Mailman 3 October 2015 - Python-checkins

cpython (merge 3.4 -> 3.5): Issue #23391: Merge OSError doc from 3.4 into 3.5
by martin.panter Oct. 27, 2015

Oct. 27, 2015

https://hg.python.org/cpython/rev/7b1a9a12eb77 changeset: 98862:7b1a9a12eb77 branch: 3.5 parent: 98857:77af40ae1f3f parent: 98861:cb554248ce54 user: Martin Panter <vadmium+py(a)gmail.com> date: Mon Oct 26 23:35:07 2015 +0000 summary: Issue #23391: Merge OSError doc from 3.4 into 3.5 files: Doc/library/exceptions.rst | 69 +++++++++++++++++------- Lib/test/test_exceptions.py | 17 ++++- 2 files changed, 60 insertions(+), 26 deletions(-) diff --git a/Doc/library/exceptions.rst b/Doc/library/exceptions.rst --- a/Doc/library/exceptions.rst +++ b/Doc/library/exceptions.rst @@ -232,44 +232,71 @@ classes to override the method. -.. exception:: OSError +.. exception:: OSError([arg]) + OSError(errno, strerror[, filename[, winerror[, filename2]]]) .. index:: module: errno This exception is raised when a system function returns a system-related error, including I/O failures such as "file not found" or "disk full" - (not for illegal argument types or other incidental errors). Often a - subclass of :exc:`OSError` will actually be raised as described in - `OS exceptions`_ below. The :attr:`errno` attribute is a numeric error - code from the C variable :c:data:`errno`. + (not for illegal argument types or other incidental errors). - Under Windows, the :attr:`winerror` attribute gives you the native - Windows error code. The :attr:`errno` attribute is then an approximate - translation, in POSIX terms, of that native error code. + The second form of the constructor sets the corresponding attributes, + described below. The attributes default to :const:`None` if not + specified. For backwards compatibility, if three arguments are passed, + the :attr:`~BaseException.args` attribute contains only a 2-tuple + of the first two constructor arguments. - Under all platforms, the :attr:`strerror` attribute is the corresponding - error message as provided by the operating system (as formatted by the C - functions :c:func:`perror` under POSIX, and :c:func:`FormatMessage` - Windows). + The constructor often actually returns a subclass of :exc:`OSError`, as + described in `OS exceptions`_ below. The particular subclass depends on + the final :attr:`.errno` value. This behaviour only occurs when + constructing :exc:`OSError` directly or via an alias, and is not + inherited when subclassing. - For exceptions that involve a file system path (such as :func:`open` or - :func:`os.unlink`), the exception instance will contain an additional - attribute, :attr:`filename`, which is the file name passed to the function. - For functions that involve two file system paths (such as - :func:`os.rename`), the exception instance will contain a second - :attr:`filename2` attribute corresponding to the second file name passed - to the function. + .. attribute:: errno + + A numeric error code from the C variable :c:data:`errno`. + + .. attribute:: winerror + + Under Windows, this gives you the native + Windows error code. The :attr:`.errno` attribute is then an approximate + translation, in POSIX terms, of that native error code. + + Under Windows, if the *winerror* constructor argument is an integer, + the :attr:`.errno` attribute is determined from the Windows error code, + and the *errno* argument is ignored. On other platforms, the + *winerror* argument is ignored, and the :attr:`winerror` attribute + does not exist. + + .. attribute:: strerror + + The corresponding error message, as provided by + the operating system. It is formatted by the C + functions :c:func:`perror` under POSIX, and :c:func:`FormatMessage` + under Windows. + + .. attribute:: filename + filename2 + + For exceptions that involve a file system path (such as :func:`open` or + :func:`os.unlink`), :attr:`filename` is the file name passed to the function. + For functions that involve two file system paths (such as + :func:`os.rename`), :attr:`filename2` corresponds to the second + file name passed to the function. .. versionchanged:: 3.3 :exc:`EnvironmentError`, :exc:`IOError`, :exc:`WindowsError`, :exc:`VMSError`, :exc:`socket.error`, :exc:`select.error` and - :exc:`mmap.error` have been merged into :exc:`OSError`. + :exc:`mmap.error` have been merged into :exc:`OSError`, and the + constructor may return a subclass. .. versionchanged:: 3.4 The :attr:`filename` attribute is now the original file name passed to the function, instead of the name encoded to or decoded from the - filesystem encoding. Also, the :attr:`filename2` attribute was added. + filesystem encoding. Also, the *filename2* constructor argument and + attribute was added. .. exception:: OverflowError diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py --- a/Lib/test/test_exceptions.py +++ b/Lib/test/test_exceptions.py @@ -233,6 +233,7 @@ self.assertEqual(w.winerror, 3) self.assertEqual(w.strerror, 'foo') self.assertEqual(w.filename, 'bar') + self.assertEqual(w.filename2, None) self.assertEqual(str(w), "[WinError 3] foo: 'bar'") # Unknown win error becomes EINVAL (22) w = OSError(0, 'foo', None, 1001) @@ -240,6 +241,7 @@ self.assertEqual(w.winerror, 1001) self.assertEqual(w.strerror, 'foo') self.assertEqual(w.filename, None) + self.assertEqual(w.filename2, None) self.assertEqual(str(w), "[WinError 1001] foo") # Non-numeric "errno" w = OSError('bar', 'foo') @@ -247,6 +249,7 @@ self.assertEqual(w.winerror, None) self.assertEqual(w.strerror, 'foo') self.assertEqual(w.filename, None) + self.assertEqual(w.filename2, None) @unittest.skipUnless(sys.platform == 'win32', 'test specific to Windows') @@ -271,13 +274,15 @@ (SystemExit, ('foo',), {'args' : ('foo',), 'code' : 'foo'}), (OSError, ('foo',), - {'args' : ('foo',), 'filename' : None, + {'args' : ('foo',), 'filename' : None, 'filename2' : None, 'errno' : None, 'strerror' : None}), (OSError, ('foo', 'bar'), - {'args' : ('foo', 'bar'), 'filename' : None, + {'args' : ('foo', 'bar'), + 'filename' : None, 'filename2' : None, 'errno' : 'foo', 'strerror' : 'bar'}), (OSError, ('foo', 'bar', 'baz'), - {'args' : ('foo', 'bar'), 'filename' : 'baz', + {'args' : ('foo', 'bar'), + 'filename' : 'baz', 'filename2' : None, 'errno' : 'foo', 'strerror' : 'bar'}), (OSError, ('foo', 'bar', 'baz', None, 'quux'), {'args' : ('foo', 'bar'), 'filename' : 'baz', 'filename2': 'quux'}), @@ -287,7 +292,8 @@ 'filename' : 'filenameStr'}), (OSError, (1, 'strErrorStr', 'filenameStr'), {'args' : (1, 'strErrorStr'), 'errno' : 1, - 'strerror' : 'strErrorStr', 'filename' : 'filenameStr'}), + 'strerror' : 'strErrorStr', + 'filename' : 'filenameStr', 'filename2' : None}), (SyntaxError, (), {'msg' : None, 'text' : None, 'filename' : None, 'lineno' : None, 'offset' : None, 'print_file_and_line' : None}), @@ -343,7 +349,8 @@ (WindowsError, (1, 'strErrorStr', 'filenameStr'), {'args' : (1, 'strErrorStr'), 'strerror' : 'strErrorStr', 'winerror' : None, - 'errno' : 1, 'filename' : 'filenameStr'}) + 'errno' : 1, + 'filename' : 'filenameStr', 'filename2' : None}) ) except NameError: pass -- Repository URL: https://hg.python.org/cpython

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Benchmark Results for Python 2.7 2015-10-26
by lp_benchmark_robot＠intel.com Oct. 26, 2015

