Dynamically create an enum with custom values in Python?
Question:
I would like to create an enum type at runtime by reading the values in a YAML file. So I have this:
# Fetch the values
v = {'foo':42, 'bar':24}
# Create the enum
e = type('Enum', (), v)
Is there a proper way to do it? I feel calling type
is not a very neat solution.
Answers:
You can create new enum type using Enum
functional API:
In [1]: import enum
In [2]: DynamicEnum = enum.Enum('DynamicEnum', {'foo':42, 'bar':24})
In [3]: type(DynamicEnum)
Out[3]: enum.EnumMeta
In [4]: DynamicEnum.foo
Out[4]: <DynamicEnum.foo: 42>
In [5]: DynamicEnum.bar
Out[5]: <DynamicEnum.bar: 24>
In [6]: list(DynamicEnum)
Out[6]: [<DynamicEnum.foo: 42>, <DynamicEnum.bar: 24>]
I would like to create an enum type at runtime by reading the values in a YAML file. So I have this:
# Fetch the values
v = {'foo':42, 'bar':24}
# Create the enum
e = type('Enum', (), v)
Is there a proper way to do it? I feel calling type
is not a very neat solution.
You can create new enum type using Enum
functional API:
In [1]: import enum
In [2]: DynamicEnum = enum.Enum('DynamicEnum', {'foo':42, 'bar':24})
In [3]: type(DynamicEnum)
Out[3]: enum.EnumMeta
In [4]: DynamicEnum.foo
Out[4]: <DynamicEnum.foo: 42>
In [5]: DynamicEnum.bar
Out[5]: <DynamicEnum.bar: 24>
In [6]: list(DynamicEnum)
Out[6]: [<DynamicEnum.foo: 42>, <DynamicEnum.bar: 24>]