Repository navigation
Expand file tree
/
Copy pathcompound_stmts.po
More file actions
1460 lines (1166 loc) · 46.7 KB
/
Copy pathcompound_stmts.po
File metadata and controls
1460 lines (1166 loc) · 46.7 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) 2001-2026, 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
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: Python 3.10\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2026-09-30 01:59+0000\n"
"PO-Revision-Date: 2025-09-22 15:58+0000\n"
"Last-Translator: python-doc bot, 2025\n"
"Language-Team: Polish (https://app.transifex.com/python-doc/teams/5390/pl/)\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Language: pl\n"
"Plural-Forms: nplurals=4; plural=(n==1 ? 0 : (n%10>=2 && n%10<=4) && "
"(n%100<12 || n%100>14) ? 1 : n!=1 && (n%10>=0 && n%10<=1) || (n%10>=5 && "
"n%10<=9) || (n%100>=12 && n%100<=14) ? 2 : 3);\n"
msgid "Compound statements"
msgstr ""
msgid ""
"Compound statements contain (groups of) other statements; they affect or "
"control the execution of those other statements in some way. In general, "
"compound statements span multiple lines, although in simple incarnations a "
"whole compound statement may be contained in one line."
msgstr ""
msgid ""
"The :keyword:`if`, :keyword:`while` and :keyword:`for` statements implement "
"traditional control flow constructs. :keyword:`try` specifies exception "
"handlers and/or cleanup code for a group of statements, while the :keyword:"
"`with` statement allows the execution of initialization and finalization "
"code around a block of code. Function and class definitions are also "
"syntactically compound statements."
msgstr ""
msgid ""
"A compound statement consists of one or more 'clauses.' A clause consists "
"of a header and a 'suite.' The clause headers of a particular compound "
"statement are all at the same indentation level. Each clause header begins "
"with a uniquely identifying keyword and ends with a colon. A suite is a "
"group of statements controlled by a clause. A suite can be one or more "
"semicolon-separated simple statements on the same line as the header, "
"following the header's colon, or it can be one or more indented statements "
"on subsequent lines. Only the latter form of a suite can contain nested "
"compound statements; the following is illegal, mostly because it wouldn't be "
"clear to which :keyword:`if` clause a following :keyword:`else` clause would "
"belong::"
msgstr ""
msgid ""
"Also note that the semicolon binds tighter than the colon in this context, "
"so that in the following example, either all or none of the :func:`print` "
"calls are executed::"
msgstr ""
msgid "Summarizing:"
msgstr ""
msgid ""
"Note that statements always end in a ``NEWLINE`` possibly followed by a "
"``DEDENT``. Also note that optional continuation clauses always begin with "
"a keyword that cannot start a statement, thus there are no ambiguities (the "
"'dangling :keyword:`else`' problem is solved in Python by requiring nested :"
"keyword:`if` statements to be indented)."
msgstr ""
msgid ""
"The formatting of the grammar rules in the following sections places each "
"clause on a separate line for clarity."
msgstr ""
msgid "The :keyword:`!if` statement"
msgstr ""
msgid "The :keyword:`if` statement is used for conditional execution:"
msgstr ""
msgid ""
"It selects exactly one of the suites by evaluating the expressions one by "
"one until one is found to be true (see section :ref:`booleans` for the "
"definition of true and false); then that suite is executed (and no other "
"part of the :keyword:`if` statement is executed or evaluated). If all "
"expressions are false, the suite of the :keyword:`else` clause, if present, "
"is executed."
msgstr ""
msgid "The :keyword:`!while` statement"
msgstr ""
msgid ""
"The :keyword:`while` statement is used for repeated execution as long as an "
"expression is true:"
msgstr ""
msgid ""
"This repeatedly tests the expression and, if it is true, executes the first "
"suite; if the expression is false (which may be the first time it is tested) "
"the suite of the :keyword:`!else` clause, if present, is executed and the "
"loop terminates."
msgstr ""
msgid ""
"A :keyword:`break` statement executed in the first suite terminates the loop "
"without executing the :keyword:`!else` clause's suite. A :keyword:"
"`continue` statement executed in the first suite skips the rest of the suite "
"and goes back to testing the expression."