Oct. 26, 2015

Results for project Python 2.7, build date 2015-10-26 14:19:14 +0000 commit: acc453391c5bb12d4c576df121e412109a27e6b8 revision date: 2015-10-24 14:39:36 +0000 environment: Haswell-EP cpu: Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz 2x18 cores, stepping 2, LLC 45 MB mem: 128 GB os: CentOS 7.1 kernel: Linux 3.10.0-229.4.2.el7.x86_64 Baseline results were generated using release v2.7.10, with hash 15c95b7d81dcf821daade360741e00714667653f from 2015-05-23 16:02:14+00:00 ---------------------------------------------------------------------------------- benchmark relative change since change since current rev run std_dev* last run baseline with PGO ---------------------------------------------------------------------------------- :-) django_v2 0.17% 0.49% 3.03% 8.84% :-) pybench 0.16% -0.03% 6.66% 7.09% :-| regex_v8 0.52% 0.45% -1.67% 6.35% :-) nbody 0.17% 0.17% 8.78% 3.06% :-) json_dump_v2 0.28% 0.36% 3.49% 14.54% :-| normal_startup 1.87% 0.76% -0.95% 2.01% :-| ssbench 0.95% 0.55% 1.46% 2.32% ---------------------------------------------------------------------------------- Note: Benchmark results for ssbench are measured in requests/second while all other are measured in seconds. * Relative Standard Deviation (Standard Deviation/Average) Our lab does a nightly source pull and build of the Python project and measures performance changes against the previous stable version and the previous nightly measurement. This is provided as a service to the community so that quality issues with current hardware can be identified quickly. Intel technologies' features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration.

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Benchmark Results for Python Default 2015-10-26
by lp_benchmark_robot＠intel.com Oct. 26, 2015

Oct. 26, 2015

Results for project Python default, build date 2015-10-26 13:31:42 +0000 commit: 21f6c4378846a04e923f51ec630b89a08f7d9ca9 revision date: 2015-10-26 08:37:55 +0000 environment: Haswell-EP cpu: Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz 2x18 cores, stepping 2, LLC 45 MB mem: 128 GB os: CentOS 7.1 kernel: Linux 3.10.0-229.4.2.el7.x86_64 Baseline results were generated using release v3.4.3, with hash b4cbecbc0781e89a309d03b60a1f75f8499250e6 from 2015-02-25 12:15:33+00:00 ---------------------------------------------------------------------------------- benchmark relative change since change since current rev run std_dev* last run baseline with PGO ---------------------------------------------------------------------------------- :-) django_v2 0.27% 2.55% 9.24% 15.74% :-( pybench 0.13% 0.21% -2.33% 8.65% :-( regex_v8 2.76% -0.90% -5.81% 7.19% :-( nbody 0.06% 0.10% -3.29% 12.89% :-| json_dump_v2 0.39% -0.21% -1.35% 8.31% :-| normal_startup 0.75% -0.01% 0.25% 5.19% ---------------------------------------------------------------------------------- Note: Benchmark results are measured in seconds. * Relative Standard Deviation (Standard Deviation/Average) Our lab does a nightly source pull and build of the Python project and measures performance changes against the previous stable version and the previous nightly measurement. This is provided as a service to the community so that quality issues with current hardware can be identified quickly. Intel technologies' features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration.

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Daily reference leaks (7a5f8418b4ab): sum=17889
by solipsis＠pitrou.net Oct. 26, 2015

Oct. 26, 2015

results for 7a5f8418b4ab on branch "default" -------------------------------------------- test_capi leaked [1599, 1599, 1599] references, sum=4797 test_capi leaked [387, 389, 389] memory blocks, sum=1165 test_collections leaked [6, 0, 0] references, sum=6 test_collections leaked [3, 0, 0] memory blocks, sum=3 test_functools leaked [0, 2, 2] memory blocks, sum=4 test_threading leaked [3196, 3196, 3196] references, sum=9588 test_threading leaked [774, 776, 776] memory blocks, sum=2326 Command line was: ['./python', '-m', 'test.regrtest', '-uall', '-R', '3:3:/home/psf-users/antoine/refleaks/reflogEFA2wO', '--timeout', '7200']

