Commit Graph

43 Commits

Author SHA1 Message Date
Neal Norwitz
e51fc53b6a George Yoshida's fix. 2006-02-22 05:51:48 +00:00
Tim Peters
d34350e47e At Brian Wichmann's request, added words warning against
using the old Wichmann-Hill generator,  Also pointed to
a newer version of his generator, and weakened the claim
about what jumpahead() does now.

Note sure I got the LaTeX entirely correct for \seeurl.
If it's broken, please fix it ;-)

Bugfix candidate!  (These changes make just as much
sense for 2.4.)
2006-02-21 19:19:00 +00:00
Tim Peters
4d0bd0b32c Trimmed trailing whitespace. 2006-02-21 18:48:34 +00:00
Georg Brandl
a635fbbcb0 Remove dots in \version{changed,added} argument and
correct argument order.
2006-01-15 07:55:35 +00:00
Fred Drake
d5ecb513ad fix markup nits 2005-07-20 03:49:42 +00:00
Raymond Hettinger
78a5271d3e SF bug #1033038: Misleading error message in random.choice
Added a clarifying line to the docs.
2004-09-28 03:04:23 +00:00
Raymond Hettinger
23f1241dc6 SF #1027105: HardwareRandom should be renamed OSRandom
Renamed the new generator at Trevor's recommendation.
The name HardwareRandom suggested a bit more than it
delivered (no radioactive decay detectors or such).
2004-09-13 22:23:21 +00:00
Raymond Hettinger
356a4599ac Teach the random module about os.urandom().
* Use it for seeding when it is available.
* Provide an alternate generator based on it.
2004-08-30 06:14:31 +00:00
Raymond Hettinger
2f726e9093 SF bug #812202: randint is always even
* Added C coded getrandbits(k) method that runs in linear time.
* Call the new method from randrange() for ranges >= 2**53.
* Adds a warning for generators not defining getrandbits() whenever they
  have a call to randrange() with too large of a population.
2003-10-05 09:09:15 +00:00
Raymond Hettinger
f8a52d38ad Removed deprecated functions 2003-08-05 12:23:19 +00:00
Raymond Hettinger
40f6217092 SF patch 658251: Install a C implementation of the Mersenne Twister as the
core generator for random.py.
2002-12-29 23:03:38 +00:00
Raymond Hettinger
311f419628 Improve comments. Clarify docs.
Replace "type(0)" with "int".
Replace "while 1" with "while True"
2002-11-18 09:01:24 +00:00
Raymond Hettinger
f24eb35d18 SF patch 629637: Add sample(population, k) method to the random module.
Used for random sampling without replacement.
2002-11-12 17:41:57 +00:00
Fred Drake
92bf9dacc9 Markup adjustments; fix the names of modules referenced in an expression. 2002-05-23 21:07:19 +00:00
Raymond Hettinger
c32f0336e0 Deprecated Random.cunifvariate clearing bug 506647. Also, added docstrings. 2002-05-23 19:44:49 +00:00
Raymond Hettinger
576474c5ae Closes SF bug 527139. Brings docs inline with random.py 1.29
which fixes the unnecessarily restricted method domain.
2002-05-13 23:49:13 +00:00
Raymond Hettinger
5359ad63ce Correct gammavariate's method name and domain.
Partial solution to SF bug 527139.
2002-05-13 22:40:38 +00:00
Fred Drake
d4c0e5fd5b BDFL agreed with Tim: rehabilitate randint(). 2002-04-12 20:01:47 +00:00
Fred Drake
4cacec5393 Fix a number of minor markup errors. 2001-04-21 05:56:06 +00:00
Fred Drake
844bd5b4a9 Minor markup adjustments. 2001-02-02 02:42:31 +00:00
Fred Drake
d0946da701 Fix some markup breakage that prevented formatting; re-wrapped a couple of
wide paragraphs.
2001-02-01 15:53:24 +00:00
Tim Peters
0de88fc4b1 Change random.seed() so that it can get at the full range of possible
internal states.  Put the old .seed() (which could only get at about
the square root of the # of possibilities) under the new name .whseed(),
for bit-level compatibility with older versions.  This occurred to me
while reviewing effbot's book (he found himself stumbling over .seed()
more than once there ...).
2001-02-01 04:59:18 +00:00
Tim Peters
e360d9507a The combo of getstate/setstate/jumpahead is very powerful, but needs
examples to flesh it out for the uninitiated.  Here they are.
2001-01-26 10:00:39 +00:00
Tim Peters
d52269bfd0 Fix bugs introduced by rewrite (in particular, time-based initialization
got broken).  Also added new method .jumpahead(N).  This finally gives us
a semi-decent answer to how Python's RNGs can be used safely and efficiently
in multithreaded programs (although it requires the user to use the new
machinery!).
2001-01-25 06:23:18 +00:00
Tim Peters
d7b5e88e8e Reworked random.py so that it no longer depends on, and offers all the
functionality of, whrandom.py.  Also closes all the "XXX" todos in
random.py.  New frequently-requested functions/methods getstate() and
setstate().  All exported functions are now bound methods of a hidden
instance.  Killed all unintended exports.  Updated the docs.
FRED:  The more I fiddle the docs, the less I understand the exact
intended use of the \var, \code, \method tags.  Please review critically.
GUIDO:  See email.  I updated NEWS as if whrandom were deprecated; I
think it should be.
2001-01-25 03:36:26 +00:00