msgstr ""
msgid "The :keyword:`!for` statement"
msgstr ""
msgid ""
"The :keyword:`for` statement is used to iterate over the elements of a "
"sequence (such as a string, tuple or list) or other iterable object:"
msgstr ""
msgid ""
"The expression list is evaluated once; it should yield an iterable object. "
"An iterator is created for the result of the ``expression_list``. The suite "
"is then executed once for each item provided by the iterator, in the order "
"returned by the iterator. Each item in turn is assigned to the target list "
"using the standard rules for assignments (see :ref:`assignment`), and then "
"the suite is executed. When the items are exhausted (which is immediately "
"when the sequence is empty or an iterator raises a :exc:`StopIteration` "
"exception), the suite in the :keyword:`!else` clause, if present, is "
"executed, and the loop terminates."
msgstr ""
msgid ""
"A :keyword:`break` statement executed in the first suite terminates the loop "
"without executing the :keyword:`!else` clause's suite. A :keyword:"
"`continue` statement executed in the first suite skips the rest of the suite "
"and continues with the next item, or with the :keyword:`!else` clause if "
"there is no next item."
msgstr ""
msgid ""
"The for-loop makes assignments to the variables in the target list. This "
"overwrites all previous assignments to those variables including those made "
"in the suite of the for-loop::"
msgstr ""
msgid ""
"Names in the target list are not deleted when the loop is finished, but if "
"the sequence is empty, they will not have been assigned to at all by the "
"loop. Hint: the built-in type :func:`range` represents immutable arithmetic "
"sequences of integers. For instance, iterating ``range(3)`` successively "
"yields 0, 1, and then 2."
msgstr ""
msgid "The :keyword:`!try` statement"
msgstr ""
msgid ""
"The :keyword:`try` statement specifies exception handlers and/or cleanup "
"code for a group of statements:"
msgstr ""
msgid ""
"The :keyword:`except` clause(s) specify one or more exception handlers. When "
"no exception occurs in the :keyword:`try` clause, no exception handler is "
"executed. When an exception occurs in the :keyword:`!try` suite, a search "
"for an exception handler is started. This search inspects the except "
"clauses in turn until one is found that matches the exception. An "
"expression-less except clause, if present, must be last; it matches any "
"exception. For an except clause with an expression, that expression is "
"evaluated, and the clause matches the exception if the resulting object is "
"\"compatible\" with the exception. An object is compatible with an "
"exception if the object is the class or a :term:`non-virtual base class "
"<abstract base class>` of the exception object, or a tuple containing an "
"item that is the class or a non-virtual base class of the exception object."
msgstr ""
msgid ""
"If no except clause matches the exception, the search for an exception "
"handler continues in the surrounding code and on the invocation stack. [#]_"
msgstr ""
msgid ""
"If the evaluation of an expression in the header of an except clause raises "
"an exception, the original search for a handler is canceled and a search "
"starts for the new exception in the surrounding code and on the call stack "
"(it is treated as if the entire :keyword:`try` statement raised the "
"exception)."
msgstr ""
msgid ""
"When a matching except clause is found, the exception is assigned to the "
"target specified after the :keyword:`!as` keyword in that except clause, if "
"present, and the except clause's suite is executed. All except clauses must "
"have an executable block. When the end of this block is reached, execution "
"continues normally after the entire try statement. (This means that if two "
"nested handlers exist for the same exception, and the exception occurs in "
"the try clause of the inner handler, the outer handler will not handle the "
"exception.)"
msgstr ""
msgid ""
"When an exception has been assigned using ``as target``, it is cleared at "
"the end of the except clause. This is as if ::"
msgstr ""
msgid "was translated to ::"
msgstr ""
msgid ""
"This means the exception must be assigned to a different name to be able to "
"refer to it after the except clause. Exceptions are cleared because with "
"the traceback attached to them, they form a reference cycle with the stack "
"frame, keeping all locals in that frame alive until the next garbage "
"collection occurs."
msgstr ""
msgid ""
"Before an except clause's suite is executed, details about the exception are "
"stored in the :mod:`sys` module and can be accessed via :func:`sys."
