Raymond Hettinger <raymond.hettin...@gmail.com> added the comment: This isn't a bug. The docs specify that *fieldnames* is a sequence, "The fieldnames parameter is a sequence of keys that identify the order in which values in the dictionary passed to the writerow() method are written to the csvfile."
We could make this a feature request. but as far as I can tell there isn't a real use case, nor has one ever arisen in the decade long history of the module. Adding the list(fieldnames) behavior could be done without a backwards compatibility issue, but it does incur an overhead that would be paid by all existing working code. ---------- nosy: +rhettinger type: -> enhancement versions: -Python 3.4, Python 3.5, Python 3.6, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue32547> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
