IIRC, one of the biggest complaint is about performance. namedtuples are not known to be fast, but I think performance has gotten better in more recent Python v

IIRC, one of the biggest complaint is about performance. namedtuples are not known to be fast, but I think performance has gotten better in more recent Python versions. This is just what I recall from reading PEPs, the email lists and release notes. My recollection may not be entirely accurate.