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2911 lines (2443 loc) · 88.1 KB
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# SOME DESCRIPTIVE TITLE.
# Copyright (C) 2001-2025, Python Software Foundation
# This file is distributed under the same license as the Python package.
# FIRST AUTHOR <EMAIL@ADDRESS>, 2025.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: Python 3.13\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2025-03-04 13:08+0200\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language: ro\n"
"Language-Team: ro <LL@li.org>\n"
"Plural-Forms: nplurals=3; plural=(n==1 ? 0 : (n==0 || (n%100 > 0 && n%100"
" < 20)) ? 1 : 2);\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Generated-By: Babel 2.17.0\n"
#: ../../reference/compound_stmts.rst:5
msgid "Compound statements"
msgstr ""
#: ../../reference/compound_stmts.rst:9
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 ""
#: ../../reference/compound_stmts.rst:14
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 ""
#: ../../reference/compound_stmts.rst:26
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 ""
#: ../../reference/compound_stmts.rst:37
msgid "if test1: if test2: print(x)"
msgstr ""
#: ../../reference/compound_stmts.rst:39
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 ""
#: ../../reference/compound_stmts.rst:43
msgid "if x < y < z: print(x); print(y); print(z)"
msgstr ""
#: ../../reference/compound_stmts.rst:45
msgid "Summarizing:"
msgstr ""
#: ../../reference/compound_stmts.rst:69
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 ""
#: ../../reference/compound_stmts.rst:75
msgid ""
"The formatting of the grammar rules in the following sections places each"
" clause on a separate line for clarity."
msgstr ""
#: ../../reference/compound_stmts.rst:84
msgid "The :keyword:`!if` statement"
msgstr ""
#: ../../reference/compound_stmts.rst:92
msgid "The :keyword:`if` statement is used for conditional execution:"
msgstr ""
#: ../../reference/compound_stmts.rst:99
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 ""
#: ../../reference/compound_stmts.rst:109
msgid "The :keyword:`!while` statement"
msgstr ""
#: ../../reference/compound_stmts.rst:117
msgid ""
"The :keyword:`while` statement is used for repeated execution as long as "
"an expression is true:"
msgstr ""
#: ../../reference/compound_stmts.rst:124
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 ""
#: ../../reference/compound_stmts.rst:133
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 ""
#: ../../reference/compound_stmts.rst:142
msgid "The :keyword:`!for` statement"
msgstr ""
#: ../../reference/compound_stmts.rst:153
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 ""
#: ../../reference/compound_stmts.rst:160
msgid ""
"The ``starred_list`` expression is evaluated once; it should yield an "
":term:`iterable` object. An :term:`iterator` is created for that "
"iterable. The first item provided by the iterator is then assigned to the"
" target list using the standard rules for assignments (see "
":ref:`assignment`), and the suite is executed. This repeats for each "
"item provided by the iterator. When the iterator is exhausted, the suite"
" in the :keyword:`!else` clause, if present, is executed, and the loop "
"terminates."
msgstr ""
#: ../../reference/compound_stmts.rst:173
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 ""
#: ../../reference/compound_stmts.rst:179
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 ""
#: ../../reference/compound_stmts.rst:183
msgid ""
"for i in range(10):\n"
" print(i)\n"
" i = 5 # this will not affect the for-loop\n"
" # because i will be overwritten with the next\n"
" # index in the range"
msgstr ""
#: ../../reference/compound_stmts.rst:193
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 ""
#: ../../reference/compound_stmts.rst:198
msgid "Starred elements are now allowed in the expression list."
msgstr ""
#: ../../reference/compound_stmts.rst:205
msgid "The :keyword:`!try` statement"
msgstr ""
#: ../../reference/compound_stmts.rst:215
msgid ""
"The :keyword:`!try` statement specifies exception handlers and/or cleanup"
" code for a group of statements:"
msgstr ""
#: ../../reference/compound_stmts.rst:231
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 ""
#: ../../reference/compound_stmts.rst:239
msgid ":keyword:`!except` clause"
msgstr ""
#: ../../reference/compound_stmts.rst:241
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 :keyword:`!except` clauses in turn until one is found that matches "
"the exception. An expression-less :keyword:`!except` clause, if present, "
"must be last; it matches any exception."
