mirrors
/
cpython
mirror of https://github.com/python/cpython.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
126,721 Commits 6 Branches 604 Tags 2.9 GiB
Commit Graph

237 Commits

Author SHA1 Message Date
Victor Stinner 9f5fe7910f
bpo-40286: Add randbytes() method to random.Random (GH-19527) 
Add random.randbytes() function and random.Random.randbytes()
method to generate random bytes.

Modify secrets.token_bytes() to use SystemRandom.randbytes()
rather than calling directly os.urandom().

Rename also genrand_int32() to genrand_uint32(), since it returns an
unsigned 32-bit integer, not a signed integer.

The _random module is now built with Py_BUILD_CORE_MODULE defined.
 2020-04-17 19:05:35 +02:00
Raymond Hettinger 041d8b48a2
bpo-38881: choices() raises ValueError when all weights are zero (GH-17362) 2019-11-23 02:22:13 -08:00
Raymond Hettinger d0cdeaab76
bpo-32554: Deprecate hashing arbitrary types in random.seed() (GH-15382) 2019-08-22 09:19:36 -07:00
Serhiy Storchaka 2085bd0877
bpo-37116: Use PEP 570 syntax for positional-only parameters. (GH-13700) 2019-06-01 11:00:15 +03:00
Christian Heimes d914596a67 bpo-36559: random module: optimize sha512 import (GH-12742) 
The random module now prefers the lean internal _sha512 module over hashlib
for seed(version=2) to optimize import time.

Signed-off-by: Christian Heimes <christian@python.org>
 2019-04-10 13:18:02 -07:00
Raymond Hettinger 5382203ae1
Convert range to repeat for choices() (#11889) 2019-02-16 13:30:51 -08:00
Raymond Hettinger cfd31f0af2 Be consistent about the use of from-imports in random module (GH-11837) 
Minor code clean-up.
 2019-02-13 02:04:17 -08:00
Kumar Akshay 2433a2ab70 bpo-35782: Fix error message in randrange (GH-11620) 
https://bugs.python.org/issue35782
 2019-01-21 11:19:59 -08:00
leodema 63d152232e bpo-30561: Sync-up expovariate() and gammavariate code (GH-1934) 2018-12-23 22:54:25 -08:00
Victor Stinner 8db5b54463
bpo-35513, unittest: TextTestRunner uses time.perf_counter() (GH-11180) 
TextTestRunner of unittest.runner now uses time.perf_counter() rather
than time.time() to measure the execution time of a test: time.time()
can go backwards, whereas time.perf_counter() is monotonic.

Similar change made in libregrtest, pprint and random.
 2018-12-17 11:30:34 +01:00
Raymond Hettinger 09473ac063
Remove unnecessary and over-restrictive type check (GH-10905) 2018-12-04 14:53:14 -08:00
Raymond Hettinger 7fc633f5a5 Add comments regarding speed/space/entropy trade-offs (GH-10885) 2018-12-04 00:13:38 -08:00
Raymond Hettinger 0a18e0510a Hoist the float conversion out of the inner loop. (GH-10430) 
Currently, the *n* and *total* variables get converted to floats each time they are multiplied by random().  This minor tweak does the conversion just once and gets a small speedup (approx 3%).
 2018-11-09 02:39:50 -08:00
Raymond Hettinger e69cd169af
Minor code refactoring. Compute len() one fewer times on one code path. (GH-8094) 2018-07-04 15:28:20 -07:00
Raymond Hettinger ddf7171911
bpo-24567: Random subnormal.diff (#7954) 
Handle subnormal weights for choices()
 2018-06-27 01:08:31 -07:00
Serhiy Storchaka ec1622d56c
bpo-33144: Fix choosing random.Random._randbelow implementation. (GH-6563) 
random() takes precedence over getrandbits() if defined later
in the class tree.
 2018-05-08 15:45:15 +03:00
Wolfgang Maier ba3a87aca3 bpo-33144: random.Random and subclasses: split _randbelow implementation (GH-6291) 2018-04-17 08:16:17 -07:00
Wolfgang Maier 091e95e900 bpo-33203: Ensure random.choice always raises IndexError on empty sequence (GH-6338) 2018-04-05 08:19:44 -07:00
Raymond Hettinger 132a7d7cdb bpo-31482: Missing bytes support for random.seed() version 1 (#3614) 
bpo-31482: Missing bytes support for random.seed() version 1 #3614
 2017-09-17 09:04:30 -07:00
Raymond Hettinger f5ea83f486 random_triangular: sqrt() is more accurate than **0.5 (#3317) 2017-09-04 16:51:06 -07:00
leodema 9f396b605e fix comment (#1798) 2017-06-04 07:41:41 +01:00
Gregory P. Smith 163468a766 bpo-16500: Don't use string constants for os.register_at_fork() behavior (#1834) 
Instead use keyword only arguments to os.register_at_fork for each of the scenarios.
Updates the documentation for clarity.
 2017-05-29 10:03:41 -07:00
Antoine Pitrou 346cbd351e bpo-16500: Allow registering at-fork handlers (#1715) 
* bpo-16500: Allow registering at-fork handlers

