Repository navigation
Expand file tree
/
Copy pathasyncio-task.po
More file actions
2024 lines (1739 loc) · 62.4 KB
/
Copy pathasyncio-task.po
File metadata and controls
2024 lines (1739 loc) · 62.4 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
# SOME DESCRIPTIVE TITLE.
# Copyright (C) 2001 Python Software Foundation
# This file is distributed under the same license as the Python package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
# Translators:
# python-doc bot, 2025
#
msgid ""
msgstr ""
"Project-Id-Version: Python 3.15\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2026-09-14 20:17+0000\n"
"PO-Revision-Date: 2025-09-16 00:00+0000\n"
"Last-Translator: python-doc bot, 2025\n"
"Language-Team: German (https://app.transifex.com/python-doc/teams/5390/de/)\n"
"Language: de\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
#: ../../library/asyncio-task.rst:6
msgid "Coroutines and tasks"
msgstr ""
#: ../../library/asyncio-task.rst:8
msgid ""
"This section outlines high-level asyncio APIs to work with coroutines and "
"Tasks."
msgstr ""
#: ../../library/asyncio-task.rst:19 ../../library/asyncio-task.rst:148
msgid "Coroutines"
msgstr ""
#: ../../library/asyncio-task.rst:21
msgid "**Source code:** :source:`Lib/asyncio/coroutines.py`"
msgstr ""
#: ../../library/asyncio-task.rst:25
msgid ""
":term:`Coroutines <coroutine>` declared with the async/await syntax is the "
"preferred way of writing asyncio applications. For example, the following "
"snippet of code prints \"hello\", waits 1 second, and then prints \"world\"::"
msgstr ""
#: ../../library/asyncio-task.rst:30
msgid ""
">>> import asyncio\n"
"\n"
">>> async def main():\n"
"... print('hello')\n"
"... await asyncio.sleep(1)\n"
"... print('world')\n"
"\n"
">>> asyncio.run(main())\n"
"hello\n"
"world"
msgstr ""
#: ../../library/asyncio-task.rst:41
msgid ""
"Note that simply calling a coroutine will not schedule it to be executed::"
msgstr ""
#: ../../library/asyncio-task.rst:44
msgid ""
">>> main()\n"
"<coroutine object main at 0x1053bb7c8>"
msgstr ""
#: ../../library/asyncio-task.rst:47
msgid "To actually run a coroutine, asyncio provides the following mechanisms:"
msgstr ""
#: ../../library/asyncio-task.rst:49
msgid ""
"The :func:`asyncio.run` function to run the top-level entry point \"main()\" "
"function (see the above example.)"
msgstr ""
#: ../../library/asyncio-task.rst:52
msgid ""
"Awaiting on a coroutine. The following snippet of code will print \"hello\" "
"after waiting for 1 second, and then print \"world\" after waiting for "
"*another* 2 seconds::"
msgstr ""
#: ../../library/asyncio-task.rst:56
msgid ""
"import asyncio\n"
"import time\n"
"\n"
"async def say_after(delay, what):\n"
" await asyncio.sleep(delay)\n"
" print(what)\n"
"\n"
"async def main():\n"
" print(f\"started at {time.strftime('%X')}\")\n"
"\n"
" await say_after(1, 'hello')\n"
" await say_after(2, 'world')\n"
"\n"
" print(f\"finished at {time.strftime('%X')}\")\n"
"\n"
"asyncio.run(main())"
msgstr ""
#: ../../library/asyncio-task.rst:73
msgid "Expected output::"
msgstr ""
#: ../../library/asyncio-task.rst:75
msgid ""
"started at 17:13:52\n"
"hello\n"
"world\n"
"finished at 17:13:55"
msgstr ""
#: ../../library/asyncio-task.rst:80
msgid ""
"The :func:`asyncio.create_task` function to run coroutines concurrently as "
"asyncio :class:`Tasks <Task>`."
