Difference between revisions of "Python"
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| − | + | = Python 3.6 type checking = | |
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| + | Make sure python is 3.6 or above | ||
<pre> python3 -m pip install -U mypy</pre> | <pre> python3 -m pip install -U mypy</pre> | ||
Revision as of 23:56, 20 November 2018
Python 3.6 type checking
Make sure python is 3.6 or above
python3 -m pip install -U mypy
Example code with typecheck
from typing import List
Vector = List[float]
def scale(scalar: float, vector: Vector) -> Vector:
return [scalar * num for num in vector]
# typechecks; a list of floats qualifies as a Vector.
new_vector = scale(2.0, [1.0, -4.2, 5.4])
print(new_vector)
To test typing, just run
mypy testtype.py