msgstr ""
#: ../../reference/compound_stmts.rst:249
msgid ""
"For an :keyword:`!except` clause with an expression, the expression must "
"evaluate to an exception type or a tuple of exception types. The raised "
"exception matches an :keyword:`!except` clause whose expression evaluates"
" to the class or a :term:`non-virtual base class <abstract base class>` "
"of the exception object, or to a tuple that contains such a class."
msgstr ""
#: ../../reference/compound_stmts.rst:255
msgid ""
"If no :keyword:`!except` clause matches the exception, the search for an "
"exception handler continues in the surrounding code and on the invocation"
" stack. [#]_"
msgstr ""
#: ../../reference/compound_stmts.rst:259
msgid ""
"If the evaluation of an expression in the header of an :keyword:`!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 ""
#: ../../reference/compound_stmts.rst:267
msgid ""
"When a matching :keyword:`!except` clause is found, the exception is "
"assigned to the target specified after the :keyword:`!as` keyword in that"
" :keyword:`!except` clause, if present, and the :keyword:`!except` "
"clause's suite is executed. All :keyword:`!except` clauses must have an "
"executable block. When the end of this block is reached, execution "
"continues normally after the entire :keyword:`try` statement. (This means"
" that if two nested handlers exist for the same exception, and the "
"exception occurs in the :keyword:`!try` clause of the inner handler, the "
"outer handler will not handle the exception.)"
msgstr ""
#: ../../reference/compound_stmts.rst:278
msgid ""
"When an exception has been assigned using ``as target``, it is cleared at"
" the end of the :keyword:`!except` clause. This is as if ::"
msgstr ""
#: ../../reference/compound_stmts.rst:281
msgid ""
"except E as N:\n"
" foo"
msgstr ""
#: ../../reference/compound_stmts.rst:284
msgid "was translated to ::"
msgstr ""
#: ../../reference/compound_stmts.rst:286
msgid ""
"except E as N:\n"
" try:\n"
" foo\n"
" finally:\n"
" del N"
msgstr ""
#: ../../reference/compound_stmts.rst:292
msgid ""
"This means the exception must be assigned to a different name to be able "
"to refer to it after the :keyword:`!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 ""
#: ../../reference/compound_stmts.rst:302
msgid ""
"Before an :keyword:`!except` clause's suite is executed, the exception is"
" stored in the :mod:`sys` module, where it can be accessed from within "
"the body of the :keyword:`!except` clause by calling "
":func:`sys.exception`. When leaving an exception handler, the exception "
"stored in the :mod:`sys` module is reset to its previous value::"
msgstr ""
#: ../../reference/compound_stmts.rst:308
msgid ""
">>> print(sys.exception())\n"
"None\n"
">>> try:\n"
"... raise TypeError\n"
"... except:\n"
"... print(repr(sys.exception()))\n"
"... try:\n"
"... raise ValueError\n"
"... except:\n"
"... print(repr(sys.exception()))\n"
"... print(repr(sys.exception()))\n"
"...\n"
"TypeError()\n"
"ValueError()\n"
"TypeError()\n"
">>> print(sys.exception())\n"
"None"
msgstr ""
#: ../../reference/compound_stmts.rst:333
msgid ":keyword:`!except*` clause"
msgstr ""
#: ../../reference/compound_stmts.rst:335
msgid ""
"The :keyword:`!except*` clause(s) are used for handling "
":exc:`ExceptionGroup`\\s. The exception type for matching is interpreted "
"as in the case of :keyword:`except`, but in the case of exception groups "
"we can have partial matches when the type matches some of the exceptions "
"in the group. This means that multiple :keyword:`!except*` clauses can "
"execute, each handling part of the exception group. Each clause executes "
"at most once and handles an exception group of all matching exceptions. "
"Each exception in the group is handled by at most one :keyword:`!except*`"
" clause, the first that matches it. ::"
msgstr ""
