How to cast tuple into namedtuple?

Question

I\'d like to use namedtuples internally, but I want to preserve compatibility with users that feed me ordinary tuples.

from collections import namedtuple

tuple_p         


        

Answer 1

You can use the *args call syntax:

named_pi = Record(*tuple_pi)

This passes in each element of the tuple_pi sequence as a separate argument.

You can also use the namedtuple._make() class method to turn any sequence into an instance:

named_pi = Record._make(tuple_pi)

Demo:

>>> from collections import namedtuple
>>> Record = namedtuple("Record", ["ID", "Value", "Name"])
>>> tuple_pi = (1, 3.14, "pi")
>>> Record(*tuple_pi)
Record(ID=1, Value=3.14, Name='pi')
>>> Record._make(tuple_pi)
Record(ID=1, Value=3.14, Name='pi')