* Address Serhiy's comments

* Add doc for new C API

* Add doc for new Python-facing function

* Add NEWS entry + doc nit
 2017-05-27 17:50:54 +02:00
Raymond Hettinger bb2839b680 Issue #29055: Suppress upstream exception for random.choice() 2016-12-27 01:06:52 -08:00
Raymond Hettinger bf87126a63 Issue 28475: Improve error message for random.sample() with k < 0. (Contributed by Francisco Couzo). 2016-11-21 14:34:33 -08:00
Raymond Hettinger 24e4239434 Fix typos 2016-11-13 00:42:56 -05:00
Raymond Hettinger 8567e58ae3 Minor code beautification 2016-11-01 22:23:11 -07:00
Raymond Hettinger 30d00e54dd Issue #18844: Make the various ways for specifing weights produce the same results. 2016-10-29 16:55:36 -07:00
Raymond Hettinger 9016f2864a Issue #18844: Make the number of selections a keyword-only argument for random.choices(). 2016-09-26 21:45:57 -07:00
Raymond Hettinger 28aa4a0684 Rename weighted_choices() to just choices() 2016-09-07 00:08:44 -07:00
Raymond Hettinger e8f1e002c6 Issue #18844: Add random.weighted_choices() 2016-09-06 17:15:29 -07:00
Victor Stinner e66987e626 os.urandom() now blocks on Linux 
Issue #27776: The os.urandom() function does now block on Linux 3.17 and newer
until the system urandom entropy pool is initialized to increase the security.

