On 13 May 2014 10:19, <dw+python-...@hmmz.org> wrote: > On Mon, May 12, 2014 at 04:22:52PM -0700, Gregory Szorc wrote: > >> Why can't Python start as quickly as Perl or Ruby? > > On my heavily abused Core 2 Macbook with 9 .pth files, 2.7 drops from > 81ms startup to 20ms by specifying -S, which disables site.py. > > Oblitering the .pth files immediately knocks 10ms off regular startup. I > guess the question isn't why Python is slower than perl, but what > aspects of site.py could be cached, reimplemented, or stripped out > entirely. I'd personally love to see .pth support removed.
The startup code is currently underspecified and underdocumented, and quite fragile as a result. It represents 20+ years of organic growth without any systematic refactoring to simplify and streamline things. That's what PEP 432 aims to address, and is something I now expect to have time to get back to for Python 3.5. And yes, one thing those changes should enable is the creation of system Python runtimes on Linux that initialise faster than the current implementation. Cheers, Nick. -- Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