msgstr ""
#: ../../library/asyncio-task.rst:83
msgid ""
"Let's modify the above example and run two ``say_after`` coroutines "
"*concurrently*::"
msgstr ""
#: ../../library/asyncio-task.rst:86
msgid ""
"async def main():\n"
" task1 = asyncio.create_task(\n"
" say_after(1, 'hello'))\n"
"\n"
" task2 = asyncio.create_task(\n"
" say_after(2, 'world'))\n"
"\n"
" print(f\"started at {time.strftime('%X')}\")\n"
"\n"
" # Wait until both tasks are completed (should take\n"
" # around 2 seconds.)\n"
" await task1\n"
" await task2\n"
"\n"
" print(f\"finished at {time.strftime('%X')}\")"
msgstr ""
#: ../../library/asyncio-task.rst:102
msgid ""
"Note that expected output now shows that the snippet runs 1 second faster "
"than before::"
msgstr ""
#: ../../library/asyncio-task.rst:105
msgid ""
"started at 17:14:32\n"
"hello\n"
"world\n"
"finished at 17:14:34"
msgstr ""
#: ../../library/asyncio-task.rst:110
msgid ""
"The :class:`asyncio.TaskGroup` class provides a more modern alternative "
"to :func:`create_task`. Using this API, the last example becomes::"
msgstr ""
#: ../../library/asyncio-task.rst:114
msgid ""
"async def main():\n"
" async with asyncio.TaskGroup() as tg:\n"
" task1 = tg.create_task(\n"
" say_after(1, 'hello'))\n"
"\n"
" task2 = tg.create_task(\n"
" say_after(2, 'world'))\n"
"\n"
" print(f\"started at {time.strftime('%X')}\")\n"
"\n"
" # The await is implicit when the context manager exits.\n"
"\n"
" print(f\"finished at {time.strftime('%X')}\")"
msgstr ""
#: ../../library/asyncio-task.rst:128
msgid "The timing and output should be the same as for the previous version."
msgstr ""
#: ../../library/asyncio-task.rst:130
msgid ":class:`asyncio.TaskGroup`."
msgstr ""
#: ../../library/asyncio-task.rst:137
msgid "Awaitables"
msgstr ""
#: ../../library/asyncio-task.rst:139
msgid ""
"We say that an object is an **awaitable** object if it can be used in "
"an :keyword:`await` expression. Many asyncio APIs are designed to accept "
"awaitables."
msgstr ""
#: ../../library/asyncio-task.rst:143
msgid ""
"There are three main types of *awaitable* objects: **coroutines**, "
"**Tasks**, and **Futures**."
msgstr ""
#: ../../library/asyncio-task.rst:149
msgid ""
"Python coroutines are *awaitables* and therefore can be awaited from other "
"coroutines::"
msgstr ""
#: ../../library/asyncio-task.rst:152
msgid ""
"import asyncio\n"
"\n"
"async def nested():\n"
" return 42\n"
"\n"
"async def main():\n"
" # Nothing happens if we just call \"nested()\".\n"
" # A coroutine object is created but not awaited,\n"
" # so it *won't run at all*.\n"
" nested() # will raise a \"RuntimeWarning\".\n"
"\n"
" # Let's do it differently now and await it:\n"
" print(await nested()) # will print \"42\".\n"
"\n"
"asyncio.run(main())"
msgstr ""
#: ../../library/asyncio-task.rst:170
msgid ""
"In this documentation the term \"coroutine\" can be used for two closely "
"related concepts:"
msgstr ""
#: ../../library/asyncio-task.rst:173
msgid "a *coroutine function*: an :keyword:`async def` function;"
msgstr ""
#: ../../library/asyncio-task.rst:175
msgid ""
"a *coroutine object*: an object returned by calling a *coroutine function*."
msgstr ""
#: ../../library/asyncio-task.rst:180
msgid "Tasks"
msgstr ""
#: ../../library/asyncio-task.rst:181
msgid "*Tasks* are used to schedule coroutines *concurrently*."
msgstr ""
#: ../../library/asyncio-task.rst:183
msgid ""
"When a coroutine is wrapped into a *Task* with functions "
"like :func:`asyncio.create_task` the coroutine is automatically scheduled to "
"run soon::"
msgstr ""
#: ../../library/asyncio-task.rst:187
msgid ""
"import asyncio\n"
"\n"
"async def nested():\n"
" return 42\n"
"\n"
"async def main():\n"
" # Schedule nested() to run soon concurrently\n"
" # with \"main()\".\n"
" task = asyncio.create_task(nested())\n"
"\n"
" # \"task\" can now be used to cancel \"nested()\", or\n"
" # can simply be awaited to wait until it is complete:\n"
" await task\n"
"\n"
"asyncio.run(main())"
msgstr ""
#: ../../library/asyncio-task.rst:205
msgid "Futures"
msgstr ""
#: ../../library/asyncio-task.rst:206
msgid ""
"A :class:`Future` is a special **low-level** awaitable object that "
"represents an **eventual result** of an asynchronous operation."