This change is part of the PEP 524.
 2016-09-06 16:33:52 -07:00
Raymond Hettinger 6579502c7e Merge 2016-09-04 11:17:48 -07:00
Raymond Hettinger 16eb827b33 Improve docs for random.seed() 2016-09-04 11:17:28 -07:00
Raymond Hettinger 2f9cc7ab0c Minor beautification (turn nested-if into a conjunction). 2016-08-31 23:00:32 -07:00
Raymond Hettinger 112835cb3e Merge 2016-08-31 15:01:28 -07:00
Raymond Hettinger c7bab7cbf5 Issue #27706: Fix regression in random.seed(somestr, version=1) 2016-08-31 15:01:08 -07:00
Raymond Hettinger 650c1c9ddd Minor beautification 2016-06-25 05:36:42 +03:00
Martin Panter e26da7c03a Issue #27171: Fix typos in documentation, comments, and test function names 2016-06-02 10:07:09 +00:00
Raymond Hettinger d58a0b6876 merge 2014-05-25 17:28:38 -07:00
Raymond Hettinger 978c6abced Issue 13355: Make random.triangular degrade gracefully when low == high. 2014-05-25 17:25:27 -07:00
Raymond Hettinger 1f54814094 Improve readability 2014-05-19 20:21:43 +01:00
Raymond Hettinger 23042cda40 Issue #21470: Do a better job seeding the random number generator 
to fully cover its state space.
 2014-05-13 22:13:40 -07:00
Christian Heimes f1dc3ee16d Issue #19218: Rename collections.abc to _collections_abc in order to speed up interpreter start 2013-10-13 02:04:20 +02:00
Raymond Hettinger be74a3d721 Minor clean-up of function parameters in random(). 2013-10-05 21:52:06 -07:00
Raymond Hettinger 8fe47c3991 Minor clean-up of function parameters in random(). 2013-10-05 21:48:21 -07:00
Raymond Hettinger f77cdbeff7 Issue #19169: Micro refactoring with a micro benefit for brevity and speed. 2013-10-05 17:18:36 -07:00
Senthil Kumaran f5ce0122ce Removing the merge conflict markers. 
- my previous removal and hg resolve mark had still left them and hooks did not catch it too!
 2013-09-12 07:06:49 -07:00
Senthil Kumaran b4055f294e merge from 3.3 
Improve the docstring of random.shuffle. Inform users not to provide int arg.
Addresses issue #14927
 2013-09-11 22:55:54 -07:00
Senthil Kumaran f8ce51ab16 Improve the docstring of random.shuffle. Inform users not to provide int arg. 
Addresses issue #14927
 2013-09-11 22:54:31 -07:00
Serhiy Storchaka 46e1ce214b Issue #18783: Removed existing mentions of Python long type in docstrings, 
error messages and comments.
 2013-08-27 20:17:03 +03:00
Serhiy Storchaka 9594942716 Issue #18783: Removed existing mentions of Python long type in docstrings, 
error messages and comments.
 2013-08-27 19:40:23 +03:00
Andrew Svetlov 44e33f39bf Revert changes for #13355 by request from Raymond Hettinger 2013-04-13 18:04:19 +03:00
Andrew Svetlov b4fd468f12 Revert changes for #13355 by request from Raymond Hettinger 2013-04-13 18:00:04 +03:00
Andrew Svetlov 730001163f Issue #13355: Raise ValueError on random.triangular call with invalid params. 
Initial patch by Yuriy Senko.
 2013-04-12 23:27:37 +03:00
Andrew Svetlov a2dfc35a13 Issue #13355: Raise ValueError on random.triangular call with invalid params. 
Initial patch by Yuriy Senko.
 2013-04-12 23:21:01 +03:00
R David Murray d9ebf4dc1f #17489: Add explanatory comment that __getstate__ is not called. 
We don't put coverage directives in the stdlib, but anyone looking at a
coverage report for Random should see the comment and understand why the lines
aren't covered.
 2013-04-02 13:10:52 -04:00
Serhiy Storchaka 06e5e730dd Issue #17141: random.vonmisesvariate() no more hangs for large kappas. 2013-02-10 19:29:54 +02:00
Serhiy Storchaka ac99576a8e Issue #17141: random.vonmisesvariate() no more hangs for large kappas. 2013-02-10 19:29:20 +02:00
Serhiy Storchaka 6c22b1d760 Issue #17141: random.vonmisesvariate() no more hangs for large kappas. 2013-02-10 19:28:56 +02:00
Mark Dickinson 1b901baee5 Issue #17149: merge fix from 3.3. 2013-02-10 14:17:20 +00:00
Mark Dickinson 6427358501 Issue #17149: merge fix from 3.2. 2013-02-10 14:16:56 +00:00
Mark Dickinson be5f91957f Issue #17149: Fix random.vonmisesvariate to always return results in [0, 2*math.pi]. 2013-02-10 14:16:10 +00:00
Antoine Pitrou 5e3943317d Issue #15837: add some tests for random.shuffle(). 
Patch by Alessandro Moura.
 2012-11-04 02:10:33 +01:00
Sandro Tosi e1b22edd23 Issue #14926: merge with 3.2 2012-06-02 19:40:20 +02:00
Sandro Tosi 29d09aa4dd Issue #14926: fix docstring highlight 2012-06-02 19:40:02 +02:00
Brian Curtin 4ff29db243 Merge 3.2 2011-11-11 09:41:17 -06:00
Brian Curtin 675f6b87cd Fix #13384. Remove __future__ import in 3.x code. 2011-11-11 09:37:25 -06:00
Raymond Hettinger 12fb2f41f0 Code simplification suggested by Sven Marnach. 2011-06-25 11:31:46 +02:00
Raymond Hettinger 5279fb99cb Code simplification suggested by Sven Marnach. 2011-06-25 11:30:53 +02:00
Raymond Hettinger 102d874999 Sync-up minor code edits with the default branch. 2011-05-05 11:49:12 -07:00
Raymond Hettinger 7c5dc912ba Avoid codec spelling issues by just using the utf-8 default. 2011-05-05 11:38:06 -07:00
Raymond Hettinger f90ba8a9a2 Avoid codec spelling issues by just using the utf-8 default. 2011-05-05 11:35:50 -07:00
Ezio Melotti 0dea6484a0 #11848: Merge with 3.2. 2011-04-15 08:27:37 +03:00
Ezio Melotti 82b0d5d144 #11848: Merge with 3.1. 2011-04-15 08:27:00 +03:00
Ezio Melotti 20f53f1fe7 #11848: replace dead link in random.betavariate comment. 2011-04-15 08:25:16 +03:00
Raymond Hettinger 09cbadd005 Issue 10787: Document the probability density function for random.gammavariate. 2011-03-22 15:57:03 -07:00
Raymond Hettinger 27f870982f Issue 10787: Document the probability density function for random.gammavariate. 2011-03-22 15:56:41 -07:00
Raymond Hettinger a8e4d6eb6e Issue 10787: Document the probability density function for random.gammavariate. 2011-03-22 15:55:51 -07:00
Marc-André Lemburg 8f36af7a4c Normalize the encoding names for Latin-1 and UTF-8 to 
'latin-1' and 'utf-8'.

