On 18Jul2017 02:57, Steve D'Aprano <steve+pyt...@pearwood.info> wrote:
collections.namedtuple generates a new class using exec, and records the source code for the class as a _source attribute.Although it has a leading underscore, it is actually a public attribute. The leading underscore distinguishes it from a named field potentially called "source", e.g. namedtuple("klass", ['source', 'destination']). There is some discussion on Python-Dev about: - changing the way the namedtuple class is generated which may change the _source attribute - or even dropping it altogether in order to speed up namedtuple and reduce Python's startup time. Is there anyone here who uses the namedtuple _source attribute?
Speaking for myself: no I do not. Cheers, Cameron Simpson <c...@zip.com.au> -- https://mail.python.org/mailman/listinfo/python-list
