Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Revision 049039832da3d02592d680cebf71ab8a665a6564 authored by Antoine Pitrou on 10 June 2020, 20:37:21 UTC, committed by GitHub on 10 June 2020, 20:37:21 UTC
The doccumentation at https://docs.python.org/3.10/library/weakref.html cautions that the `WeakKeyDictionary` and `WeakValueDictionary` are susceptible to the problem of dictionary mutation during iteration. These notes present the user with a problem that has no easy solution. I dug into the implementation and found that fortunately, Antoine Pitrou already addressed this challenge (10 years ago!) by introducing an `_IterationGuard` context manager to the implementation, which delays mutation while an iteration is in progress. I asked for confirmation and @pitrou agreed that these notes could be removed: https://github.com/python/cpython/commit/c1baa601e2b558deb690edfdf334fceee3b03327GH-commitcomment-39514438. (cherry picked from commit 1642c0ef750f96664a98cadb09301d492098d2fb) Co-authored-by: Daniel Fortunov <asqui@users.noreply.github.com> Automerge-Triggered-By: @pitrou
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Tip revision: 049039832da3d02592d680cebf71ab8a665a6564 authored by Antoine Pitrou on 10 June 2020, 20:37:21 UTC
[3.7] bpo-40895: Update weakref documentation to remove old warnings (GH-20687) (GH-20793)
[3.7] bpo-40895: Update weakref documentation to remove old warnings (GH-20687) (GH-20793)
Tip revision: 0490398
| File | Mode | Size |
|---|---|---|
| internal | ||
| Python-ast.h | -rw-r--r-- | 21.3 KB |
| Python.h | -rw-r--r-- | 3.5 KB |
| abstract.h | -rw-r--r-- | 39.8 KB |
| accu.h | -rw-r--r-- | 1016 bytes |
| asdl.h | -rw-r--r-- | 1.2 KB |
| ast.h | -rw-r--r-- | 641 bytes |
| bitset.h | -rw-r--r-- | 810 bytes |
| bltinmodule.h | -rw-r--r-- | 264 bytes |
| boolobject.h | -rw-r--r-- | 886 bytes |
| bytearrayobject.h | -rw-r--r-- | 2.1 KB |
| bytes_methods.h | -rw-r--r-- | 3.2 KB |
| bytesobject.h | -rw-r--r-- | 8.3 KB |
| cellobject.h | -rw-r--r-- | 713 bytes |
| ceval.h | -rw-r--r-- | 8.5 KB |
| classobject.h | -rw-r--r-- | 1.6 KB |
| code.h | -rw-r--r-- | 5.9 KB |
| codecs.h | -rw-r--r-- | 6.6 KB |
| compile.h | -rw-r--r-- | 2.9 KB |
| complexobject.h | -rw-r--r-- | 1.8 KB |
| context.h | -rw-r--r-- | 2.0 KB |
| datetime.h | -rw-r--r-- | 9.6 KB |
| descrobject.h | -rw-r--r-- | 3.1 KB |
| dictobject.h | -rw-r--r-- | 7.2 KB |
| dtoa.h | -rw-r--r-- | 458 bytes |
| dynamic_annotations.h | -rw-r--r-- | 21.9 KB |
| enumobject.h | -rw-r--r-- | 253 bytes |
| errcode.h | -rw-r--r-- | 1.7 KB |
| eval.h | -rw-r--r-- | 1.2 KB |
| fileobject.h | -rw-r--r-- | 1.8 KB |
| fileutils.h | -rw-r--r-- | 4.4 KB |
| floatobject.h | -rw-r--r-- | 4.7 KB |
