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How to Mock setuptools_scm get_version in Python

This code demonstrates how to mock setuptools_scm.get_version in Python using unittest.mock.patch to test version retrieval logic without installing or relying on the actual package.

setuptools-scm mock unittest
Python 
```python
from unittest.mock import patch

def get_version_from_scm():
    try:
        import setuptools_scm
        return setuptools_scm.get_version()
    except (ImportError, LookupError):
        return None

if __name__ == "__main__":
    with patch("setuptools_scm.get_version", return_value="1.2.3"):
        pr…
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