"exc_info`. :func:`sys.exc_info` returns a 3-tuple consisting of the "
"exception class, the exception instance and a traceback object (see section :"
"ref:`types`) identifying the point in the program where the exception "
"occurred. The details about the exception accessed via :func:`sys.exc_info` "
"are restored to their previous values when leaving an exception handler::"
msgstr ""
msgid ""
"The optional :keyword:`!else` clause is executed if the control flow leaves "
"the :keyword:`try` suite, no exception was raised, and no :keyword:"
"`return`, :keyword:`continue`, or :keyword:`break` statement was executed. "
"Exceptions in the :keyword:`!else` clause are not handled by the preceding :"
"keyword:`except` clauses."
msgstr ""
msgid ""
"If :keyword:`finally` is present, it specifies a 'cleanup' handler. The :"
"keyword:`try` clause is executed, including any :keyword:`except` and :"
"keyword:`!else` clauses. If an exception occurs in any of the clauses and "
"is not handled, the exception is temporarily saved. The :keyword:`!finally` "
"clause is executed. If there is a saved exception it is re-raised at the "
"end of the :keyword:`!finally` clause. If the :keyword:`!finally` clause "
"raises another exception, the saved exception is set as the context of the "
"new exception. If the :keyword:`!finally` clause executes a :keyword:"
"`return`, :keyword:`break` or :keyword:`continue` statement, the saved "
"exception is discarded::"
msgstr ""
msgid ""
"The exception information is not available to the program during execution "
"of the :keyword:`finally` clause."
msgstr ""
msgid ""
"When a :keyword:`return`, :keyword:`break` or :keyword:`continue` statement "
"is executed in the :keyword:`try` suite of a :keyword:`!try`...\\ :keyword:`!"
"finally` statement, the :keyword:`finally` clause is also executed 'on the "
"way out.'"
msgstr ""
msgid ""
"The return value of a function is determined by the last :keyword:`return` "
"statement executed. Since the :keyword:`finally` clause always executes, a :"
"keyword:`!return` statement executed in the :keyword:`!finally` clause will "
"always be the last one executed::"
msgstr ""
msgid ""
"Additional information on exceptions can be found in section :ref:"
"`exceptions`, and information on using the :keyword:`raise` statement to "
"generate exceptions may be found in section :ref:`raise`."
msgstr ""
msgid ""
"Prior to Python 3.8, a :keyword:`continue` statement was illegal in the :"
"keyword:`finally` clause due to a problem with the implementation."
msgstr ""
msgid "The :keyword:`!with` statement"
msgstr ""
msgid ""
"The :keyword:`with` statement is used to wrap the execution of a block with "
"methods defined by a context manager (see section :ref:`context-managers`). "
"This allows common :keyword:`try`...\\ :keyword:`except`...\\ :keyword:"
"`finally` usage patterns to be encapsulated for convenient reuse."
msgstr ""
msgid ""
"The execution of the :keyword:`with` statement with one \"item\" proceeds as "
"follows:"
msgstr ""
msgid ""
"The context expression (the expression given in the :token:`~python-grammar:"
"with_item`) is evaluated to obtain a context manager."
msgstr ""
msgid "The context manager's :meth:`__enter__` is loaded for later use."
msgstr ""
msgid "The context manager's :meth:`__exit__` is loaded for later use."
msgstr ""
msgid "The context manager's :meth:`__enter__` method is invoked."
msgstr ""
msgid ""
"If a target was included in the :keyword:`with` statement, the return value "
"from :meth:`__enter__` is assigned to it."
msgstr ""
msgid ""
"The :keyword:`with` statement guarantees that if the :meth:`__enter__` "
"method returns without an error, then :meth:`__exit__` will always be "
"called. Thus, if an error occurs during the assignment to the target list, "
"it will be treated the same as an error occurring within the suite would be. "
"See step 7 below."
msgstr ""
msgid "The suite is executed."
