Mailman 3 January 2017 - Python-checkins

cpython: Issue #29383: reduce temporary interned unicode
by inada.naoki 28 Jan '17

28 Jan '17

https://hg.python.org/cpython/rev/d7ec72c1620c changeset: 106326:d7ec72c1620c parent: 106324:46f8188f8646 user: INADA Naoki <songofacandy(a)gmail.com> date: Sat Jan 28 16:35:44 2017 +0900 summary: Issue #29383: reduce temporary interned unicode add_methods(), add_members(), and add_getset() used PyDict_SetItemString() to register descriptor to the type's dict. So descr_new() and PyDict_SetItemString() creates interned unicode from same C string. This patch takes interned unicode from descriptor, and use PyDict_SetItem() instead of PyDict_SetItemString(). python_startup_no_site: default: Median +- std dev: 12.7 ms +- 0.1 ms patched: Median +- std dev: 12.5 ms +- 0.1 ms files: Objects/typeobject.c | 13 ++++++++++--- 1 files changed, 10 insertions(+), 3 deletions(-) diff --git a/Objects/typeobject.c b/Objects/typeobject.c --- a/Objects/typeobject.c +++ b/Objects/typeobject.c @@ -4539,6 +4539,7 @@ for (; meth->ml_name != NULL; meth++) { PyObject *descr; int err; + int isdescr = 1; if (PyDict_GetItemString(dict, meth->ml_name) && !(meth->ml_flags & METH_COEXIST)) continue; @@ -4555,6 +4556,7 @@ if (cfunc == NULL) return -1; descr = PyStaticMethod_New(cfunc); + isdescr = 0; // PyStaticMethod is not PyDescrObject Py_DECREF(cfunc); } else { @@ -4562,7 +4564,12 @@ } if (descr == NULL) return -1; - err = PyDict_SetItemString(dict, meth->ml_name, descr); + if (isdescr) { + err = PyDict_SetItem(dict, PyDescr_NAME(descr), descr); + } + else { + err = PyDict_SetItemString(dict, meth->ml_name, descr); + } Py_DECREF(descr); if (err < 0) return -1; @@ -4582,7 +4589,7 @@ descr = PyDescr_NewMember(type, memb); if (descr == NULL) return -1; - if (PyDict_SetItemString(dict, memb->name, descr) < 0) { + if (PyDict_SetItem(dict, PyDescr_NAME(descr), descr) < 0) { Py_DECREF(descr); return -1; } @@ -4604,7 +4611,7 @@ if (descr == NULL) return -1; - if (PyDict_SetItemString(dict, gsp->name, descr) < 0) { + if (PyDict_SetItem(dict, PyDescr_NAME(descr), descr) < 0) { Py_DECREF(descr); return -1; } -- Repository URL: https://hg.python.org/cpython

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cpython (2.7): Add clarity to the warning on certificate verification in urllib.
by senthil.kumaran 28 Jan '17

28 Jan '17

https://hg.python.org/cpython/rev/b5125e971fdd changeset: 106325:b5125e971fdd branch: 2.7 parent: 106315:743ff7902879 user: Senthil Kumaran <senthil(a)uthcode.com> date: Fri Jan 27 23:05:34 2017 -0800 summary: Add clarity to the warning on certificate verification in urllib. files: Doc/library/urllib.rst | 13 +++++++++---- 1 files changed, 9 insertions(+), 4 deletions(-) diff --git a/Doc/library/urllib.rst b/Doc/library/urllib.rst --- a/Doc/library/urllib.rst +++ b/Doc/library/urllib.rst @@ -26,11 +26,16 @@ .. seealso:: - The `Requests package <http://requests.readthedocs.org/>`_ + The `Requests package <http://docs.python-requests.org/>`_ is recommended for a higher-level HTTP client interface. -.. warning:: When opening HTTPS URLs, it does not attempt to validate the - server certificate. Use at your own risk! +.. versionchanged:: 2.7.9 + + For HTTPS URIs, :mod:`urllib` performs all the neccessary certificate and hostname checks by default. + +.. warning:: + + For Python versions earlier than 2.7.9, urllib does not attempt to validate the server certificates of HTTPS URIs. Use at your own risk! High-level interface @@ -142,7 +147,7 @@ :envvar:`no_proxy` environment variable. .. versionchanged:: 2.7.9 - The *context* parameter was added. + The *context* parameter was added. All the neccessary certificate and hostname checks are done by default. .. deprecated:: 2.6 The :func:`urlopen` function has been removed in Python 3 in favor -- Repository URL: https://hg.python.org/cpython