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cpython: Issue 25311: Add support for f-strings to tokenize.py. Also added some comments
by eric.smith Oct. 26, 2015

Oct. 26, 2015

https://hg.python.org/cpython/rev/21f6c4378846 changeset: 98860:21f6c4378846 user: Eric V. Smith <eric(a)trueblade.com> date: Mon Oct 26 04:37:55 2015 -0400 summary: Issue 25311: Add support for f-strings to tokenize.py. Also added some comments to explain what's happening, since it's not so obvious. files: Lib/test/test_tokenize.py | 17 +++ Lib/tokenize.py | 116 ++++++++++++++----------- 2 files changed, 83 insertions(+), 50 deletions(-) diff --git a/Lib/test/test_tokenize.py b/Lib/test/test_tokenize.py --- a/Lib/test/test_tokenize.py +++ b/Lib/test/test_tokenize.py @@ -333,6 +333,23 @@ c"""', """\ STRING 'rb"\""a\\\\\\nb\\\\\\nc"\""' (1, 0) (3, 4) """) + self.check_tokenize('f"abc"', """\ + STRING 'f"abc"' (1, 0) (1, 6) + """) + self.check_tokenize('fR"a{b}c"', """\ + STRING 'fR"a{b}c"' (1, 0) (1, 9) + """) + self.check_tokenize('f"""abc"""', """\ + STRING 'f\"\"\"abc\"\"\"' (1, 0) (1, 10) + """) + self.check_tokenize(r'f"abc\ +def"', """\ + STRING 'f"abc\\\\\\ndef"' (1, 0) (2, 4) + """) + self.check_tokenize(r'Rf"abc\ +def"', """\ + STRING 'Rf"abc\\\\\\ndef"' (1, 0) (2, 4) + """) def test_function(self): self.check_tokenize("def d22(a, b, c=2, d=2, *k): pass", """\ diff --git a/Lib/tokenize.py b/Lib/tokenize.py --- a/Lib/tokenize.py +++ b/Lib/tokenize.py @@ -29,6 +29,7 @@ import collections from io import TextIOWrapper from itertools import chain +import itertools as _itertools import re import sys from token import * @@ -131,7 +132,28 @@ Imagnumber = group(r'[0-9]+[jJ]', Floatnumber + r'[jJ]') Number = group(Imagnumber, Floatnumber, Intnumber) -StringPrefix = r'(?:[bB][rR]?|[rR][bB]?|[uU])?' +# Return the empty string, plus all of the valid string prefixes. +def _all_string_prefixes(): + # The valid string prefixes. Only contain the lower case versions, + # and don't contain any permuations (include 'fr', but not + # 'rf'). The various permutations will be generated. + _valid_string_prefixes = ['b', 'r', 'u', 'f', 'br', 'fr'] + # if we add binary f-strings, add: ['fb', 'fbr'] + result = set(['']) + for prefix in _valid_string_prefixes: + for t in _itertools.permutations(prefix): + # create a list with upper and lower versions of each + # character + for u in _itertools.product(*[(c, c.upper()) for c in t]): + result.add(''.join(u)) + return result + +def _compile(expr): + return re.compile(expr, re.UNICODE) + +# Note that since _all_string_prefixes includes the empty string, +# StringPrefix can be the empty string (making it optional). +StringPrefix = group(*_all_string_prefixes()) # Tail end of ' string. Single = r"[^'\\]*(?:\\.[^'\\]*)*'" @@ -169,50 +191,25 @@ PseudoExtras = group(r'\\\r?