msgstr ""
msgid ""
"The context manager's :meth:`__exit__` method is invoked. If an exception "
"caused the suite to be exited, its type, value, and traceback are passed as "
"arguments to :meth:`__exit__`. Otherwise, three :const:`None` arguments are "
"supplied."
msgstr ""
msgid ""
"If the suite was exited due to an exception, and the return value from the :"
"meth:`__exit__` method was false, the exception is reraised. If the return "
"value was true, the exception is suppressed, and execution continues with "
"the statement following the :keyword:`with` statement."
msgstr ""
msgid ""
"If the suite was exited for any reason other than an exception, the return "
"value from :meth:`__exit__` is ignored, and execution proceeds at the normal "
"location for the kind of exit that was taken."
msgstr ""
msgid "The following code::"
msgstr ""
msgid "is semantically equivalent to::"
msgstr ""
msgid ""
"With more than one item, the context managers are processed as if multiple :"
"keyword:`with` statements were nested::"
msgstr ""
msgid ""
"You can also write multi-item context managers in multiple lines if the "
"items are surrounded by parentheses. For example::"
msgstr ""
msgid "Support for multiple context expressions."
msgstr ""
msgid ""
"Support for using grouping parentheses to break the statement in multiple "
"lines."
msgstr ""
msgid ":pep:`343` - The \"with\" statement"
msgstr ""
msgid ""
"The specification, background, and examples for the Python :keyword:`with` "
"statement."
msgstr ""
msgid "The :keyword:`!match` statement"
msgstr ""
msgid "The match statement is used for pattern matching. Syntax:"
msgstr ""
msgid ""
"This section uses single quotes to denote :ref:`soft keywords <soft-"
"keywords>`."
msgstr ""
msgid ""
"Pattern matching takes a pattern as input (following ``case``) and a subject "
"value (following ``match``). The pattern (which may contain subpatterns) is "
"matched against the subject value. The outcomes are:"
msgstr ""
msgid "A match success or failure (also termed a pattern success or failure)."
msgstr ""
msgid ""
"Possible binding of matched values to a name. The prerequisites for this "
"are further discussed below."
msgstr ""
msgid ""
"The ``match`` and ``case`` keywords are :ref:`soft keywords <soft-keywords>`."
msgstr ""
msgid ":pep:`634` -- Structural Pattern Matching: Specification"
msgstr ""
msgid ":pep:`636` -- Structural Pattern Matching: Tutorial"
msgstr ""
msgid "Overview"
msgstr "Skorowidz"
msgid "Here's an overview of the logical flow of a match statement:"
msgstr ""
msgid ""
"The subject expression ``subject_expr`` is evaluated and a resulting subject "
"value obtained. If the subject expression contains a comma, a tuple is "
"constructed using :ref:`the standard rules <typesseq-tuple>`."
msgstr ""
msgid ""
"Each pattern in a ``case_block`` is attempted to match with the subject "
"value. The specific rules for success or failure are described below. The "
"match attempt can also bind some or all of the standalone names within the "
"pattern. The precise pattern binding rules vary per pattern type and are "
"specified below. **Name bindings made during a successful pattern match "
"outlive the executed block and can be used after the match statement**."
msgstr ""
msgid ""
"During failed pattern matches, some subpatterns may succeed. Do not rely on "
"bindings being made for a failed match. Conversely, do not rely on "
"variables remaining unchanged after a failed match. The exact behavior is "
"dependent on implementation and may vary. This is an intentional decision "
"made to allow different implementations to add optimizations."
msgstr ""
msgid ""
"If the pattern succeeds, the corresponding guard (if present) is evaluated. "
"In this case all name bindings are guaranteed to have happened."
msgstr ""
msgid ""
"If the guard evaluates as true or is missing, the ``block`` inside "
"``case_block`` is executed."
msgstr ""
msgid "Otherwise, the next ``case_block`` is attempted as described above."
msgstr ""
msgid "If there are no further case blocks, the match statement is completed."
msgstr ""
msgid ""
"Users should generally never rely on a pattern being evaluated. Depending "
"on implementation, the interpreter may cache values or use other "
"optimizations which skip repeated evaluations."
