On 22Oct2023 17:50, Antoon Pardon <[email protected]> wrote:
I have the following small module:
=-=-=-=-=-=-=-=-=-=-=-= 8< =-=-=-=-=-=-=-=-=-=-=-=-=
class Pnt (NamedTuple):
x: float
y: float
def __add__(self, other: PNT) -> Pnt:
return Pnt(self[0] + other[0], self[1] + other[1])
When this function is defined, the class "Pnt" has not yet been defined.
That happens afterwards.
You want a forward reference, eg:
def __add__(self, other: PNT) -> "Pnt":
A type checker will resolve this after the fact, when it encounters the
string in the type annotation.
This message:
NameError: name 'Pnt' is not defined. Did you mean: 'PNT'?
is unfortunate, because you have a very similar "PNT" name in scope. But
it isn't what you want.
Cheers,
Cameron Simpson <[email protected]>
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