\n|\Z', Comment, Triple) PseudoToken = Whitespace + group(PseudoExtras, Number, Funny, ContStr, Name) -def _compile(expr): - return re.compile(expr, re.UNICODE) +# For a given string prefix plus quotes, endpats maps it to a regex +# to match the remainder of that string. _prefix can be empty, for +# a normal single or triple quoted string (with no prefix). +endpats = {} +for _prefix in _all_string_prefixes(): + endpats[_prefix + "'"] = Single + endpats[_prefix + '"'] = Double + endpats[_prefix + "'''"] = Single3 + endpats[_prefix + '"""'] = Double3 -endpats = {"'": Single, '"': Double, - "'''": Single3, '"""': Double3, - "r'''": Single3, 'r"""': Double3, - "b'''": Single3, 'b"""': Double3, - "R'''": Single3, 'R"""': Double3, - "B'''": Single3, 'B"""': Double3, - "br'''": Single3, 'br"""': Double3, - "bR'''": Single3, 'bR"""': Double3, - "Br'''": Single3, 'Br"""': Double3, - "BR'''": Single3, 'BR"""': Double3, - "rb'''": Single3, 'rb"""': Double3, - "Rb'''": Single3, 'Rb"""': Double3, - "rB'''": Single3, 'rB"""': Double3, - "RB'''": Single3, 'RB"""': Double3, - "u'''": Single3, 'u"""': Double3, - "U'''": Single3, 'U"""': Double3, - 'r': None, 'R': None, 'b': None, 'B': None, - 'u': None, 'U': None} - -triple_quoted = {} -for t in ("'''", '"""', - "r'''", 'r"""', "R'''", 'R"""', - "b'''", 'b"""', "B'''", 'B"""', - "br'''", 'br"""', "Br'''", 'Br"""', - "bR'''", 'bR"""', "BR'''", 'BR"""', - "rb'''", 'rb"""', "rB'''", 'rB"""', - "Rb'''", 'Rb"""', "RB'''", 'RB"""', - "u'''", 'u"""', "U'''", 'U"""', - ): - triple_quoted[t] = t -single_quoted = {} -for t in ("'", '"', - "r'", 'r"', "R'", 'R"', - "b'", 'b"', "B'", 'B"', - "br'", 'br"', "Br'", 'Br"', - "bR'", 'bR"', "BR'", 'BR"' , - "rb'", 'rb"', "rB'", 'rB"', - "Rb'", 'Rb"', "RB'", 'RB"' , - "u'", 'u"', "U'", 'U"', - ): - single_quoted[t] = t +# A set of all of the single and triple quoted string prefixes, +# including the opening quotes. +single_quoted = set() +triple_quoted = set() +for t in _all_string_prefixes(): + for u in (t + '"', t + "'"): + single_quoted.add(u) + for u in (t + '"""', t + "'''"): + triple_quoted.add(u) tabsize = 8 @@ -626,6 +623,7 @@ yield stashed stashed = None yield TokenInfo(COMMENT, token, spos, epos, line) + elif token in triple_quoted: endprog = _compile(endpats[token]) endmatch = endprog.match(line, pos) @@ -638,19 +636,37 @@ contstr = line[start:] contline = line break - elif initial in single_quoted or \ - token[:2] in single_quoted or \ - token[:3] in single_quoted: + + # Check up to the first 3 chars of the token to see if + # they're in the single_quoted set. If so, they start + # a string. + # We're using the first 3, because we're looking for + # "rb'" (for example) at the start of the token. If + # we switch to longer prefixes, this needs to be + # adjusted. + # Note that initial == token[:1]. + # Also note that single quote checking must come afer + # triple quote checking (above). + elif (initial in single_quoted or + token[:2] in single_quoted or + token[:3] in single_quoted): if token[-1] == '\n': # continued string strstart = (lnum, start) - endprog = _compile(endpats[initial] or - endpats[token[1]] or - endpats[token[2]]) + # Again, using the first 3 chars of the + # token. This is looking for the matching end + # regex for the correct type of quote + # character. So it's really looking for + # endpats["'"] or endpats['"'], by trying to + # skip string prefix characters, if any. + endprog = _compile(endpats.get(initial) or + endpats.get(token[1]) or + endpats.get(token[2])) contstr, needcont = line[start:], 1 contline = line break else: # ordinary string yield TokenInfo(STRING, token, spos, epos, line) + elif initial.isidentifier(): # ordinary name if token in ('async', 'await'): if async_def: -- Repository URL: https://hg.python.org/cpython

