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 |
|---|---|---|
| Python.asdl | -rw-r--r-- | 5.0 KB |
| acceler.c | -rw-r--r-- | 3.3 KB |
| asdl.py | -rw-r--r-- | 12.6 KB |
| asdl_c.py | -rw-r--r-- | 43.2 KB |
| bitset.c | -rw-r--r-- | 1.0 KB |
| firstsets.c | -rw-r--r-- | 2.8 KB |
| grammar.c | -rw-r--r-- | 7.4 KB |
| grammar1.c | -rw-r--r-- | 1.3 KB |
| listnode.c | -rw-r--r-- | 1.3 KB |
| metagrammar.c | -rw-r--r-- | 2.4 KB |
| myreadline.c | -rw-r--r-- | 10.6 KB |
| node.c | -rw-r--r-- | 4.4 KB |
| parser.c | -rw-r--r-- | 11.6 KB |
| parser.h | -rw-r--r-- | 1.2 KB |
| parsetok.c | -rw-r--r-- | 10.5 KB |
| parsetok_pgen.c | -rw-r--r-- | 35 bytes |
| pgen.c | -rw-r--r-- | 17.9 KB |
| pgenmain.c | -rw-r--r-- | 4.0 KB |
| printgrammar.c | -rw-r--r-- | 2.9 KB |
| tokenizer.c | -rw-r--r-- | 52.1 KB |
| tokenizer.h | -rw-r--r-- | 3.1 KB |
| tokenizer_pgen.c | -rw-r--r-- | 36 bytes |
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