Guido van Rossum <gu...@python.org> added the comment:
Whether the data was retrieved over a network has nothing to do with it. There are complementary ways of guessing what data you are working with -- guess based on the filename extension or sniff based on the contents of the file (or downloaded data). There are a zillion reasons why the filename could be a lie -- e.g. a user could pick the wrong extension, or rename a file, or a tool could save a file using the wrong extension or no extension at all. Then again sometimes the contents of the file might not be enough, e.g. ``` foo() // bar ``` is both valid Python and valid JavaScript. :-) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40841> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
