Blizzard
24 lines
713 B
Python
24 lines
713 B
Python
from enum import IntEnum
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class ParamEnum(IntEnum):
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"""Wraps IntEnum to provide validation of a requested item.
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Intended for enums used for function parameters.
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Use enum.get_value(item) for this behavior instead of builtin enum[item].
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"""
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@classmethod
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def get_value(cls, item):
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"""Validate incoming item and raise a ValueError with valid options if not present."""
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try:
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return cls[item].value
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except KeyError:
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valid_options = {e.name for e in cls}
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raise ValueError(
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"'{}' is not a valid option, must be one of '{}'".format(
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item, "', '".join(valid_options)
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)
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)
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