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Solution #652
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Solution #652
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Original file line number | Diff line number | Diff line change |
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@@ -1,25 +1,124 @@ | ||
from abc import ABC | ||
from typing import Any | ||
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class IntegerRange: | ||
pass | ||
def __init__( | ||
self, | ||
min_amount: int, | ||
max_amount: int | ||
) -> None: | ||
self.min_amount = min_amount | ||
self.max_amount = max_amount | ||
|
||
def __get__( | ||
self, | ||
obj: Any, | ||
objtype: None | Any = None | ||
) -> int | str: | ||
value = getattr(obj, self.private_name, None) | ||
return value | ||
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||
def __set__( | ||
self, | ||
obj: Any, | ||
value: int | ||
) -> None: | ||
if not isinstance(value, int): | ||
raise TypeError(f"{value} must be an integer") | ||
if not (self.min_amount <= value <= self.max_amount): | ||
raise ValueError( | ||
f"{value} must be between " | ||
f"{self.min_amount} and {self.max_amount}" | ||
) | ||
setattr(obj, self.private_name, value) | ||
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def __set_name__( | ||
self, | ||
owner: Any, | ||
name: str | ||
) -> None: | ||
self.public_name = name | ||
self.private_name = "_" + name | ||
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class Visitor: | ||
pass | ||
def __init__( | ||
self, | ||
name: str, | ||
age: int, | ||
weight: int, | ||
height: int | ||
) -> None: | ||
self.name = name | ||
self.age = age | ||
self.weight = weight | ||
self.height = height | ||
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class SlideLimitationValidator(ABC): | ||
pass | ||
age = IntegerRange(4, 60) | ||
weight = IntegerRange(20, 120) | ||
height = IntegerRange(80, 120) | ||
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def __init__( | ||
self, | ||
age: int, | ||
height: int, | ||
weight: int | ||
) -> None: | ||
self.age = age | ||
self.height = height | ||
self.weight = weight | ||
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class ChildrenSlideLimitationValidator(SlideLimitationValidator): | ||
pass | ||
age = IntegerRange(4, 14) | ||
weight = IntegerRange(20, 50) | ||
height = IntegerRange(80, 120) | ||
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def __init__( | ||
self, | ||
age: int, | ||
height: int, | ||
weight: int | ||
) -> None: | ||
super().__init__(age, height, weight) | ||
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class AdultSlideLimitationValidator(SlideLimitationValidator): | ||
pass | ||
age = IntegerRange(14, 60) | ||
weight = IntegerRange(50, 120) | ||
height = IntegerRange(120, 220) | ||
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def __init__( | ||
self, | ||
age: int, | ||
height: int, | ||
weight: int | ||
) -> None: | ||
super().__init__(age, height, weight) | ||
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class Slide: | ||
pass | ||
def __init__( | ||
self, | ||
name: str, | ||
limitation_class: Any | ||
) -> None: | ||
self.name = name | ||
self.limitation_class = limitation_class | ||
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def can_access( | ||
self, | ||
visitor: Any | ||
) -> bool: | ||
try: | ||
self.limitation_class( | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. The |
||
age=visitor.age, | ||
height=visitor.height, | ||
weight=visitor.weight | ||
) | ||
Comment on lines
+117
to
+121
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. In the |
||
return True | ||
except ValueError: | ||
return False |
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Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
The
__get__
method should return the actual value of the attribute, notself
. Returningself
will cause unexpected behavior when accessing the attribute. You should return thevalue
variable instead.