msgstr ""
#: ../../library/asyncio-task.rst:209
msgid ""
"When a Future object is *awaited* it means that the coroutine will wait "
"until the Future is resolved in some other place."
msgstr ""
#: ../../library/asyncio-task.rst:212
msgid ""
"Future objects in asyncio are needed to allow callback-based code to be used "
"with async/await."
msgstr ""
#: ../../library/asyncio-task.rst:215
msgid ""
"Normally **there is no need** to create Future objects at the application "
"level code."
msgstr ""
#: ../../library/asyncio-task.rst:218
msgid ""
"Future objects, sometimes exposed by libraries and some asyncio APIs, can be "
"awaited::"
msgstr ""
#: ../../library/asyncio-task.rst:221
msgid ""
"async def main():\n"
" await function_that_returns_a_future_object()\n"
"\n"
" # this is also valid:\n"
" await asyncio.gather(\n"
" function_that_returns_a_future_object(),\n"
" some_python_coroutine()\n"
" )"
msgstr ""
#: ../../library/asyncio-task.rst:230
msgid ""
"A good example of a low-level function that returns a Future object "
"is :meth:`loop.run_in_executor`."
msgstr ""
#: ../../library/asyncio-task.rst:235
msgid "Creating tasks"
msgstr ""
#: ../../library/asyncio-task.rst:237
msgid "**Source code:** :source:`Lib/asyncio/tasks.py`"
msgstr ""
#: ../../library/asyncio-task.rst:243
msgid ""
"Wrap the *coro* :ref:`coroutine <coroutine>` into a :class:`Task` and "
"schedule its execution. Return the Task object."
msgstr ""
#: ../../library/asyncio-task.rst:246
msgid ""
"The full function signature is largely the same as that of the :class:`Task` "
"constructor (or factory) - all of the keyword arguments to this function are "
"passed through to that interface."
msgstr ""
#: ../../library/asyncio-task.rst:250
msgid ""
"An optional keyword-only *context* argument allows specifying a "
"custom :class:`contextvars.Context` for the *coro* to run in. The current "
"context copy is created when no *context* is provided."
msgstr ""
#: ../../library/asyncio-task.rst:254
msgid ""
"An optional keyword-only *eager_start* argument allows specifying if the "
"task should execute eagerly during the call to create_task, or be scheduled "
"later. If *eager_start* is not passed the mode set "
"by :meth:`loop.set_task_factory` will be used."
msgstr ""
#: ../../library/asyncio-task.rst:259
msgid ""
"The task is executed in the loop returned "
"by :func:`get_running_loop`, :exc:`RuntimeError` is raised if there is no "
"running loop in current thread."
msgstr ""
#: ../../library/asyncio-task.rst:265
msgid ""
":meth:`asyncio.TaskGroup.create_task` is a new alternative leveraging "
"structural concurrency; it allows for waiting for a group of related tasks "
"with strong safety guarantees."
msgstr ""
#: ../../library/asyncio-task.rst:271
msgid ""
"Save a reference to the result of this function, to avoid a task "
"disappearing mid-execution. The event loop only keeps weak references to "
"tasks. A task that isn't referenced elsewhere may get garbage collected at "
"any time, even before it's done. For reliable \"fire-and-forget\" background "
"tasks, gather them in a collection::"
msgstr ""
#: ../../library/asyncio-task.rst:278
msgid ""
"background_tasks = set()\n"
"\n"
"for i in range(10):\n"
" task = asyncio.create_task(some_coro(param=i))\n"
"\n"
" # Add task to the set. This creates a strong reference.\n"
" background_tasks.add(task)\n"
"\n"
" # To prevent keeping references to finished tasks forever,\n"
" # make each task remove its own reference from the set after\n"
" # completion:\n"
" task.add_done_callback(background_tasks.discard)"
msgstr ""
#: ../../library/asyncio-task.rst:291
msgid ""
"Note that this approach never awaits the tasks, so if a task fails, its "
"exception is never retrieved and asyncio logs a \"Task exception was never "
"retrieved\" message when the task is garbage collected. To avoid this, "
"use :class:`asyncio.TaskGroup` which keeps a strong reference to each task, "
"awaits them and propagates their exceptions::"
msgstr ""
#: ../../library/asyncio-task.rst:298
msgid ""
"async with asyncio.TaskGroup() as tg:\n"
" for i in range(10):\n"
" tg.create_task(some_coro(param=i))"
msgstr ""
#: ../../library/asyncio-task.rst:304 ../../library/asyncio-task.rst:1265
msgid "Added the *name* parameter."
