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Lifeguard: A static analyzer for Python lazy imports compatibility

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Static analyzer for Python lazy imports, relevant to data engineering and developer experience.

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Lifeguard is a static analyzer to detect Lazy Imports incompatibilities and ease the adoption overhead for Lazy Imports in Python - facebook/Lifeguard
Summary

Lifeguard for Lazy Imports A fast static analysis tool to aid adoption of Lazy Imports in Python. What are Lazy Imports? In Python, every import statement executes immediately when a module is loaded. This overhead is incurred regardless of whether that import is actually used. PEP 810 introduces explicit Lazy Imports to Python, which defer the actual loading of a module until the imported name is first accessed. Lazy Imports can significantly reduce memory usage, startup times, and import overhead, especially in large codebases with deep dependency trees.