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added credits to petbox examples

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This commit is contained in:
Luciano Ramalho 2021-05-20 23:13:16 -03:00
parent 14e1758bf7
commit eb8982f924
2 changed files with 11 additions and 1 deletions
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5
15-more-types/petbox/petbox.py
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@ -1,3 +1,8 @@
"""
Example adapted from `Atomic Kotlin` by Bruce Eckel & Svetlana Isakova,
chapter `Creating Generics`, section `Variance`.
"""
from typing import TypeVar, Generic, Any

7
15-more-types/petbox/petbox_demo.py
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@ -1,3 +1,8 @@
"""
Example adapted from `Atomic Kotlin` by Bruce Eckel & Svetlana Isakova,
chapter `Creating Generics`, section `Variance`.
"""
from typing import TYPE_CHECKING
from petbox import *
@ -11,7 +16,7 @@ cat_box.put(si)
animal = cat_box.get()
#if TYPE_CHECKING:
# if TYPE_CHECKING:
# reveal_type(animal) # Revealed: petbox.Cat*