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Pluggable optimizer API
3.13
bugs and security fixes
interpreter-core
(Objects, Python, Grammar, and Parser dirs)
performance
Performance or resource usage
#104584
opened May 17, 2023 by
markshannon
Slow inspect.getmodule
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
type-bug
An unexpected behavior, bug, or error
#92041
opened Apr 29, 2022 by
mdeck
JIT: improve AArch64 code generation
3.14
new features, bugs and security fixes
interpreter-core
(Objects, Python, Grammar, and Parser dirs)
performance
Performance or resource usage
topic-JIT
type-feature
A feature request or enhancement
#119726
opened May 29, 2024 by
diegorusso
2 of 5 tasks
performance: can we update io.DEFAULT_BUFFER_SIZE to make python IO 3 times faster? :)
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
topic-IO
#117151
opened Mar 22, 2024 by
morotti
Make rawiobase_read() read directly to bytes object
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
topic-IO
#60107
opened Sep 10, 2012 by
sbt
mannequin
doc: pathological performance using tarfile
3.10
only security fixes
3.11
only security fixes
3.12
bugs and security fixes
docs
Documentation in the Doc dir
easy
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
#62944
opened Aug 15, 2013 by
teamnoir
mannequin
Calling assertEquals for moderately long list takes too long
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
#63416
opened Oct 10, 2013 by
JacekBzdak
mannequin
Use the _functools module to speed up functools.total_ordering
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
#66268
opened Jul 25, 2014 by
ncoghlan
multiprocessing .Condition.notify(_all) function has O(N) time complexity where N is the number of wait() calls with a timeout since the last notify(_all) call
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
topic-multiprocessing
#69655
opened Oct 24, 2015 by
vilnistermanis
mannequin
Low FD_SETSIZE limit on Windows
3.12
bugs and security fixes
extension-modules
C modules in the Modules dir
OS-windows
performance
Performance or resource usage
#72894
opened Nov 15, 2016 by
DavidHirschfeld
mannequin
urllib2 works slowly with proxy on windows
3.10
only security fixes
3.11
only security fixes
3.12
bugs and security fixes
OS-windows
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
#73719
opened Feb 11, 2017 by
juliadolgova
mannequin
Optimize calling type slots
3.12
bugs and security fixes
interpreter-core
(Objects, Python, Grammar, and Parser dirs)
performance
Performance or resource usage
#74694
opened May 30, 2017 by
serhiy-storchaka
Excessive memory use or memory fragmentation when unpickling many small objects
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
#80875
opened Apr 21, 2019 by
Paul-E
mannequin
Garbage Collection makes some object live for very long
3.12
bugs and security fixes
interpreter-core
(Objects, Python, Grammar, and Parser dirs)
performance
Performance or resource usage
#83242
opened Dec 16, 2019 by
mistasse
mannequin
A little faster ElementTree serializing
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
topic-XML
#70069
opened Dec 16, 2015 by
serhiy-storchaka
Use sendfile where possible in httplib
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
#57768
opened Dec 8, 2011 by
benjaminp
ftplib and sendfile()
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
#57773
opened Dec 9, 2011 by
giampaolo
[easy C] long type performance waste in 64-bit Windows build
3.12
bugs and security fixes
OS-windows
performance
Performance or resource usage
#86470
opened Nov 10, 2020 by
animalize
mannequin
date.today() is half as fast as datetime.now().date()
3.12
bugs and security fixes
extension-modules
C modules in the Modules dir
performance
Performance or resource usage
#88473
opened Jun 4, 2021 by
asottile
mannequin
Certain methods that heap allocated subtypes inherit suffer a 50-80% performance penalty
3.12
bugs and security fixes
performance
Performance or resource usage
topic-C-API
#78577
opened Aug 13, 2018 by
mr-nfamous
mannequin
Convert collections (cmp_op, hasconst, hasname and others) in opcode module to more optimal type
3.12
bugs and security fixes
performance
Performance or resource usage
stdlib
Python modules in the Lib dir
#77507
opened Apr 21, 2018 by
godaygo
mannequin
sum() several times slower on Python 3 64-bit
3.11
only security fixes
interpreter-core
(Objects, Python, Grammar, and Parser dirs)
performance
Performance or resource usage
#68264
opened Apr 29, 2015 by
ambv
Use zlib-ng or chromium's zlib rather than mainline stale zlib in binary releases
3.13
bugs and security fixes
OS-windows
performance
Performance or resource usage
#91349
opened Apr 1, 2022 by
gpshead
Quicken everything
3.12
bugs and security fixes
interpreter-core
(Objects, Python, Grammar, and Parser dirs)
performance
Performance or resource usage
#98686
opened Oct 25, 2022 by
brandtbucher
Speed up sysconfig
performance
Performance or resource usage
topic-sysconfig
type-feature
A feature request or enhancement
#98718
opened Oct 26, 2022 by
FFY00
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