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gh-91539: improve performance of get_proxies_environment #91566
gh-91539: improve performance of get_proxies_environment #91566
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…vironment variables
…:eendebakpt/cpython into performance/getproxies_environment
Co-authored-by: Carl Meyer <carl@oddbird.net>
Co-authored-by: Carl Meyer <carl@oddbird.net>
Co-authored-by: Carl Meyer <carl@oddbird.net>
Co-authored-by: Carl Meyer <carl@oddbird.net>
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@carljm Thanks for the suggestion. Benchmarks show it is just as fast, and much cleaner code. |
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Sorry I missed this in first review, but the name of the function has a typo (extra underscore) in the NEWS entry.
Also suggested an added comment. (Wouldn't have bothered with this if it was the only thing, but may be worth it if you are doing one more update to fix NEWS anyway.)
Thanks for the improvements to this function!
Misc/NEWS.d/next/Library/2022-04-15-11-29-38.gh-issue-91539.7WgVuA.rst
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…gVuA.rst Co-authored-by: Carl Meyer <carl@oddbird.net>
Co-authored-by: Carl Meyer <carl@oddbird.net>
@ambv As the latest core dev touching |
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LGTM
Thanks @eendebakpt for the PR, and @orsenthil for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11. |
GH-97918 is a backport of this pull request to the 3.11 branch. |
…nGH-91566) * improve performance of get_proxies_environment when there are many environment variables * 📜🤖 Added by blurb_it. * fix case of short env name * fix formatting * fix whitespace * whitespace * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * whitespace * Update Misc/NEWS.d/next/Library/2022-04-15-11-29-38.gh-issue-91539.7WgVuA.rst Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Carl Meyer <carl@oddbird.net> (cherry picked from commit aeb28f5) Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
GH-97919 is a backport of this pull request to the 3.10 branch. |
…nGH-91566) * improve performance of get_proxies_environment when there are many environment variables * 📜🤖 Added by blurb_it. * fix case of short env name * fix formatting * fix whitespace * whitespace * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * whitespace * Update Misc/NEWS.d/next/Library/2022-04-15-11-29-38.gh-issue-91539.7WgVuA.rst Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Carl Meyer <carl@oddbird.net> (cherry picked from commit aeb28f5) Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
* improve performance of get_proxies_environment when there are many environment variables * 📜🤖 Added by blurb_it. * fix case of short env name * fix formatting * fix whitespace * whitespace * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * whitespace * Update Misc/NEWS.d/next/Library/2022-04-15-11-29-38.gh-issue-91539.7WgVuA.rst Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Carl Meyer <carl@oddbird.net> (cherry picked from commit aeb28f5) Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
* main: (66 commits) pythongh-65961: Raise `DeprecationWarning` when `__package__` differs from `__spec__.parent` (python#97879) docs(typing): add "see PEP 675" to LiteralString (python#97926) pythongh-97850: Remove all known instances of module_repr() (python#97876) I changed my surname early this year (python#96671) pythongh-93738: Documentation C syntax (:c:type:<C type> -> :c:expr:<C type>) (python#97768) pythongh-91539: improve performance of get_proxies_environment (python#91566) build(deps): bump actions/stale from 5 to 6 (python#97701) pythonGH-95172 Make the same version `versionadded` oneline (python#95172) pythongh-88050: Fix asyncio subprocess to kill process cleanly when process is blocked (python#32073) pythongh-93738: Documentation C syntax (Function glob patterns -> literal markup) (python#97774) pythongh-93357: Port test cases to IsolatedAsyncioTestCase, part 2 (python#97896) pythongh-95196: Disable incorrect pickling of the C implemented classmethod descriptors (pythonGH-96383) pythongh-97758: Fix a crash in getpath_joinpath() called without arguments (pythonGH-97759) pythongh-74696: Pass root_dir to custom archivers which support it (pythonGH-94251) pythongh-97661: Improve accuracy of sqlite3.Cursor.fetchone docs (python#97662) pythongh-87092: bring compiler code closer to a preprocessing-opt-assembler organisation (pythonGH-97644) pythonGH-96704: Add {Task,Handle}.get_context(), use it in call_exception_handler() (python#96756) pythongh-93738: Documentation C syntax (:c:type:`PyTypeObject*` -> :c:expr:`PyTypeObject*`) (python#97778) pythongh-97825: fix AttributeError when calling subprocess.check_output(input=None) with encoding or errors args (python#97826) Add re.VERBOSE flag documentation example (python#97678) ...
* main: (53 commits) pythongh-94808: Coverage: Test that maximum indentation level is handled (python#95926) pythonGH-88050: fix race in closing subprocess pipe in asyncio (python#97951) pythongh-93738: Disallow pre-v3 syntax in the C domain (python#97962) pythongh-95986: Fix the example using match keyword (python#95989) pythongh-97897: Prevent os.mkfifo and os.mknod segfaults with macOS 13 SDK (pythonGH-97944) pythongh-94808: Cover `PyUnicode_Count` in CAPI (python#96929) pythongh-94808: Cover `PyObject_PyBytes` case with custom `__bytes__` method (python#96610) pythongh-95691: Doc BufferedWriter and BufferedReader (python#95703) pythonGH-88968: Add notes about socket ownership transfers (python#97936) pythongh-96865: [Enum] fix Flag to use CONFORM boundary (pythonGH-97528) pythongh-65961: Raise `DeprecationWarning` when `__package__` differs from `__spec__.parent` (python#97879) docs(typing): add "see PEP 675" to LiteralString (python#97926) pythongh-97850: Remove all known instances of module_repr() (python#97876) I changed my surname early this year (python#96671) pythongh-93738: Documentation C syntax (:c:type:<C type> -> :c:expr:<C type>) (python#97768) pythongh-91539: improve performance of get_proxies_environment (python#91566) build(deps): bump actions/stale from 5 to 6 (python#97701) pythonGH-95172 Make the same version `versionadded` oneline (python#95172) pythongh-88050: Fix asyncio subprocess to kill process cleanly when process is blocked (python#32073) pythongh-93738: Documentation C syntax (Function glob patterns -> literal markup) (python#97774) ...
…n#91566) * improve performance of get_proxies_environment when there are many environment variables * 📜🤖 Added by blurb_it. * fix case of short env name * fix formatting * fix whitespace * whitespace * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> * whitespace * Update Misc/NEWS.d/next/Library/2022-04-15-11-29-38.gh-issue-91539.7WgVuA.rst Co-authored-by: Carl Meyer <carl@oddbird.net> * Update Lib/urllib/request.py Co-authored-by: Carl Meyer <carl@oddbird.net> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Carl Meyer <carl@oddbird.net>
Improve performance of
get_proxies_environment
when there are many environment variables. Improvements depend on the number of environment variables, but the method is several times faster in this PR.Fixes #91539
Performance test details
Results:
with