msgstr ""
#: ../../library/asyncio-task.rst:307 ../../library/asyncio-task.rst:1272
msgid "Added the *context* parameter."
msgstr ""
#: ../../library/asyncio-task.rst:310
msgid "Added the *eager_start* parameter by passing on all *kwargs*."
msgstr ""
#: ../../library/asyncio-task.rst:315
msgid "Task cancellation"
msgstr ""
#: ../../library/asyncio-task.rst:317
msgid ""
"Tasks can easily and safely be cancelled. When a task is "
"cancelled, :exc:`asyncio.CancelledError` will be raised in the task at the "
"next opportunity."
msgstr ""
#: ../../library/asyncio-task.rst:321
msgid ""
"It is recommended that coroutines use ``try/finally`` blocks to robustly "
"perform clean-up logic. In case :exc:`asyncio.CancelledError` is explicitly "
"caught, it should generally be propagated when clean-up is "
"complete. :exc:`asyncio.CancelledError` directly "
"subclasses :exc:`BaseException` so most code will not need to be aware of it."
msgstr ""
#: ../../library/asyncio-task.rst:327
msgid ""
"The asyncio components that enable structured concurrency, "
"like :class:`asyncio.TaskGroup` and :func:`asyncio.timeout`, are implemented "
"using cancellation internally and might misbehave if a coroutine "
"swallows :exc:`asyncio.CancelledError`. Similarly, user code should not "
"generally call :meth:`uncancel <asyncio.Task.uncancel>`. However, in cases "
"when suppressing :exc:`asyncio.CancelledError` is truly desired, it is "
"necessary to also call ``uncancel()`` to completely remove the cancellation "
"state."
msgstr ""
#: ../../library/asyncio-task.rst:339
msgid "Task groups"
msgstr ""
#: ../../library/asyncio-task.rst:341
msgid ""
"Task groups combine a task creation API with a convenient and reliable way "
"to wait for all tasks in the group to finish."
msgstr ""
#: ../../library/asyncio-task.rst:346
msgid ""
"An :ref:`asynchronous context manager <async-context-managers>` holding a "
"group of tasks. Tasks can be added to the group using :meth:`create_task`. "
"All tasks are awaited when the context manager exits."
msgstr ""
#: ../../library/asyncio-task.rst:355
msgid ""
"Create a task in this task group. The signature matches that "
"of :func:`asyncio.create_task`. If the task group is inactive (e.g. not yet "
"entered, already finished, or in the process of shutting down), we will "
"close the given ``coro`` and raise :exc:`RuntimeError`."
msgstr ""
#: ../../library/asyncio-task.rst:363
msgid "Close the given coroutine if the task group is not active."
msgstr ""
#: ../../library/asyncio-task.rst:367
msgid "Passes on all *kwargs* to :meth:`loop.create_task`"
msgstr ""
#: ../../library/asyncio-task.rst:371
msgid ""
"Cancel the task group. This is a non-exceptional, early exit of the task "
"group's lifetime -- useful once the group's goal has been met or its "
"services no longer needed."
msgstr ""
#: ../../library/asyncio-task.rst:375
msgid ""
":meth:`~asyncio.Task.cancel` will be called on any tasks in the group that "
"aren't yet done, as well as the parent (body) of the group. The task group "
"context manager will exit *without* :exc:`asyncio.CancelledError` being "
"raised."
msgstr ""
#: ../../library/asyncio-task.rst:379
msgid ""
"If :meth:`cancel` is called before entering the task group, the group will "
"be cancelled upon entry. This is useful for patterns where one piece of "
"code passes an unused :class:`asyncio.TaskGroup` instance to another in "
"order to have the ability to cancel anything run within the group."
