python define type hints code example

Example 1: python type hint list

# For collections, the name of the type is capitalized, and the
# name of the type inside the collection is in brackets
x: List[int] = [1]
x: Set[int] = {6, 7}
  
# For simple built-in types, just use the name of the type
x: int = 1
x: float = 1.0
x: bool = True
x: str = "test"
x: bytes = b"test"

Example 2: python typing module list

"""
typing.Tuple and typing.List are Generic types; this means you can specify what type their contents must be:
"""

def f(points: Tuple[float, float]):
    return map(do_stuff, points)

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Misc Example

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