Better, faster, smarter
[Pages:37]Better, faster, smarter
Python: yesterday, today... and tomorrow
?2006 Alex Martelli aleax@
1
Outline of this talk
a short reflection on Python evolution 2.2 -> 2.3 -> 2.4 -> ...
... -> highlights of Python 2.5 the "with" statement (RAII) other language changes additions to the standard library optimizations
Q & A Qs are also welcome during the talk!-)
2
2
1 lang, many versions
Jython (pending 2.2/2.3 release) IronPython (1.0, 8/06, Microsoft ~ CPython 2.4) pypy (0.9, 6/06 ~ CPython 2.4, but "beta") CPython (Classic Python) timeline
2.2: 12/01 (...2.2.3: 5/03) major new stuff 2.3: 7/03 (...2.3.5: 2/05) ~30% faster 2.4: 11/04 (...2.4.4: 9/06) ~5% faster yet 2.5: 9/06 (...?) ~10% (?) faster yet
3
3
2.2 Dec 2001
2.2 2.2.1
Apr 2002
2.2.2 Oct 2002
2.2.3 Mar 2003
Apr 2002
Oct 2002
Apr 2003 Oct 2003
2.3 2.3 Jul 2003
Apr 2004
2.3.1 Sep 2003
Oct 2004
Apr 2005
Oct 2005
Apr 2006
2.3.2 Oct 2003
2.3.3 Dec 2003
2.3.4 May 2004
2.3.5 Feb 2005
Apr 2002
Oct 2002
Apr 2003
Oct 2003
Apr 2004
2.5 Oct 2004 N2.o4vAp2r0024005 Oct 2005 Apr 2006
2.4 2.4.1 Mar 2005
2.4.2 Sep 2005
2.4.3 Mar 2006
Apr 2002 Oct 2002 Apr 2003 Oct 2003 Apr 20404 Oct 2004 Apr 2005 Oct 2005 Apr 2006
4
The 2.2 "revolution"
2.2 was a "backwards-compatible" revolution new-style object model, descriptors, custom metaclasses... iterators and generators nested scopes int/long merge, new division, bool (2.2.3) standard library: XML/RPC (clients and servers), IPv6 support, email, UCS-4, ...
nothing THAT big since, plus, new rule: 2.N.* has NO extra features wrt 2.N
5
5
2.2 highlights
class Newy(object): ... __metaclass__ = ...
def funmaker(...): def madefun(...): ... return madefun
def gen1(item): yield item
for item in iter(f, sentinel): ...
6
6
2.3: stable evolution
no changes to the language "proper" many, MANY optimizations/tweaks/fixes
import-from-ZIP, ever-more-amazing sort, Karatsuba multiplication, pymalloc, interned strs gc'able ... builtins: sum, enumerate, extended slices, enhancements to str, dict, list, file, ... stdlib, many new modules: bz2, csv, datetime, heapq, itertools, logging, optparse, platform, sets, tarfile, textwrap, timeit & many enhancements: socket timeouts, ...
7
7
2.3 highlights
sys.path.append(`some.zip')
sum([x**2 for x in xs if x%2])
for i, x in enumerate(xs): ...
print `ciao'[::-1]
for line in open(fn, `U'): ... ...and MANY new stdlib modules...!
8
8
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- google earth brown university
- python xml pr ocessing with relearn
- ann arbor mi usa
- pharmasug paper ad 211 validating hyperlinks in sdtm
- reading xml introducing xpath
- introducción xml expresiones regulares el paquete
- curso python en 8 clases clase 7 xml
- better faster smarter
- python xml unittest documentation read the docs
- python xml parsing complete examples tutorial kart
Related searches
- faster than me or i
- pay off mortgage faster secrets
- pay off mortgage faster calculator
- pay down loan faster calculator
- how to pay off mortgage faster tips
- pay off loan faster calculator
- making stuff faster video
- pay off car faster calculator
- how to get faster at typing
- faster synonym
- are u smarter than 6th grader
- are you smarter than a 6 grader