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BAD Benchmark Results for Python Default 2017-01-27
by lp_benchmark_robot＠intel.com 27 Jan '17

27 Jan '17

Results for project Python default, build date 2017-01-27 11:03:34 +0000 commit: 34fb29694c76 previous commit: 8feb6a5ce4c6 revision date: 2017-01-26 07:35:46 +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 b4cbecbc0781 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% -2.87% 7.33% 17.90% :-) pybench 0.12% 0.47% 3.06% 5.69% :-| regex_v8 3.61% 0.07% 0.96% 3.39% :-) nbody 0.11% 0.13% 3.62% 0.30% :-) json_dump_v2 0.28% 0.67% 9.99% 9.27% :-| normal_startup 0.92% -0.20% -0.36% 6.12% ---------------------------------------------------------------------------------- * Relative Standard Deviation (Standard Deviation/Average) If this is not displayed properly please visit our results page here: http://languagesperformance.intel.com/bad-benchmark-results-for-python-defa… Note: Benchmark results are measured in seconds. Subject Label Legend: Attributes are determined based on the performance evolution of the workloads compared to the previous measurement iteration. NEUTRAL: performance did not change by more than 1% for any workload GOOD: performance improved by more than 1% for at least one workload and there is no regression greater than 1% BAD: performance dropped by more than 1% for at least one workload and there is no improvement greater than 1% UGLY: performance improved by more than 1% for at least one workload and also dropped by more than 1% for at least one workload 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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BAD Benchmark Results for Python 2.7 2017-01-27
by lp_benchmark_robot＠intel.com 27 Jan '17

27 Jan '17

No new revisions. Here are the previous results: Results for project Python 2.7, build date 2017-01-27 11:47:56 +0000 commit: 743ff7902879 previous commit: fb2885f9b4dd revision date: 2017-01-25 11:28:45 +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 15c95b7d81dc 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 0.21% -1.36% 4.59% 6.86% :-) pybench 0.15% -0.17% 7.63% 3.00% :-| regex_v8 0.79% -0.11% -0.24% 9.78% :-) nbody 0.06% -2.81% 11.28% 3.16% :-| json_dump_v2 0.26% -1.02% 0.50% 9.06% :-( normal_startup 1.88% 0.04% -2.47% 1.97% :-| ssbench 0.13% -0.14% 0.06% 2.39% ---------------------------------------------------------------------------------- * Relative Standard Deviation (Standard Deviation/Average) If this is not displayed properly please visit our results page here: http://languagesperformance.intel.com/bad-benchmark-results-for-python-2-7-… Note: Benchmark results for ssbench are measured in requests/second while all other are measured in seconds. Subject Label Legend: Attributes are determined based on the performance evolution of the workloads compared to the previous measurement iteration. NEUTRAL: performance did not change by more than 1% for any workload GOOD: performance improved by more than 1% for at least one workload and there is no regression greater than 1% BAD: performance dropped by more than 1% for at least one workload and there is no improvement greater than 1% UGLY: performance improved by more than 1% for at least one workload and also dropped by more than 1% for at least one workload 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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cpython (merge 3.6 -> default): Closes #28784: Merged update from 3.6.
by vinay.sajip 27 Jan '17