msgstr ""
msgid "A sample match statement::"
msgstr ""
msgid ""
"In this case, ``if flag`` is a guard. Read more about that in the next "
"section."
msgstr ""
msgid "Guards"
msgstr ""
msgid ""
"A ``guard`` (which is part of the ``case``) must succeed for code inside the "
"``case`` block to execute. It takes the form: :keyword:`if` followed by an "
"expression."
msgstr ""
msgid "The logical flow of a ``case`` block with a ``guard`` follows:"
msgstr ""
msgid ""
"Check that the pattern in the ``case`` block succeeded. If the pattern "
"failed, the ``guard`` is not evaluated and the next ``case`` block is "
"checked."
msgstr ""
msgid "If the pattern succeeded, evaluate the ``guard``."
msgstr ""
msgid ""
"If the ``guard`` condition evaluates as true, the case block is selected."
msgstr ""
msgid ""
"If the ``guard`` condition evaluates as false, the case block is not "
"selected."
msgstr ""
msgid ""
"If the ``guard`` raises an exception during evaluation, the exception "
"bubbles up."
msgstr ""
msgid ""
"Guards are allowed to have side effects as they are expressions. Guard "
"evaluation must proceed from the first to the last case block, one at a "
"time, skipping case blocks whose pattern(s) don't all succeed. (I.e., guard "
"evaluation must happen in order.) Guard evaluation must stop once a case "
"block is selected."
msgstr ""
msgid "Irrefutable Case Blocks"
msgstr ""
msgid ""
"An irrefutable case block is a match-all case block. A match statement may "
"have at most one irrefutable case block, and it must be last."
msgstr ""
msgid ""
"A case block is considered irrefutable if it has no guard and its pattern is "
"irrefutable. A pattern is considered irrefutable if we can prove from its "
"syntax alone that it will always succeed. Only the following patterns are "
"irrefutable:"
msgstr ""
msgid ":ref:`as-patterns` whose left-hand side is irrefutable"
msgstr ""
msgid ":ref:`or-patterns` containing at least one irrefutable pattern"
msgstr ""
msgid ":ref:`capture-patterns`"
msgstr ":ref:`capture-patterns`"
msgid ":ref:`wildcard-patterns`"
msgstr ":ref:`wildcard-patterns`"
msgid "parenthesized irrefutable patterns"
msgstr ""
msgid "Patterns"
msgstr ""
msgid "This section uses grammar notations beyond standard EBNF:"
msgstr ""
msgid "the notation ``SEP.RULE+`` is shorthand for ``RULE (SEP RULE)*``"
msgstr ""
msgid "the notation ``!RULE`` is shorthand for a negative lookahead assertion"
msgstr ""
msgid "The top-level syntax for ``patterns`` is:"
msgstr ""
msgid ""
"The descriptions below will include a description \"in simple terms\" of "
"what a pattern does for illustration purposes (credits to Raymond Hettinger "
"for a document that inspired most of the descriptions). Note that these "
"descriptions are purely for illustration purposes and **may not** reflect "
"the underlying implementation. Furthermore, they do not cover all valid "
"forms."
msgstr ""
msgid "OR Patterns"
msgstr ""
msgid ""
"An OR pattern is two or more patterns separated by vertical bars ``|``. "
"Syntax:"
msgstr ""
msgid ""
"Only the final subpattern may be :ref:`irrefutable <irrefutable_case>`, and "
"each subpattern must bind the same set of names to avoid ambiguity."
msgstr ""
msgid ""
"An OR pattern matches each of its subpatterns in turn to the subject value, "
"until one succeeds. The OR pattern is then considered successful. "
"Otherwise, if none of the subpatterns succeed, the OR pattern fails."
msgstr ""
msgid ""
"In simple terms, ``P1 | P2 | ...`` will try to match ``P1``, if it fails it "
"will try to match ``P2``, succeeding immediately if any succeeds, failing "
"otherwise."