#: ../../reference/compound_stmts.rst:345
#, python-brace-format
msgid ""
">>> try:\n"
"... raise ExceptionGroup(\"eg\",\n"
"... [ValueError(1), TypeError(2), OSError(3), OSError(4)])\n"
"... except* TypeError as e:\n"
"... print(f'caught {type(e)} with nested {e.exceptions}')\n"
"... except* OSError as e:\n"
"... print(f'caught {type(e)} with nested {e.exceptions}')\n"
"...\n"
"caught <class 'ExceptionGroup'> with nested (TypeError(2),)\n"
"caught <class 'ExceptionGroup'> with nested (OSError(3), OSError(4))\n"
" + Exception Group Traceback (most recent call last):\n"
" | File \"<stdin>\", line 2, in <module>\n"
" | ExceptionGroup: eg\n"
" +-+---------------- 1 ----------------\n"
" | ValueError: 1\n"
" +------------------------------------"
msgstr ""
#: ../../reference/compound_stmts.rst:363
msgid ""
"Any remaining exceptions that were not handled by any :keyword:`!except*`"
" clause are re-raised at the end, along with all exceptions that were "
"raised from within the :keyword:`!except*` clauses. If this list contains"
" more than one exception to reraise, they are combined into an exception "
"group."
msgstr ""
#: ../../reference/compound_stmts.rst:369
msgid ""
"If the raised exception is not an exception group and its type matches "
"one of the :keyword:`!except*` clauses, it is caught and wrapped by an "
"exception group with an empty message string. ::"
msgstr ""
#: ../../reference/compound_stmts.rst:373
msgid ""
">>> try:\n"
"... raise BlockingIOError\n"
"... except* BlockingIOError as e:\n"
"... print(repr(e))\n"
"...\n"
"ExceptionGroup('', (BlockingIOError()))"
msgstr ""
#: ../../reference/compound_stmts.rst:380
msgid ""
"An :keyword:`!except*` clause must have a matching expression; it cannot "
"be ``except*:``. Furthermore, this expression cannot contain exception "
"group types, because that would have ambiguous semantics."
msgstr ""
#: ../../reference/compound_stmts.rst:384
msgid ""
"It is not possible to mix :keyword:`except` and :keyword:`!except*` in "
"the same :keyword:`try`. :keyword:`break`, :keyword:`continue` and "
":keyword:`return` cannot appear in an :keyword:`!except*` clause."
msgstr ""
#: ../../reference/compound_stmts.rst:399
msgid ":keyword:`!else` clause"
msgstr ""
#: ../../reference/compound_stmts.rst:401
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 ""
#: ../../reference/compound_stmts.rst:413
msgid ":keyword:`!finally` clause"
msgstr ""
#: ../../reference/compound_stmts.rst:415
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 ""
#: ../../reference/compound_stmts.rst:425
msgid ""
">>> def f():\n"
"... try:\n"
"... 1/0\n"
"... finally:\n"
"... return 42\n"
"...\n"
">>> f()\n"
"42"
msgstr ""
#: ../../reference/compound_stmts.rst:434
msgid ""
"The exception information is not available to the program during "
"execution of the :keyword:`!finally` clause."
msgstr ""
#: ../../reference/compound_stmts.rst:442
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 ""
#: ../../reference/compound_stmts.rst:446
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 ""
#: ../../reference/compound_stmts.rst:451
msgid ""
">>> def foo():\n"
"... try:\n"
"... return 'try'\n"
"... finally:\n"
"... return 'finally'\n"
"...\n"
">>> foo()\n"
"'finally'"
msgstr ""
#: ../../reference/compound_stmts.rst:460
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 ""
#: ../../reference/compound_stmts.rst:469
msgid "The :keyword:`!with` statement"
msgstr ""
#: ../../reference/compound_stmts.rst:478
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 ""
#: ../../reference/compound_stmts.rst:488
msgid ""
"The execution of the :keyword:`with` statement with one \"item\" proceeds"
" as follows:"
msgstr ""
#: ../../reference/compound_stmts.rst:490
msgid ""
"The context expression (the expression given in the :token:`~python-"
"grammar:with_item`) is evaluated to obtain a context manager."
