New submission from Steve Dower <steve.do...@python.org>:
Importing http.server triggers mimetypes.init(), which can be fairly expensive on Windows (and potentially other platforms?) due to having to enumerate a lot of registry keys. Instead, SimpleHTTPRequestHandler.extensions_map can be a dict with just its default values in lib/http/server.py and the first call to guess_type() can initialize mimetypes if necessary. We should check whether people read from SimpleHTTPRequestHandler.extensions_map directly before calling guess_type(), and decide how quickly we can make the change. My gut feeling is we will be okay to make this in the next release but probably shouldn't backport it. ---------- components: Library (Lib), Windows keywords: easy messages: 330212 nosy: paul.moore, steve.dower, tim.golden, zach.ware priority: normal severity: normal stage: needs patch status: open title: Make SimpleHTTPRequestHandler load mimetypes lazily type: performance versions: Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue35292> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