| frameobject.h | -rw-r--r-- | 3.2 KB |
| funcobject.h | -rw-r--r-- | 4.1 KB |
| genobject.h | -rw-r--r-- | 3.6 KB |
| graminit.h | -rw-r--r-- | 1.9 KB |
| grammar.h | -rw-r--r-- | 2.3 KB |
| import.h | -rw-r--r-- | 4.9 KB |
| intrcheck.h | -rw-r--r-- | 861 bytes |
| iterobject.h | -rw-r--r-- | 567 bytes |
| listobject.h | -rw-r--r-- | 2.9 KB |
| longintrepr.h | -rw-r--r-- | 3.7 KB |
| longobject.h | -rw-r--r-- | 8.4 KB |
| marshal.h | -rw-r--r-- | 803 bytes |
| memoryobject.h | -rw-r--r-- | 2.7 KB |
| metagrammar.h | -rw-r--r-- | 253 bytes |
| methodobject.h | -rw-r--r-- | 4.4 KB |
| modsupport.h | -rw-r--r-- | 8.4 KB |
| moduleobject.h | -rw-r--r-- | 2.2 KB |
| namespaceobject.h | -rw-r--r-- | 349 bytes |
| node.h | -rw-r--r-- | 1.1 KB |
| object.h | -rw-r--r-- | 40.9 KB |
| objimpl.h | -rw-r--r-- | 14.1 KB |
| odictobject.h | -rw-r--r-- | 1.2 KB |
| opcode.h | -rw-r--r-- | 5.0 KB |
| osdefs.h | -rw-r--r-- | 691 bytes |
| osmodule.h | -rw-r--r-- | 291 bytes |
| parsetok.h | -rw-r--r-- | 2.8 KB |
| patchlevel.h | -rw-r--r-- | 1.3 KB |
| pgen.h | -rw-r--r-- | 253 bytes |
| pgenheaders.h | -rw-r--r-- | 1.2 KB |
| py_curses.h | -rw-r--r-- | 4.0 KB |
| pyarena.h | -rw-r--r-- | 2.7 KB |
| pyatomic.h | -rw-r--r-- | 15.7 KB |
| pycapsule.h | -rw-r--r-- | 1.7 KB |
| pyctype.h | -rw-r--r-- | 1.3 KB |
| pydebug.h | -rw-r--r-- | 1.2 KB |
| pydtrace.d | -rw-r--r-- | 969 bytes |
| pydtrace.h | -rw-r--r-- | 2.2 KB |
| pyerrors.h | -rw-r--r-- | 17.0 KB |
| pyexpat.h | -rw-r--r-- | 2.4 KB |
| pyfpe.h | -rw-r--r-- | 341 bytes |
| pyhash.h | -rw-r--r-- | 4.0 KB |
| pylifecycle.h | -rw-r--r-- | 7.6 KB |
| pymacconfig.h | -rw-r--r-- | 2.9 KB |
| pymacro.h | -rw-r--r-- | 3.5 KB |
| pymath.h | -rw-r--r-- | 8.1 KB |
| pymem.h | -rw-r--r-- | 8.8 KB |
| pyport.h | -rw-r--r-- | 27.6 KB |
| pystate.h | -rw-r--r-- | 15.9 KB |
| pystrcmp.h | -rw-r--r-- | 436 bytes |
| pystrhex.h | -rw-r--r-- | 495 bytes |
| pystrtod.h | -rw-r--r-- | 1.4 KB |
| pythonrun.h | -rw-r--r-- | 6.1 KB |
| pythread.h | -rw-r--r-- | 5.2 KB |
| pytime.h | -rw-r--r-- | 8.7 KB |
| rangeobject.h | -rw-r--r-- | 629 bytes |
| setobject.h | -rw-r--r-- | 3.3 KB |
| sliceobject.h | -rw-r--r-- | 2.4 KB |
| structmember.h | -rw-r--r-- | 2.0 KB |
| structseq.h | -rw-r--r-- | 1.3 KB |
| symtable.h | -rw-r--r-- | 4.8 KB |
| sysmodule.h | -rw-r--r-- | 1.5 KB |
| token.h | -rw-r--r-- | 2.4 KB |
| traceback.h | -rw-r--r-- | 3.6 KB |
| tupleobject.h | -rw-r--r-- | 2.4 KB |
| typeslots.h | -rw-r--r-- | 2.2 KB |
| ucnhash.h | -rw-r--r-- | 1.0 KB |
| unicodeobject.h | -rw-r--r-- | 80.3 KB |
| warnings.h | -rw-r--r-- | 1.7 KB |
| weakrefobject.h | -rw-r--r-- | 2.8 KB |
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