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Forward References and Python 3 Type Hints

Avatar for Daniel Bader Daniel Bader
July 20, 2016
Education
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260

Forward References and Python 3 Type Hints

Watch the full presentation here: https://www.youtube.com/watch?v=AJsrxBkV3kc

Avatar for Daniel Bader

Daniel Bader

July 20, 2016
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Transcript

  1. Forward references and Python 3 type hints

  2. How would you type-hint this? class MyClass: def get_instance(self): return

    self

  3. class MyClass: def get_instance(self) -> MyClass: return self ⚡⚡⚡ NameError:

    name 'MyClass' is not defined

  4. ???

  5. PEP 484

  6. def get_instance(self) -> "MyClass": ^^^^^^^^^ !