msgstr ""
#: ../../library/asyncio-task.rst:384
msgid ""
":meth:`cancel` is idempotent and may be called after the task group has "
"already exited."
msgstr ""
#: ../../library/asyncio-task.rst:387
msgid "Some ways to use :meth:`cancel`:"
msgstr ""
#: ../../library/asyncio-task.rst:389
msgid "call it from the task group body based on some condition or event"
msgstr ""
#: ../../library/asyncio-task.rst:390
msgid ""
"pass the task group instance to child tasks via :meth:`create_task`, "
"allowing a child task to conditionally cancel the entire group"
msgstr ""
#: ../../library/asyncio-task.rst:392
msgid ""
"pass the task group instance or bound :meth:`cancel` method to some other "
"task *before* opening the task group, allowing remote cancellation"
msgstr ""
#: ../../library/asyncio-task.rst:397 ../../library/asyncio-task.rst:565
#: ../../library/asyncio-task.rst:738 ../../library/asyncio-task.rst:799
#: ../../library/asyncio-task.rst:825 ../../library/asyncio-task.rst:862
msgid "Example::"
msgstr "Beispiel::"
#: ../../library/asyncio-task.rst:399
msgid ""
"async def main():\n"
" async with asyncio.TaskGroup() as tg:\n"
" task1 = tg.create_task(some_coro(...))\n"
" task2 = tg.create_task(another_coro(...))\n"
" print(f\"Both tasks have completed now: {task1.result()}, "
"{task2.result()}\")"
msgstr ""
#: ../../library/asyncio-task.rst:405
msgid ""
"The ``async with`` statement will wait for all tasks in the group to finish. "
"While waiting, new tasks may still be added to the group (for example, by "
"passing ``tg`` into one of the coroutines and calling ``tg.create_task()`` "
"in that coroutine). There is also opportunity to request termination of the "
"entire task group with ``tg.cancel()``, based on some condition. Once the "
"last task has finished and the ``async with`` block is exited, no new tasks "
"may be added to the group."
msgstr ""
#: ../../library/asyncio-task.rst:413
msgid ""
"The first time any of the tasks belonging to the group fails with an "
"exception other than :exc:`asyncio.CancelledError`, the remaining tasks in "
"the group are cancelled. No further tasks can then be added to the group. At "
"this point, if the body of the ``async with`` statement is still active "
"(i.e., :meth:`~object.__aexit__` hasn't been called yet), the task directly "
"containing the ``async with`` statement is also cancelled. The "
"resulting :exc:`asyncio.CancelledError` will interrupt an ``await``, but it "
"will not bubble out of the containing ``async with`` statement."
msgstr ""
#: ../../library/asyncio-task.rst:423
msgid ""
"Once all tasks have finished, if any tasks have failed with an exception "
"other than :exc:`asyncio.CancelledError`, those exceptions are combined in "
"an :exc:`ExceptionGroup` or :exc:`BaseExceptionGroup` (as appropriate; see "
"their documentation) which is then raised."
msgstr ""
#: ../../library/asyncio-task.rst:430
msgid ""
"Two base exceptions are treated specially: If any task fails "
"with :exc:`KeyboardInterrupt` or :exc:`SystemExit`, the task group still "
"cancels the remaining tasks and waits for them, but then the "
"initial :exc:`KeyboardInterrupt` or :exc:`SystemExit` is re-raised instead "
"of :exc:`ExceptionGroup` or :exc:`BaseExceptionGroup`."
msgstr ""
#: ../../library/asyncio-task.rst:436
msgid ""
"If the body of the ``async with`` statement exits with an exception "
"(so :meth:`~object.__aexit__` is called with an exception set), this is "
"treated the same as if one of the tasks failed: the remaining tasks are "
"cancelled and then waited for, and non-cancellation exceptions are grouped "
"into an exception group and raised. The exception passed "
"into :meth:`~object.__aexit__`, unless it is :exc:`asyncio.CancelledError`, "
"is also included in the exception group. The same special case is made "
"for :exc:`KeyboardInterrupt` and :exc:`SystemExit` as in the previous "
"paragraph. There is an additional special case made only for the body of the "
"``async with``: if it raises :exc:`GeneratorExit` and none of the other "
"tasks raise exceptions that would be reported, then the :exc:`GeneratorExit` "
"is reraised."