27 Jan '17

https://hg.python.org/cpython/rev/46f8188f8646 changeset: 106324:46f8188f8646 parent: 106322:aef895fef120 parent: 106323:ff3312ce1d14 user: Vinay Sajip <vinay_sajip(a)yahoo.co.uk> date: Fri Jan 27 13:05:09 2017 +0000 summary: Closes #28784: Merged update from 3.6. files: Doc/library/shlex.rst | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/Doc/library/shlex.rst b/Doc/library/shlex.rst --- a/Doc/library/shlex.rst +++ b/Doc/library/shlex.rst @@ -411,4 +411,6 @@ >>> list(s) ['~/a', '&&', 'b-c', '--color=auto', '||', 'd', '*.py?'] - +For best effect, ``punctuation_chars`` should be set in conjunction with +``posix=True``. (Note that ``posix=False`` is the default for +:class:`~shlex.shlex`.) -- Repository URL: https://hg.python.org/cpython

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cpython (3.6): Fixes #28784: Clarified use of shlex.shlex with punctuation_chars.
by vinay.sajip 27 Jan '17

27 Jan '17

https://hg.python.org/cpython/rev/ff3312ce1d14 changeset: 106323:ff3312ce1d14 branch: 3.6 parent: 106321:d3890b44159c user: Vinay Sajip <vinay_sajip(a)yahoo.co.uk> date: Fri Jan 27 13:04:33 2017 +0000 summary: Fixes #28784: Clarified use of shlex.shlex with punctuation_chars. files: Doc/library/shlex.rst | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/Doc/library/shlex.rst b/Doc/library/shlex.rst --- a/Doc/library/shlex.rst +++ b/Doc/library/shlex.rst @@ -411,4 +411,6 @@ >>> list(s) ['~/a', '&&', 'b-c', '--color=auto', '||', 'd', '*.py?'] - +For best effect, ``punctuation_chars`` should be set in conjunction with +``posix=True``. (Note that ``posix=False`` is the default for +:class:`~shlex.shlex`.) -- Repository URL: https://hg.python.org/cpython

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cpython (merge 3.5 -> 3.6): Fixes #29308: Merged fix from 3.5.
by vinay.sajip 27 Jan '17

27 Jan '17

https://hg.python.org/cpython/rev/d3890b44159c changeset: 106321:d3890b44159c branch: 3.6 parent: 106318:3275d4b584a2 parent: 106320:91b949dc1984 user: Vinay Sajip <vinay_sajip(a)yahoo.co.uk> date: Fri Jan 27 12:42:45 2017 +0000 summary: Fixes #29308: Merged fix from 3.5. files: Lib/venv/scripts/nt/Activate.ps1 | 16 +++++++++------- 1 files changed, 9 insertions(+), 7 deletions(-) diff --git a/Lib/venv/scripts/nt/Activate.ps1 b/Lib/venv/scripts/nt/Activate.ps1 --- a/Lib/venv/scripts/nt/Activate.ps1 +++ b/Lib/venv/scripts/nt/Activate.ps1 @@ -29,13 +29,15 @@ $env:VIRTUAL_ENV="__VENV_DIR__" -# Set the prompt to include the env name -# Make sure _OLD_VIRTUAL_PROMPT is global -function global:_OLD_VIRTUAL_PROMPT {""} -copy-item function:prompt function:_OLD_VIRTUAL_PROMPT -function global:prompt { - Write-Host -NoNewline -ForegroundColor Green '__VENV_PROMPT__' - _OLD_VIRTUAL_PROMPT +if (! $env:VIRTUAL_ENV_DISABLE_PROMPT) { + # Set the prompt to include the env name + # Make sure _OLD_VIRTUAL_PROMPT is global + function global:_OLD_VIRTUAL_PROMPT {""} + copy-item function:prompt function:_OLD_VIRTUAL_PROMPT + function global:prompt { + Write-Host -NoNewline -ForegroundColor Green '__VENV_PROMPT__' + _OLD_VIRTUAL_PROMPT + } } # Clear PYTHONHOME -- Repository URL: https://hg.python.org/cpython

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cpython (3.5): Fixes #29308: Respect VIRTUAL_ENV_DISABLE_PROMPT in Activate.ps1.
by vinay.sajip 27 Jan '17