msgstr ""
msgid "AS Patterns"
msgstr ""
msgid ""
"An AS pattern matches an OR pattern on the left of the :keyword:`as` keyword "
"against a subject. Syntax:"
msgstr ""
msgid ""
"If the OR pattern fails, the AS pattern fails. Otherwise, the AS pattern "
"binds the subject to the name on the right of the as keyword and succeeds. "
"``capture_pattern`` cannot be a ``_``."
msgstr ""
msgid ""
"In simple terms ``P as NAME`` will match with ``P``, and on success it will "
"set ``NAME = <subject>``."
msgstr ""
msgid "Literal Patterns"
msgstr ""
msgid ""
"A literal pattern corresponds to most :ref:`literals <literals>` in Python. "
"Syntax:"
msgstr ""
msgid ""
"The rule ``strings`` and the token ``NUMBER`` are defined in the :doc:"
"`standard Python grammar <./grammar>`. Triple-quoted strings are "
"supported. Raw strings and byte strings are supported. :ref:`f-strings` "
"are not supported."
msgstr ""
msgid ""
"The forms ``signed_number '+' NUMBER`` and ``signed_number '-' NUMBER`` are "
"for expressing :ref:`complex numbers <imaginary>`; they require a real "
"number on the left and an imaginary number on the right. E.g. ``3 + 4j``."
msgstr ""
msgid ""
"In simple terms, ``LITERAL`` will succeed only if ``<subject> == LITERAL``. "
"For the singletons ``None``, ``True`` and ``False``, the :keyword:`is` "
"operator is used."
msgstr ""
msgid "Capture Patterns"
msgstr ""
msgid "A capture pattern binds the subject value to a name. Syntax:"
msgstr ""
msgid ""
"A single underscore ``_`` is not a capture pattern (this is what ``!'_'`` "
"expresses). It is instead treated as a :token:`~python-grammar:"
"wildcard_pattern`."
msgstr ""
msgid ""
"In a given pattern, a given name can only be bound once. E.g. ``case x, "
"x: ...`` is invalid while ``case [x] | x: ...`` is allowed."
msgstr ""
msgid ""
"Capture patterns always succeed. The binding follows scoping rules "
"established by the assignment expression operator in :pep:`572`; the name "
"becomes a local variable in the closest containing function scope unless "
"there's an applicable :keyword:`global` or :keyword:`nonlocal` statement."
msgstr ""
msgid ""
"In simple terms ``NAME`` will always succeed and it will set ``NAME = "
"<subject>``."
msgstr ""
msgid "Wildcard Patterns"
msgstr ""
msgid ""
"A wildcard pattern always succeeds (matches anything) and binds no name. "
"Syntax:"
msgstr ""
msgid ""
"``_`` is a :ref:`soft keyword <soft-keywords>` within any pattern, but only "
"within patterns. It is an identifier, as usual, even within ``match`` "
"subject expressions, ``guard``\\ s, and ``case`` blocks."
msgstr ""
msgid "In simple terms, ``_`` will always succeed."
msgstr ""
msgid "Value Patterns"
msgstr ""
msgid "A value pattern represents a named value in Python. Syntax:"
msgstr ""
msgid ""
"The dotted name in the pattern is looked up using standard Python :ref:`name "
"resolution rules <resolve_names>`. The pattern succeeds if the value found "
"compares equal to the subject value (using the ``==`` equality operator)."
msgstr ""
msgid ""
"In simple terms ``NAME1.NAME2`` will succeed only if ``<subject> == NAME1."
"NAME2``"
msgstr ""
msgid ""
"If the same value occurs multiple times in the same match statement, the "
"interpreter may cache the first value found and reuse it rather than repeat "
"the same lookup. This cache is strictly tied to a given execution of a "
"given match statement."
msgstr ""
msgid "Group Patterns"
msgstr ""
msgid ""
"A group pattern allows users to add parentheses around patterns to emphasize "
"the intended grouping. Otherwise, it has no additional syntax. Syntax:"
msgstr ""
msgid "In simple terms ``(P)`` has the same effect as ``P``."
msgstr ""
msgid "Sequence Patterns"
msgstr ""
msgid ""
"A sequence pattern contains several subpatterns to be matched against "
"sequence elements. The syntax is similar to the unpacking of a list or tuple."
