Pytype 是 Google 开源的 Python 静态类型分析器。
- Lint plain Python code, flagging common mistakes such as mispelled attribute names, incorrect function calls, and much more, even across file boundaries.
- Enforce user-provided type annotations. While annotations are optional for pytype, it will check and apply them where present.
- Generate type annotations in standalone files ("pyi files"), which can be merged back into the Python source with a provided merge-pyi tool.