Why doesn't the namedtuple module use a metaclass to create nt class objects?

Question

I spent some time investigating the collections.namedtuple module a few weeks ago. The module uses a factory function which populates the dynamic data (the name of the new

Answer 1

As a sidenote: The other objection I see most often against using exec is that some locations (read companies) disable it for security reasons.

Besides an advanced Enum and NamedConstant, the aenum library* also has NamedTuple which is metaclass-based.

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* aenum is written by the author of enum and the enum34 backport.