This answer to a similar question points out that Python 3.11 offers some nice, clear alternatives to the answers listed here, including a `member` marker: <https://stackoverflow.com/a/74302109/3358488>
```
from enum import Enum, member, nonmember
def fn(x):
print(x)
class MyEnum(Enum):
x = nonmember(1)
meth = fn
mem = member(fn)
@classmethod
def this_is_a_method(cls):
print('No, still not a member')
def this_is_just_function():
print('No, not a member')
@member
def this_is_a_member(x):
print('Now a member!', x)
```
See original answer for explanations.
Since Python 3.11 there is much more concise and understandable way. [`member` and `nonmember` functions](https://docs.python.org/3/library/enum.html#enum.member) were added to `enum` among other improvements, so you can now do the following:
```python
from enum import Enum, member, nonmember
def fn(x):
print(x)
class MyEnum(Enum):
x = nonmember(1)
meth = fn
mem = member(fn)
@classmethod
def this_is_a_method(cls):
print('No, still not a member')
def this_is_just_function():
print('No, not a member')
@member
def this_is_a_member(x):
print('Now a member!', x)
```
And now
```
>>> list(MyEnum)
[<MyEnum.mem: <function fn at ...>>, <MyEnum.this_is_a_member: <function MyEnum.this_is_a_member at ...>>]
>>> MyEnum.meth(1)
1
>>> MyEnum.mem(1)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'MyEnum' object is not callable
>>> MyEnum.mem.value(1)
1
>>> MyEnum.this_is_a_method()
No, still not a member
>>> MyEnum.this_is_just_function()
No, not a member
>>> MyEnum.this_is_a_member()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'MyEnum' object is not callable
>>> MyEnum.this_is_a_member.value(1)
Now a member! 1
>>> MyEnum.x
1
```
Of course, you can add `__call__` to avoid explicit `.value` calls:
```
class MyEnum(Enum):
...
def __call__(self, *args, **kwargs):
return self.value(*args, **kwargs)
```
and now
```
>>> MyEnum.mem(1)
1
```
Note that this cannot be typed correctly unless all your enum member functions share the same signature.