msgstr ""
msgid ""
"There is no difference if parentheses or square brackets are used for "
"sequence patterns (i.e. ``(...)`` vs ``[...]`` )."
msgstr ""
msgid ""
"A single pattern enclosed in parentheses without a trailing comma (e.g. ``(3 "
"| 4)``) is a :ref:`group pattern <group-patterns>`. While a single pattern "
"enclosed in square brackets (e.g. ``[3 | 4]``) is still a sequence pattern."
msgstr ""
msgid ""
"At most one star subpattern may be in a sequence pattern. The star "
"subpattern may occur in any position. If no star subpattern is present, the "
"sequence pattern is a fixed-length sequence pattern; otherwise it is a "
"variable-length sequence pattern."
msgstr ""
msgid ""
"The following is the logical flow for matching a sequence pattern against a "
"subject value:"
msgstr ""
msgid ""
"If the subject value is not a sequence [#]_, the sequence pattern fails."
msgstr ""
msgid ""
"If the subject value is an instance of ``str``, ``bytes`` or ``bytearray`` "
"the sequence pattern fails."
msgstr ""
msgid ""
"The subsequent steps depend on whether the sequence pattern is fixed or "
"variable-length."
msgstr ""
msgid "If the sequence pattern is fixed-length:"
msgstr ""
msgid ""
"If the length of the subject sequence is not equal to the number of "
"subpatterns, the sequence pattern fails"
msgstr ""
msgid ""
"Subpatterns in the sequence pattern are matched to their corresponding items "
"in the subject sequence from left to right. Matching stops as soon as a "
"subpattern fails. If all subpatterns succeed in matching their "
"corresponding item, the sequence pattern succeeds."
msgstr ""
msgid "Otherwise, if the sequence pattern is variable-length:"
msgstr ""
msgid ""
"If the length of the subject sequence is less than the number of non-star "
"subpatterns, the sequence pattern fails."
msgstr ""
msgid ""
"The leading non-star subpatterns are matched to their corresponding items as "
"for fixed-length sequences."
msgstr ""
msgid ""
"If the previous step succeeds, the star subpattern matches a list formed of "
"the remaining subject items, excluding the remaining items corresponding to "
"non-star subpatterns following the star subpattern."
msgstr ""
msgid ""
"Remaining non-star subpatterns are matched to their corresponding subject "
"items, as for a fixed-length sequence."
msgstr ""
msgid ""
"The length of the subject sequence is obtained via :func:`len` (i.e. via "
"the :meth:`__len__` protocol). This length may be cached by the interpreter "
"in a similar manner as :ref:`value patterns <value-patterns>`."
msgstr ""
msgid ""
"In simple terms ``[P1, P2, P3,`` ... ``, P<N>]`` matches only if all the "
"following happens:"
msgstr ""
msgid "check ``<subject>`` is a sequence"
msgstr ""
msgid "``len(subject) == <N>``"
msgstr "``len(subject) == <N>``"
msgid ""
"``P1`` matches ``<subject>[0]`` (note that this match can also bind names)"
msgstr ""
msgid ""
"``P2`` matches ``<subject>[1]`` (note that this match can also bind names)"
msgstr ""
msgid "... and so on for the corresponding pattern/element."
msgstr ""
msgid "Mapping Patterns"
msgstr ""
msgid ""
"A mapping pattern contains one or more key-value patterns. The syntax is "
"similar to the construction of a dictionary. Syntax:"
msgstr ""
msgid ""
"At most one double star pattern may be in a mapping pattern. The double "
"star pattern must be the last subpattern in the mapping pattern."
msgstr ""
msgid ""
"Duplicate keys in mapping patterns are disallowed. Duplicate literal keys "
"will raise a :exc:`SyntaxError`. Two keys that otherwise have the same value "
"will raise a :exc:`ValueError` at runtime."
msgstr ""
msgid ""
"The following is the logical flow for matching a mapping pattern against a "
"subject value:"
msgstr ""
msgid "If the subject value is not a mapping [#]_,the mapping pattern fails."
