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Run from Project Root: Ensure you are running main.py from the project root directory:

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Conclusion

The ModuleNotFoundError: no module named 'src' can be resolved by verifying and adjusting your directory structure, ensuring the presence of __init__.py files, correcting import statements, and correctly setting the Python path. By following these steps, you can ensure that Python correctly locates and imports your modules, allowing your project to run smoothly.