> > > ---------- Forwarded message ---------- > From: Martin Bammer <mrb...@gmail.com> > To: python-ideas@python.org > Cc: > Bcc: > Date: Sat, 1 Sep 2018 09:47:04 +0200 > Subject: [Python-ideas] Add recordlcass to collections module > Hi, > > what about adding recordclass > (https://bitbucket.org/intellimath/recordclass) to the collections module > > It is like namedtuple, but elements are writable and it is written in C > and thus much faster. > > And for convenience it could be named as namedlist. > > Regards, > > Martin > > There are a problem which prevent you to reach your goals.
As list in Python is already that efficient, a wrapper of this list in C to supply so-called namedlist interface could not be that efficient. Member accessing in Python bytecode requires looking up corresponding attribute in a hashtable, if you want to access a list by attribute, actually there is an overhead. This is nothing to do with C implementation. See https://docs.python.org/3/library/dis.html#opcode-LOAD_ATTR
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