Re: [Python-Dev] performance delta with .py presence v.s. only pyc on python 2.7.x?

2014-10-07 Thread Brett Cannon
On Tue Oct 07 2014 at 2:24:52 PM Skip Montanaro wrote: > On Tue, Oct 7, 2014 at 12:46 PM, John Smith wrote: > > pyc-only install sees mediocre performance. (pyc's are built using > > compileall.py, then source .py's removed before packaging) > > (Warning: it's been probably a decade since I look

Re: [Python-Dev] performance delta with .py presence v.s. only pyc on python 2.7.x?

2014-10-07 Thread Skip Montanaro
On Tue, Oct 7, 2014 at 12:46 PM, John Smith wrote: > pyc-only install sees mediocre performance. (pyc's are built using > compileall.py, then source .py's removed before packaging) (Warning: it's been probably a decade since I looked at any of this stuff, so treat this response as mere conjecture

[Python-Dev] performance delta with .py presence v.s. only pyc on python 2.7.x?

2014-10-07 Thread John Smith
My team has a python app that appears to perform 10+% better when the python source is present v.s. when only the pyc's are distributed. This is contradictory to my understanding of how python leverages pyc's. Scenario 1. pyc-only install sees mediocre performance. (pyc's are built using compile

Re: [Python-Dev] Interactive Grid for Sorting, Filtering DataFrames in IPython Notebook

2014-10-07 Thread Brett Cannon
Python-dev is for discussing the development *of* Python, not *with* it. This kind of thing is more appropriate for python-list. On Tue Oct 07 2014 at 11:49:37 AM tshawver wrote: > As part of the work on our research environment at Quantopian > , I've been

[Python-Dev] Interactive Grid for Sorting, Filtering DataFrames in IPython Notebook

2014-10-07 Thread tshawver
As part of the work on our research environment at Quantopian , I've been building an extension which renders pandas DataFrames as interactive grids in the IPython notebook. The extension uses a Javascript library called SlickGrid to render the grids, and th

[Python-Dev] 3.4.2 is slipping by a day

2014-10-07 Thread Larry Hastings
We don't have Windows installers yet. If we can't get 'em in the next 24 hours or so, I'll release without them. But for now... we wait. Twiddling my thumbs, //arry/ ___ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailm

Re: [Python-Dev] bytes-like objects

2014-10-07 Thread Nick Coghlan
On 7 Oct 2014 00:31, "Christian Tismer" wrote: > > 2) > And about this glossary entry: > > "An object that supports the Buffer Protocol" > - can I take that for granted, as a real definition, meaning > > """an object is bytes-like iff it supports the buffer protocol"""? Yes, although we should l