Gaurav Tatke added the comment: Hi,
Pardon my ignorance, I am new to this but have below queries/thoughts - 1. Why would we say that adding new keys during lookup phase is an unpleasant side-effect? From what I understood by docs, one of the main reasons to use defaultdicts is to be able to insert a missing key and give a default value to it. 'defaultdict' doc itself suggest that doing this is cleaner and faster than using dict.setdefault(). 2. I believe defaultdict perfectly fits in this context of creating translation table for str.translate(). Even if we have very large string containing all characters from 4-5 languages, our defaultdict will still be comparatively small. It is easier to create a translation table using defaultdict when we have to strip most characters out of a string as in the example requested in the issue. Creating a translation table using str.maketrans() or by user defined function is tricky in this use case. 3. If argument for using defaultdict in this context is not convincing, shall I just give a patch, giving example of str.translate() using str.maketranse()? Regards, ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28612> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