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cpython: Issue #25154: Make the file argument apply to the print function and
by brett.cannon Oct. 26, 2015

Oct. 26, 2015

https://hg.python.org/cpython/rev/7a5f8418b4ab changeset: 98859:7a5f8418b4ab user: Brett Cannon <brett(a)python.org> date: Sun Oct 25 17:40:31 2015 -0700 summary: Issue #25154: Make the file argument apply to the print function and not str.format call. files: Tools/scripts/pyvenv | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/Tools/scripts/pyvenv b/Tools/scripts/pyvenv --- a/Tools/scripts/pyvenv +++ b/Tools/scripts/pyvenv @@ -5,7 +5,7 @@ executable = pathlib.Path(sys.executable or 'python3').name print('WARNING: the pyenv script is deprecated in favour of ' - '`{} -m venv`'.format(exeutable, file=sys.stderr)) + '`{} -m venv`'.format(exeutable), file=sys.stderr) rc = 1 try: -- Repository URL: https://hg.python.org/cpython

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peps: update pep with ruling by GvR on randbelow, link to bitbucket repo
by steven.daprano Oct. 25, 2015

Oct. 25, 2015

https://hg.python.org/peps/rev/c430dcdd4208 changeset: 6121:c430dcdd4208 user: Steven D'Aprano <steve+python(a)pearwood.info> date: Sun Oct 25 17:29:35 2015 +1100 summary: update pep with ruling by GvR on randbelow, link to bitbucket repo files: pep-0506.txt | 10 ++++++++-- 1 files changed, 8 insertions(+), 2 deletions(-) diff --git a/pep-0506.txt b/pep-0506.txt --- a/pep-0506.txt +++ b/pep-0506.txt @@ -129,7 +129,7 @@ - A function for choosing items from a sequence, ``secrets.choice``. - A function for generating an integer within some range, such as - ``secrets.randrange`` or ``secrets.randint``. + ``secrets.randrange`` or ``secrets.randint`` [#]_. - A function for generating a given number of random bits and/or bytes as an integer. - A similar function which returns the value as a hex digit string. @@ -176,7 +176,7 @@ The ``secrets`` module itself will be pure Python, and other Python implementations can easily make use of it unchanged, or adapt it as -necessary. +necessary. An implementation can be found on BitBucket [#]_. Default arguments ~~~~~~~~~~~~~~~~~ @@ -377,12 +377,18 @@ module. Words do not begin to express how much I am looking forward to this. +.. [#] After considerable discussion, Guido ruled that the module will instead + provide a function, ``randbelow``. See + http://code.activestate.com/lists/python-dev/138375/ + .. [#] https://mail.python.org/pipermail/python-ideas/2015-September/036271.html .. [#] https://mail.python.org/pipermail/python-ideas/2015-September/036350.html .. [#] https://github.com/pyca/cryptography/issues/2347 +.. [#] https://bitbucket.org/sdaprano/secrets + .. [#] https://mail.python.org/pipermail/python-ideas/2015-September/036517.html https://mail.python.org/pipermail/python-ideas/2015-September/036515.html -- Repository URL: https://hg.python.org/peps

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Daily reference leaks (3b552e2811f8): sum=17883
by solipsis＠pitrou.net Oct. 25, 2015