msgstr ""
#: ../../library/asyncio-task.rst:452
msgid ""
"Task groups are careful not to mix up the internal cancellation used to "
"\"wake up\" their :meth:`~object.__aexit__` with cancellation requests for "
"the task in which they are running made by other parties. In particular, "
"when one task group is syntactically nested in another, and both experience "
"an exception in one of their child tasks simultaneously, the inner task "
"group will process its exceptions, and then the outer task group will "
"receive another cancellation and process its own exceptions."
msgstr ""
#: ../../library/asyncio-task.rst:460
msgid ""
"In the case where a task group is cancelled externally and also must raise "
"an :exc:`ExceptionGroup`, it will call the parent "
"task's :meth:`~asyncio.Task.cancel` method. This ensures that "
"a :exc:`asyncio.CancelledError` will be raised at the next :keyword:`await`, "
"so the cancellation is not lost."
msgstr ""
#: ../../library/asyncio-task.rst:466
msgid ""
"Task groups preserve the cancellation count reported "
"by :meth:`asyncio.Task.cancelling`."
msgstr ""
#: ../../library/asyncio-task.rst:471
msgid ""
"Improved handling of simultaneous internal and external cancellations and "
"correct preservation of cancellation counts."
msgstr ""
#: ../../library/asyncio-task.rst:476
msgid "Addition of the special case for :exc:`GeneratorExit`."
msgstr ""
#: ../../library/asyncio-task.rst:479
msgid "Sleeping"
msgstr ""
#: ../../library/asyncio-task.rst:484
msgid "Block for *delay* seconds."
msgstr ""
#: ../../library/asyncio-task.rst:486
msgid ""
"If *result* is provided, it is returned to the caller when the coroutine "
"completes."
msgstr ""
#: ../../library/asyncio-task.rst:489
msgid ""
"``sleep()`` always suspends the current task, allowing other tasks to run."
msgstr ""
#: ../../library/asyncio-task.rst:492
msgid ""
"Setting the delay to 0 provides an optimized path to allow other tasks to "
"run. This can be used by long-running functions to avoid blocking the event "
"loop for the full duration of the function call."
msgstr ""
#: ../../library/asyncio-task.rst:498
msgid ""
"Example of coroutine displaying the current date every second for 5 seconds::"
msgstr ""
#: ../../library/asyncio-task.rst:501
msgid ""
"import asyncio\n"
"import datetime as dt\n"
"\n"
"async def display_date():\n"
" loop = asyncio.get_running_loop()\n"
" end_time = loop.time() + 5.0\n"
" while True:\n"
" print(dt.datetime.now())\n"
" if (loop.time() + 1.0) >= end_time:\n"
" break\n"
" await asyncio.sleep(1)\n"
"\n"
"asyncio.run(display_date())"
msgstr ""
#: ../../library/asyncio-task.rst:516 ../../library/asyncio-task.rst:614
#: ../../library/asyncio-task.rst:713 ../../library/asyncio-task.rst:887
#: ../../library/asyncio-task.rst:949 ../../library/asyncio-task.rst:1010
msgid "Removed the *loop* parameter."
msgstr ""
#: ../../library/asyncio-task.rst:519
msgid "Raises :exc:`ValueError` if *delay* is :data:`~math.nan`."
msgstr ""
#: ../../library/asyncio-task.rst:524
msgid "Running tasks concurrently"
msgstr ""
#: ../../library/asyncio-task.rst:528
msgid ""
"Run :ref:`awaitable objects <asyncio-awaitables>` in the *aws* sequence "
"*concurrently*."
msgstr ""
#: ../../library/asyncio-task.rst:531
msgid ""
"If any awaitable in *aws* is a coroutine, it is automatically scheduled as a "
"Task."
msgstr ""
#: ../../library/asyncio-task.rst:534
msgid ""
"If all awaitables are completed successfully, the result is an aggregate "
"list of returned values. The order of result values corresponds to the "
"order of awaitables in *aws*."
msgstr ""
#: ../../library/asyncio-task.rst:538
msgid ""
"If *return_exceptions* is ``False`` (default), the first raised exception is "
"immediately propagated to the task that awaits on ``gather()``. Other "
"awaitables in the *aws* sequence **won't be cancelled** and will continue to "
"run."