27 Jan '17

https://hg.python.org/cpython/rev/91b949dc1984 changeset: 106320:91b949dc1984 branch: 3.5 parent: 106312:96f5327f7253 user: Vinay Sajip <vinay_sajip(a)yahoo.co.uk> date: Fri Jan 27 12:41:27 2017 +0000 summary: Fixes #29308: Respect VIRTUAL_ENV_DISABLE_PROMPT in Activate.ps1. files: Lib/venv/scripts/nt/Activate.ps1 | 16 +++++++++------- 1 files changed, 9 insertions(+), 7 deletions(-) diff --git a/Lib/venv/scripts/nt/Activate.ps1 b/Lib/venv/scripts/nt/Activate.ps1 --- a/Lib/venv/scripts/nt/Activate.ps1 +++ b/Lib/venv/scripts/nt/Activate.ps1 @@ -29,13 +29,15 @@ $env:VIRTUAL_ENV="__VENV_DIR__" -# Set the prompt to include the env name -# Make sure _OLD_VIRTUAL_PROMPT is global -function global:_OLD_VIRTUAL_PROMPT {""} -copy-item function:prompt function:_OLD_VIRTUAL_PROMPT -function global:prompt { - Write-Host -NoNewline -ForegroundColor Green '__VENV_PROMPT__' - _OLD_VIRTUAL_PROMPT +if (! $env:VIRTUAL_ENV_DISABLE_PROMPT) { + # Set the prompt to include the env name + # Make sure _OLD_VIRTUAL_PROMPT is global + function global:_OLD_VIRTUAL_PROMPT {""} + copy-item function:prompt function:_OLD_VIRTUAL_PROMPT + function global:prompt { + Write-Host -NoNewline -ForegroundColor Green '__VENV_PROMPT__' + _OLD_VIRTUAL_PROMPT + } } # Clear PYTHONHOME -- Repository URL: https://hg.python.org/cpython

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cpython (merge 3.6 -> default): Closes #29308: Merged fix from 3.6.
by vinay.sajip 27 Jan '17

27 Jan '17

https://hg.python.org/cpython/rev/aef895fef120 changeset: 106322:aef895fef120 parent: 106319:34fb29694c76 parent: 106321:d3890b44159c user: Vinay Sajip <vinay_sajip(a)yahoo.co.uk> date: Fri Jan 27 12:43:41 2017 +0000 summary: Closes #29308: Merged fix from 3.6. files: Lib/venv/scripts/nt/Activate.ps1 | 16 +++++++++------- 1 files changed, 9 insertions(+), 7 deletions(-) diff --git a/Lib/venv/scripts/nt/Activate.ps1 b/Lib/venv/scripts/nt/Activate.ps1 --- a/Lib/venv/scripts/nt/Activate.ps1 +++ b/Lib/venv/scripts/nt/Activate.ps1 @@ -29,13 +29,15 @@ $env:VIRTUAL_ENV="__VENV_DIR__" -# Set the prompt to include the env name -# Make sure _OLD_VIRTUAL_PROMPT is global -function global:_OLD_VIRTUAL_PROMPT {""} -copy-item function:prompt function:_OLD_VIRTUAL_PROMPT -function global:prompt { - Write-Host -NoNewline -ForegroundColor Green '__VENV_PROMPT__' - _OLD_VIRTUAL_PROMPT +if (! $env:VIRTUAL_ENV_DISABLE_PROMPT) { + # Set the prompt to include the env name + # Make sure _OLD_VIRTUAL_PROMPT is global + function global:_OLD_VIRTUAL_PROMPT {""} + copy-item function:prompt function:_OLD_VIRTUAL_PROMPT + function global:prompt { + Write-Host -NoNewline -ForegroundColor Green '__VENV_PROMPT__' + _OLD_VIRTUAL_PROMPT + } } # Clear PYTHONHOME -- Repository URL: https://hg.python.org/cpython

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Daily reference leaks (34fb29694c76): sum=-2
by solipsis＠pitrou.net 27 Jan '17

27 Jan '17

results for 34fb29694c76 on branch "default" -------------------------------------------- test_collections leaked [-7, 8, -7] memory blocks, sum=-6 test_functools leaked [0, 3, 1] memory blocks, sum=4 Command line was: ['./python', '-m', 'test.regrtest', '-uall', '-R', '3:3:/home/psf-users/antoine/refleaks/reflog8AQi25', '--timeout', '7200']

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