Le 22/08/2018 à 04:12, MRAB a écrit :
On 2018-08-22 02:38, Elazar wrote:
I don't think this change makes sense, but if it's done, there should
be another change, with actual implications:
There is no way to express the types of the parameters in a lambda -
`lambda x: int : x` is obviously a syntax error. Replacing the colon
with a different symbol, such as "=>" will make this possible:
def x => x
def x: int => x
def x: int -> int => x
It will also give one less meaning to the colon.
The examples I showed had parens, so your examples could be:
def (x): x
def (x: int): x
def (x: int) -> int: x
With or without allowing `def` to be an equivalent of `lambda`, I think
this is a great idea.
To me, someone who understands the following 2 lines:
lambda x, y: x * y
def a(x: float, y: int) -> float: ...
would probably understand the following:
lambda(x: float, y: int) -> float: x * y
(more type hints, I like it!)
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