msgstr ""
#: ../../library/asyncio-task.rst:543
msgid ""
"If *return_exceptions* is ``True``, exceptions are treated the same as "
"successful results, and aggregated in the result list."
msgstr ""
#: ../../library/asyncio-task.rst:546
msgid ""
"If ``gather()`` is *cancelled*, all submitted awaitables (that have not "
"completed yet) are also *cancelled*."
msgstr ""
#: ../../library/asyncio-task.rst:549
msgid ""
"If any Task or Future from the *aws* sequence is *cancelled*, it is treated "
"as if it raised :exc:`CancelledError` -- the ``gather()`` call is **not** "
"cancelled in this case. This is to prevent the cancellation of one "
"submitted Task/Future to cause other Tasks/Futures to be cancelled."
msgstr ""
#: ../../library/asyncio-task.rst:556
msgid ""
"A new alternative to create and run tasks concurrently and wait for their "
"completion is :class:`asyncio.TaskGroup`. *TaskGroup* provides stronger "
"safety guarantees than *gather* for scheduling a nesting of subtasks: if a "
"task (or a subtask, a task scheduled by a task) raises an exception, "
"*TaskGroup* will, while *gather* will not, cancel the remaining scheduled "
"tasks."
msgstr ""
#: ../../library/asyncio-task.rst:567
msgid ""
"import asyncio\n"
"\n"
"async def factorial(name, number):\n"
" f = 1\n"
" for i in range(2, number + 1):\n"
" print(f\"Task {name}: Compute factorial({number}), currently i={i}..."
"\")\n"
" await asyncio.sleep(1)\n"
" f *= i\n"
" print(f\"Task {name}: factorial({number}) = {f}\")\n"
" return f\n"
"\n"
"async def main():\n"
" # Schedule three calls *concurrently*:\n"
" L = await asyncio.gather(\n"
" factorial(\"A\", 2),\n"
" factorial(\"B\", 3),\n"
" factorial(\"C\", 4),\n"
" )\n"
" print(L)\n"
"\n"
"asyncio.run(main())\n"
"\n"
"# Expected output:\n"
"#\n"
"# Task A: Compute factorial(2), currently i=2...\n"
"# Task B: Compute factorial(3), currently i=2...\n"
"# Task C: Compute factorial(4), currently i=2...\n"
"# Task A: factorial(2) = 2\n"
"# Task B: Compute factorial(3), currently i=3...\n"
"# Task C: Compute factorial(4), currently i=3...\n"
"# Task B: factorial(3) = 6\n"
"# Task C: Compute factorial(4), currently i=4...\n"
"# Task C: factorial(4) = 24\n"
"# [2, 6, 24]"
msgstr ""
#: ../../library/asyncio-task.rst:603
msgid ""
"If *return_exceptions* is false, cancelling gather() after it has been "
"marked done won't cancel any submitted awaitables. For instance, gather can "
"be marked done after propagating an exception to the caller, therefore, "
"calling ``gather.cancel()`` after catching an exception (raised by one of "
"the awaitables) from gather won't cancel any other awaitables."
msgstr ""
#: ../../library/asyncio-task.rst:610
msgid ""
"If the *gather* itself is cancelled, the cancellation is propagated "
"regardless of *return_exceptions*."
msgstr ""
#: ../../library/asyncio-task.rst:617
msgid ""
"Deprecation warning is emitted if no positional arguments are provided or "
"not all positional arguments are Future-like objects and there is no running "
"event loop."
msgstr ""
#: ../../library/asyncio-task.rst:626
msgid "Eager task factory"
msgstr ""
#: ../../library/asyncio-task.rst:630
msgid "A task factory for eager task execution."
msgstr ""
#: ../../library/asyncio-task.rst:632
msgid ""
"When using this factory "
"(via :meth:`loop.set_task_factory(asyncio.eager_task_factory) "
"<loop.set_task_factory>`), coroutines begin execution synchronously "
"during :class:`Task` construction. Tasks are only scheduled on the event "
"loop if they block. This can be a performance improvement as the overhead of "
"loop scheduling is avoided for coroutines that complete synchronously."
msgstr ""
#: ../../library/asyncio-task.rst:638
msgid ""
"A common example where this is beneficial is coroutines which employ caching "
"or memoization to avoid actual I/O when possible."