msgstr ""
#: ../../reference/compound_stmts.rst:493
msgid "The context manager's :meth:`~object.__enter__` is loaded for later use."
msgstr ""
#: ../../reference/compound_stmts.rst:495
msgid "The context manager's :meth:`~object.__exit__` is loaded for later use."
msgstr ""
#: ../../reference/compound_stmts.rst:497
msgid "The context manager's :meth:`~object.__enter__` method is invoked."
msgstr ""
#: ../../reference/compound_stmts.rst:499
msgid ""
"If a target was included in the :keyword:`with` statement, the return "
"value from :meth:`~object.__enter__` is assigned to it."
msgstr ""
#: ../../reference/compound_stmts.rst:504
msgid ""
"The :keyword:`with` statement guarantees that if the "
":meth:`~object.__enter__` method returns without an error, then "
":meth:`~object.__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 ""
#: ../../reference/compound_stmts.rst:510
msgid "The suite is executed."
msgstr ""
#: ../../reference/compound_stmts.rst:512
msgid ""
"The context manager's :meth:`~object.__exit__` method is invoked. If an "
"exception caused the suite to be exited, its type, value, and traceback "
"are passed as arguments to :meth:`~object.__exit__`. Otherwise, three "
":const:`None` arguments are supplied."
msgstr ""
#: ../../reference/compound_stmts.rst:517
msgid ""
"If the suite was exited due to an exception, and the return value from "
"the :meth:`~object.__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 ""
#: ../../reference/compound_stmts.rst:522
msgid ""
"If the suite was exited for any reason other than an exception, the "
"return value from :meth:`~object.__exit__` is ignored, and execution "
"proceeds at the normal location for the kind of exit that was taken."
msgstr ""
#: ../../reference/compound_stmts.rst:526
#: ../../reference/compound_stmts.rst:1549
#: ../../reference/compound_stmts.rst:1590
msgid "The following code::"
msgstr ""
#: ../../reference/compound_stmts.rst:528
msgid ""
"with EXPRESSION as TARGET:\n"
" SUITE"
msgstr ""
#: ../../reference/compound_stmts.rst:531
#: ../../reference/compound_stmts.rst:556
#: ../../reference/compound_stmts.rst:1595
msgid "is semantically equivalent to::"
msgstr ""
#: ../../reference/compound_stmts.rst:533
msgid ""
"manager = (EXPRESSION)\n"
"enter = type(manager).__enter__\n"
"exit = type(manager).__exit__\n"
"value = enter(manager)\n"
"hit_except = False\n"
"\n"
"try:\n"
">
" SUITE\n"
"except:\n"
" hit_except = True\n"
" if not exit(manager, *sys.exc_info()):\n"
" raise\n"
"finally:\n"
" if not hit_except:\n"
" exit(manager, None, None, None)"
msgstr ""
#: ../../reference/compound_stmts.rst:550
msgid ""
"With more than one item, the context managers are processed as if "
"multiple :keyword:`with` statements were nested::"
msgstr ""
#: ../../reference/compound_stmts.rst:553
msgid ""
"with A() as a, B() as b:\n"
" SUITE"
msgstr ""
#: ../../reference/compound_stmts.rst:558
msgid ""
"with A() as a:\n"
" with B() as b:\n"
" SUITE"
msgstr ""
#: ../../reference/compound_stmts.rst:562
msgid ""
"You can also write multi-item context managers in multiple lines if the "
"items are surrounded by parentheses. For example::"
msgstr ""
#: ../../reference/compound_stmts.rst:565
msgid ""
"with (\n"
" A() as a,\n"
" B() as b,\n"
"):\n"
" SUITE"
msgstr ""
#: ../../reference/compound_stmts.rst:571
msgid "Support for multiple context expressions."
