Vajrasky Kok added the comment:
Well, what about None?
$ python3 -c 'import csv; reader = csv.reader("foo", delimiter=None)'
Traceback (most recent call last):
File "<string>", line 1, in <module>
TypeError: delimiter must be set
English grammatically speaking, we should get this kind of error:
ValueError: "delimiter" must be string, not None
But computer science-ly speaking, the exception message "delimiter must be set"
is correct because setting null or None value to a variable can be considered
as same as unsetting that variable, hence error message "must be set".
And I would argue the empty string can be considered as one of a kind with None
in this case.
But we'll see other people's opinions. I am also not sure about this case.
----------
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue18829>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