These are optimized in the Python Unicode implementation
to result in more direct processing, bypassing the codec
registry.

Also see issue11303.
 2011-02-25 15:42:01 +00:00
Raymond Hettinger 57d1a887e7 Fix imports from collections.abc 2011-02-23 00:46:28 +00:00
Raymond Hettinger 3fcf002994 Update whatsnew. Salt the random number seed. 2010-12-08 01:13:53 +00:00
Raymond Hettinger 63b17671f0 Improve variable name (don't shadow a builtin). 2010-09-08 19:27:59 +00:00
Raymond Hettinger 8ff1099684 One more conversion from pow() to **. 2010-09-08 18:58:33 +00:00
Raymond Hettinger 183cd1fae3 * Remove dependency on binascii.hexlify by using int.from_bytes(). 
* Use the new super() with no arguments.
* Replace pow() call with the ** operator.
* Increase urandom seeding from 16 bytes to 32 bytes.
* Clean-up docstring.
 2010-09-08 18:48:21 +00:00
Raymond Hettinger e4a3e99973 In the case where only a user supplied random() method is available, 
adopt a strategy that makes the fewest calls to random().
 2010-09-08 00:30:28 +00:00
Raymond Hettinger f015b3f5f6 Neaten-up comments and warning message. 2010-09-07 20:04:42 +00:00
Raymond Hettinger 05a505f106 Minor refactoring and cleanup. Extend looping randrange() technique to subclasses. 2010-09-07 19:19:33 +00:00
Raymond Hettinger c585eecfb0 Fix test that depends on a particular implementation of random.choice(). 2010-09-07 15:00:15 +00:00
Raymond Hettinger dc4872eefe Fix corner case for Random.choice() and add tests. 2010-09-07 10:06:56 +00:00
Raymond Hettinger c324697bac Small clean-ups. 2010-09-07 09:32:57 +00:00
Raymond Hettinger 0515661314 Issues #7889, #9025 and #9379: Improvements to the random module. 2010-09-07 04:44:52 +00:00
Raymond Hettinger 3051cc3a0d Minor code cleanup 2010-09-07 00:48:40 +00:00
Raymond Hettinger f763a728ad Document which part of the random module module are guaranteed. 2010-09-07 00:38:15 +00:00
Mark Dickinson 884924a2fd Issue #7435: Remove reference to long in docstring. Thanks flox. 2009-12-05 20:32:49 +00:00
Mark Dickinson 5c2db37c20 Issue #7435: Remove duplicate int/long tests, and other 
references to long in py3k.  Patch provided by flox.
 2009-12-05 20:28:34 +00:00
Raymond Hettinger be40db07c6 Issue 6261: Clarify behavior of random.uniform(). 2009-06-11 23:12:14 +00:00
Raymond Hettinger 886687dcda Use ABCs to validate documented restriction to Sets or Sequences. 2009-02-24 11:27:15 +00:00
Mark Dickinson 2f947369b3 Merged revisions 68378 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r68378 | mark.dickinson | 2009-01-07 17:48:33 +0000 (Wed, 07 Jan 2009) | 2 lines

  Issue #4869: clarify documentation for random.expovariate.
........
 2009-01-07 17:54:07 +00:00
Benjamin Peterson d18de0e28b Merged revisions 65259,65263,65296,65307,65321 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r65259 | benjamin.peterson | 2008-07-27 10:22:14 -0500 (Sun, 27 Jul 2008) | 1 line

  clarify Popen argument
........
  r65263 | andrew.kuchling | 2008-07-28 12:04:48 -0500 (Mon, 28 Jul 2008) | 1 line

  Clarify wording
........
  r65296 | raymond.hettinger | 2008-07-30 02:27:30 -0500 (Wed, 30 Jul 2008) | 1 line

  Neaten-up the itertools recipes.
........
  r65307 | benjamin.peterson | 2008-07-30 08:46:53 -0500 (Wed, 30 Jul 2008) | 1 line

  getrandombits is actually getrandbits
........
  r65321 | raymond.hettinger | 2008-07-30 20:19:50 -0500 (Wed, 30 Jul 2008) | 4 lines

  Alter recipe to show how to call izip_longest() with
  both a keyword argument and star arguments.
........
 2008-07-31 20:21:46 +00:00