msgstr ""
#: ../../reference/compound_stmts.rst:574
msgid ""
"Support for using grouping parentheses to break the statement in multiple"
" lines."
msgstr ""
#: ../../reference/compound_stmts.rst:579
msgid ":pep:`343` - The \"with\" statement"
msgstr ""
#: ../../reference/compound_stmts.rst:580
msgid ""
"The specification, background, and examples for the Python "
":keyword:`with` statement."
msgstr ""
#: ../../reference/compound_stmts.rst:586
msgid "The :keyword:`!match` statement"
msgstr ""
#: ../../reference/compound_stmts.rst:600
msgid "The match statement is used for pattern matching. Syntax:"
msgstr ""
#: ../../reference/compound_stmts.rst:609
msgid ""
"This section uses single quotes to denote :ref:`soft keywords <soft-"
"keywords>`."
msgstr ""
#: ../../reference/compound_stmts.rst:612
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 ""
#: ../../reference/compound_stmts.rst:616
msgid "A match success or failure (also termed a pattern success or failure)."
msgstr ""
#: ../../reference/compound_stmts.rst:618
msgid ""
"Possible binding of matched values to a name. The prerequisites for this"
" are further discussed below."
msgstr ""
#: ../../reference/compound_stmts.rst:621
msgid ""
"The ``match`` and ``case`` keywords are :ref:`soft keywords <soft-"
"keywords>`."
msgstr ""
#: ../../reference/compound_stmts.rst:625
#: ../../reference/compound_stmts.rst:1182
msgid ":pep:`634` -- Structural Pattern Matching: Specification"
msgstr ""
#: ../../reference/compound_stmts.rst:626
#: ../../reference/compound_stmts.rst:1183
msgid ":pep:`636` -- Structural Pattern Matching: Tutorial"
msgstr ""
#: ../../reference/compound_stmts.rst:630
msgid "Overview"
msgstr ""
#: ../../reference/compound_stmts.rst:632
msgid "Here's an overview of the logical flow of a match statement:"
msgstr ""
#: ../../reference/compound_stmts.rst:635
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 ""
#: ../../reference/compound_stmts.rst:639
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 ""
#: ../../reference/compound_stmts.rst:648
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 ""
#: ../../reference/compound_stmts.rst:655
msgid ""
"If the pattern succeeds, the corresponding guard (if present) is "
"evaluated. In this case all name bindings are guaranteed to have "
"happened."
msgstr ""
#: ../../reference/compound_stmts.rst:658
msgid ""
"If the guard evaluates as true or is missing, the ``block`` inside "
"``case_block`` is executed."
msgstr ""
#: ../../reference/compound_stmts.rst:661
msgid "Otherwise, the next ``case_block`` is attempted as described above."
msgstr ""
#: ../../reference/compound_stmts.rst:663
msgid "If there are no further case blocks, the match statement is completed."
msgstr ""
#: ../../reference/compound_stmts.rst:667
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 ""
#: ../../reference/compound_stmts.rst:671
msgid "A sample match statement::"
msgstr ""
#: ../../reference/compound_stmts.rst:673
#, python-brace-format
msgid ""
">>> flag = False\n"
">>> match (100, 200):\n"
"... case (100, 300): # Mismatch: 200 != 300\n"
"... print('Case 1')\n"
"... case (100, 200) if flag: # Successful match, but guard fails\n"
"... print('Case 2')\n"
"... case (100, y): # Matches and binds y to 200\n"
"... print(f'Case 3, y: {y}')\n"
"... case _: # Pattern not attempted\n"
"... print('Case 4, I match anything!')\n"
"...\n"
"Case 3, y: 200"
msgstr ""
#: ../../reference/compound_stmts.rst:687
msgid ""
"In this case, ``if flag`` is a guard. Read more about that in the next "
"section."
