Add emission lines to NXxas

[mretegan]

No description provided.

[newville]

@mretegan Thanks. I'm not sure where the errors coming from. Could it be because although "K-L1" is a valid member of the Enum that could be found by dictionary or attribute access, it can't be accessed as an attribute

>>> from enum import StrEnum
>>> senums  = StrEnum('thing', {'Valid': 'Thing', 'Non-Attrr': 'value 2', 'Also Trouble': 'value 3'})
>>> senums.Valid
<thing.Valid: 'Thing'>
>>> print(senums.Valid)
Thing
>>> print(senums.Non-Attr)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
    raise AttributeError(name) from None
AttributeError: Non
>>> senums.Non-Attr

>>> senums.Also Trouble
  File "<stdin>", line 1
    senums.Also Trouble
                ^^^^^^^
SyntaxError: invalid syntax
>>> getattr(senums, 'Also Trouble')
<thing.Also Trouble: 'value 3'>

Maybe we should use a plain list of strings here, especially as StrEnum is only valid in Python 3.11 and later?

[mretegan]

I am closing this one as it is not relevant to the new definitions. The discussion will be continued in #16.