msgstr ""
#: ../../library/asyncio-task.rst:643
msgid ""
"Immediate execution of the coroutine is a semantic change. If the coroutine "
"returns or raises, the task is never scheduled to the event loop. If the "
"coroutine execution blocks, the task is scheduled to the event loop. This "
"change may introduce behavior changes to existing applications. For example, "
"the application's task execution order is likely to change."
msgstr ""
#: ../../library/asyncio-task.rst:654
msgid ""
"Create an eager task factory, similar to :func:`eager_task_factory`, using "
"the provided *custom_task_constructor* when creating a new task instead of "
"the default :class:`Task`."
msgstr ""
#: ../../library/asyncio-task.rst:658
msgid ""
"*custom_task_constructor* must be a *callable* with the signature matching "
"the signature of :class:`Task.__init__ <Task>`. The callable must return "
"a :class:`asyncio.Task`-compatible object."
msgstr ""
#: ../../library/asyncio-task.rst:662
msgid ""
"This function returns a *callable* intended to be used as a task factory of "
"an event loop via :meth:`loop.set_task_factory(factory) "
"<loop.set_task_factory>`)."
msgstr ""
#: ../../library/asyncio-task.rst:669
msgid "Shielding from cancellation"
msgstr ""
#: ../../library/asyncio-task.rst:673
msgid ""
"Protect an :ref:`awaitable object <asyncio-awaitables>` from "
"being :meth:`cancelled <Task.cancel>`."
msgstr ""
#: ../../library/asyncio-task.rst:676
msgid "If *aw* is a coroutine it is automatically scheduled as a Task."
msgstr ""
#: ../../library/asyncio-task.rst:678
msgid "The statement::"
msgstr ""
#: ../../library/asyncio-task.rst:680
msgid ""
"task = asyncio.create_task(something())\n"
"res = await shield(task)"
msgstr ""
#: ../../library/asyncio-task.rst:683
msgid "is equivalent to::"
msgstr ""
#: ../../library/asyncio-task.rst:685
msgid "res = await something()"
msgstr ""
#: ../../library/asyncio-task.rst:687
msgid ""
"*except* that if the coroutine containing it is cancelled, the Task running "
"in ``something()`` is not cancelled. From the point of view of "
"``something()``, the cancellation did not happen. Although its caller is "
"still cancelled, so the \"await\" expression still raises "
"a :exc:`CancelledError`."
msgstr ""
#: ../../library/asyncio-task.rst:693
msgid ""
"If ``something()`` is cancelled by other means (i.e. from within itself) "
"that would also cancel ``shield()``."
msgstr ""
#: ../../library/asyncio-task.rst:696
msgid ""
"If it is desired to completely ignore cancellation (not recommended) the "
"``shield()`` function should be combined with a try/except clause, as "
"follows::"
msgstr ""
#: ../../library/asyncio-task.rst:700
msgid ""
"task = asyncio.create_task(something())\n"
"try:\n"
" res = await shield(task)\n"
"except CancelledError:\n"
" res = None"
msgstr ""
#: ../../library/asyncio-task.rst:708
msgid ""
"Save a reference to tasks passed to this function, to avoid a task "
"disappearing mid-execution. The event loop only keeps weak references to "
"tasks. A task that isn't referenced elsewhere may get garbage collected at "
"any time, even before it's done."
msgstr ""
#: ../../library/asyncio-task.rst:716
msgid ""
"Deprecation warning is emitted if *aw* is not Future-like object and there "
"is no running event loop."
msgstr ""
#: ../../library/asyncio-task.rst:722
msgid "Timeouts"
msgstr ""
#: ../../library/asyncio-task.rst:726
msgid ""
"Return an :ref:`asynchronous context manager <async-context-managers>` that "
"can be used to limit the amount of time spent waiting on something."
msgstr ""
#: ../../library/asyncio-task.rst:730
msgid ""
"*delay* can either be ``None``, or a float/int number of seconds to wait. If "
"*delay* is ``None``, no time limit will be applied; this can be useful if "
"the delay is unknown when the context manager is created."
msgstr ""
#: ../../library/asyncio-task.rst:735
msgid ""
"In either case, the context manager can be rescheduled after creation "
"using :meth:`Timeout.reschedule`."
msgstr ""
#: ../../library/asyncio-task.rst:740