Oct. 25, 2015

results for 3b552e2811f8 on branch "default" -------------------------------------------- test_asyncio leaked [3, 0, 0] memory blocks, sum=3 test_capi leaked [1599, 1599, 1599] references, sum=4797 test_capi leaked [387, 389, 389] memory blocks, sum=1165 test_functools leaked [0, 2, 2] memory blocks, sum=4 test_threading leaked [3196, 3196, 3196] references, sum=9588 test_threading leaked [774, 776, 776] memory blocks, sum=2326 Command line was: ['./python', '-m', 'test.regrtest', '-uall', '-R', '3:3:/home/psf-users/antoine/refleaks/reflog2MlN1C', '--timeout', '7200']

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Benchmark Results for Python 2.7 2015-10-23
by lp_benchmark_robot＠intel.com Oct. 23, 2015

Oct. 23, 2015

Results for project Python 2.7, build date 2015-10-23 13:27:24 +0000 commit: 8247dff49113478964108a24cdc14bf319fae75a revision date: 2015-10-23 10:42:39 +0000 environment: Haswell-EP cpu: Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz 2x18 cores, stepping 2, LLC 45 MB mem: 128 GB os: CentOS 7.1 kernel: Linux 3.10.0-229.4.2.el7.x86_64 Baseline results were generated using release v2.7.10, with hash 15c95b7d81dcf821daade360741e00714667653f from 2015-05-23 16:02:14+00:00 ---------------------------------------------------------------------------------- benchmark relative change since change since current rev run std_dev* last run baseline with PGO ---------------------------------------------------------------------------------- :-) django_v2 0.14% -1.21% 2.55% 10.02% :-) pybench 0.20% -0.19% 6.69% 7.13% :-( regex_v8 0.65% -0.14% -2.12% 7.28% :-) nbody 0.16% 0.38% 8.63% 3.57% :-) json_dump_v2 0.22% 0.47% 3.14% 14.65% :-| normal_startup 1.92% 0.22% -1.73% 2.50% :-| ssbench 0.84% -0.11% 0.90% 2.33% ---------------------------------------------------------------------------------- Note: Benchmark results for ssbench are measured in requests/second while all other are measured in seconds. * Relative Standard Deviation (Standard Deviation/Average) Our lab does a nightly source pull and build of the Python project and measures performance changes against the previous stable version and the previous nightly measurement. This is provided as a service to the community so that quality issues with current hardware can be identified quickly. Intel technologies' features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration.

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Benchmark Results for Python Default 2015-10-23
by lp_benchmark_robot＠intel.com Oct. 23, 2015

Oct. 23, 2015

Results for project Python default, build date 2015-10-23 12:11:13 +0000 commit: db07937b3e4924bd42c2b945fc12721cfcb589bc revision date: 2015-10-23 10:39:20 +0000 environment: Haswell-EP cpu: Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz 2x18 cores, stepping 2, LLC 45 MB mem: 128 GB os: CentOS 7.1 kernel: Linux 3.10.0-229.4.2.el7.x86_64 Baseline results were generated using release v3.4.3, with hash b4cbecbc0781e89a309d03b60a1f75f8499250e6 from 2015-02-25 12:15:33+00:00 ---------------------------------------------------------------------------------- benchmark relative change since change since current rev run std_dev* last run baseline with PGO ---------------------------------------------------------------------------------- :-) django_v2 0.23% -2.38% 6.86% 16.90% :-( pybench 0.17% -0.10% -2.55% 9.17% :-( regex_v8 2.71% 0.00% -4.86% 7.39% :-( nbody 0.12% 1.46% -3.40% 12.24% :-| json_dump_v2 0.29% 0.52% -1.14% 8.69% :-| normal_startup 0.80% 0.29% -0.40% 5.68% ---------------------------------------------------------------------------------- Note: Benchmark results are measured in seconds. * Relative Standard Deviation (Standard Deviation/Average) Our lab does a nightly source pull and build of the Python project and measures performance changes against the previous stable version and the previous nightly measurement. This is provided as a service to the community so that quality issues with current hardware can be identified quickly. Intel technologies' features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration.

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