msgstr ""
#: ../../reference/compound_stmts.rst:690
msgid "Guards"
msgstr ""
#: ../../reference/compound_stmts.rst:697
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 ""
#: ../../reference/compound_stmts.rst:702
msgid "The logical flow of a ``case`` block with a ``guard`` follows:"
msgstr ""
#: ../../reference/compound_stmts.rst:704
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 ""
#: ../../reference/compound_stmts.rst:708
msgid "If the pattern succeeded, evaluate the ``guard``."
msgstr ""
#: ../../reference/compound_stmts.rst:710
msgid "If the ``guard`` condition evaluates as true, the case block is selected."
msgstr ""
#: ../../reference/compound_stmts.rst:713
msgid ""
"If the ``guard`` condition evaluates as false, the case block is not "
"selected."
msgstr ""
#: ../../reference/compound_stmts.rst:716
msgid ""
"If the ``guard`` raises an exception during evaluation, the exception "
"bubbles up."
msgstr ""
#: ../../reference/compound_stmts.rst:719
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 ""
#: ../../reference/compound_stmts.rst:729
msgid "Irrefutable Case Blocks"
msgstr ""
#: ../../reference/compound_stmts.rst:733
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 ""
#: ../../reference/compound_stmts.rst:736
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 ""
#: ../../reference/compound_stmts.rst:741
msgid ":ref:`as-patterns` whose left-hand side is irrefutable"
msgstr ""
#: ../../reference/compound_stmts.rst:743
msgid ":ref:`or-patterns` containing at least one irrefutable pattern"
msgstr ""
#: ../../reference/compound_stmts.rst:745
msgid ":ref:`capture-patterns`"
msgstr ""
#: ../../reference/compound_stmts.rst:747
msgid ":ref:`wildcard-patterns`"
msgstr ""
#: ../../reference/compound_stmts.rst:749
msgid "parenthesized irrefutable patterns"
msgstr ""
#: ../../reference/compound_stmts.rst:753
msgid "Patterns"
msgstr ""
#: ../../reference/compound_stmts.rst:760
msgid "This section uses grammar notations beyond standard EBNF:"
msgstr ""
#: ../../reference/compound_stmts.rst:762
msgid "the notation ``SEP.RULE+`` is shorthand for ``RULE (SEP RULE)*``"
msgstr ""
#: ../../reference/compound_stmts.rst:764
msgid "the notation ``!RULE`` is shorthand for a negative lookahead assertion"
msgstr ""
#: ../../reference/compound_stmts.rst:767
msgid "The top-level syntax for ``patterns`` is:"
msgstr ""
#: ../../reference/compound_stmts.rst:781
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 ""
#: ../../reference/compound_stmts.rst:791
msgid "OR Patterns"
msgstr ""
#: ../../reference/compound_stmts.rst:793
msgid ""
"An OR pattern is two or more patterns separated by vertical bars ``|``. "
"Syntax:"
msgstr ""
#: ../../reference/compound_stmts.rst:799
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 ""
#: ../../reference/compound_stmts.rst:802
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 ""
#: ../../reference/compound_stmts.rst:806
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 ""
#: ../../reference/compound_stmts.rst:812
msgid "AS Patterns"
msgstr ""
#: ../../reference/compound_stmts.rst:814
msgid ""
"An AS pattern matches an OR pattern on the left of the :keyword:`as` "
"keyword against a subject. Syntax:"
msgstr ""
#: ../../reference/compound_stmts.rst:820
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 ""
#: ../../reference/compound_stmts.rst:824
msgid ""
"In simple terms ``P as NAME`` will match with ``P``, and on success it "
"will set ``NAME = <subject>``."
msgstr ""
#: ../../reference/compound_stmts.rst:831
msgid "Literal Patterns"
msgstr ""
#: ../../reference/compound_stmts.rst:833
msgid ""
"A literal pattern corresponds to most :ref:`literals <literals>` in "
"Python. Syntax:"
msgstr ""
#: ../../reference/compound_stmts.rst:846
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 ""
#: ../../reference/compound_stmts.rst:851
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 ""
#: ../../reference/compound_stmts.rst:855