msgstr ""
msgid ""
"If every key given in the mapping pattern is present in the subject mapping, "
"and the pattern for each key matches the corresponding item of the subject "
"mapping, the mapping pattern succeeds."
msgstr ""
msgid ""
"If duplicate keys are detected in the mapping pattern, the pattern is "
"considered invalid. A :exc:`SyntaxError` is raised for duplicate literal "
"values; or a :exc:`ValueError` for named keys of the same value."
msgstr ""
msgid ""
"Key-value pairs are matched using the two-argument form of the mapping "
"subject's ``get()`` method. Matched key-value pairs must already be present "
"in the mapping, and not created on-the-fly via :meth:`__missing__` or :meth:"
"`__getitem__`."
msgstr ""
msgid ""
"In simple terms ``{KEY1: P1, KEY2: P2, ... }`` matches only if all the "
"following happens:"
msgstr ""
msgid "check ``<subject>`` is a mapping"
msgstr ""
msgid "``KEY1 in <subject>``"
msgstr ""
msgid "``P1`` matches ``<subject>[KEY1]``"
msgstr ""
msgid "... and so on for the corresponding KEY/pattern pair."
msgstr ""
msgid "Class Patterns"
msgstr ""
msgid ""
"A class pattern represents a class and its positional and keyword arguments "
"(if any). Syntax:"
msgstr ""
msgid "The same keyword should not be repeated in class patterns."
msgstr ""
msgid ""
"The following is the logical flow for matching a class pattern against a "
"subject value:"
msgstr ""
msgid ""
"If ``name_or_attr`` is not an instance of the builtin :class:`type` , raise :"
"exc:`TypeError`."
msgstr ""
msgid ""
"If the subject value is not an instance of ``name_or_attr`` (tested via :"
"func:`isinstance`), the class pattern fails."
msgstr ""
msgid ""
"If no pattern arguments are present, the pattern succeeds. Otherwise, the "
"subsequent steps depend on whether keyword or positional argument patterns "
"are present."
msgstr ""
msgid ""
"For a number of built-in types (specified below), a single positional "
"subpattern is accepted which will match the entire subject; for these types "
"keyword patterns also work as for other types."
msgstr ""
msgid ""
"If only keyword patterns are present, they are processed as follows, one by "
"one:"
msgstr ""
msgid "I. The keyword is looked up as an attribute on the subject."
msgstr ""
msgid ""
"If this raises an exception other than :exc:`AttributeError`, the exception "
"bubbles up."
msgstr ""
msgid "If this raises :exc:`AttributeError`, the class pattern has failed."
msgstr ""
msgid ""
"Else, the subpattern associated with the keyword pattern is matched against "
"the subject's attribute value. If this fails, the class pattern fails; if "
"this succeeds, the match proceeds to the next keyword."
msgstr ""
msgid "II. If all keyword patterns succeed, the class pattern succeeds."
msgstr ""
msgid ""
"If any positional patterns are present, they are converted to keyword "
"patterns using the :data:`~object.__match_args__` attribute on the class "
"``name_or_attr`` before matching:"
msgstr ""
msgid ""
"I. The equivalent of ``getattr(cls, \"__match_args__\", ())`` is called."
msgstr ""
msgid "If this raises an exception, the exception bubbles up."
msgstr ""
msgid ""
"If the returned value is not a tuple, the conversion fails and :exc:"
"`TypeError` is raised."
msgstr ""
msgid ""
"If there are more positional patterns than ``len(cls.__match_args__)``, :exc:"
"`TypeError` is raised."
msgstr ""
msgid ""
"Otherwise, positional pattern ``i`` is converted to a keyword pattern using "
"``__match_args__[i]`` as the keyword. ``__match_args__[i]`` must be a "
"string; if not :exc:`TypeError` is raised."
msgstr ""
msgid "If there are duplicate keywords, :exc:`TypeError` is raised."
msgstr ""
msgid ":ref:`class-pattern-matching`"
msgstr ":ref:`class-pattern-matching`"
msgid ""
"II. Once all positional patterns have been converted to keyword patterns,"
msgstr ""