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2888 lines (2542 loc) · 89.8 KB
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# 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:
# Bhuvansh Kataria, 2026
# Sukhmanpreet kaur, 2026
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: Python 3.15\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2026-11-05 20:53+0000\n"
"PO-Revision-Date: 2025-09-16 00:00+0000\n"
"Last-Translator: Sukhmanpreet kaur, 2026\n"
"Language-Team: Panjabi (Punjabi) (https://app.transifex.com/python-doc/teams/"
"5390/pa/)\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Language: pa\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
msgid ":mod:`!ast` --- Abstract syntax trees"
msgstr ""
msgid "**Source code:** :source:`Lib/ast.py`"
msgstr ""
msgid ""
"The :mod:`!ast` module helps Python applications to process trees of the "
"Python abstract syntax grammar. The abstract syntax itself might change "
"with each Python release; this module helps to find out programmatically "
"what the current grammar looks like."
msgstr ""
msgid ""
"An abstract syntax tree can be generated by "
"passing :data:`ast.PyCF_ONLY_AST` as a flag to the :func:`compile` built-in "
"function, or using the :func:`parse` helper provided in this module. The "
"result will be a tree of objects whose classes all inherit "
"from :class:`ast.AST`. An abstract syntax tree can be compiled into a "
"Python code object using the built-in :func:`compile` function."
msgstr ""
msgid "Abstract grammar"
msgstr ""
msgid "The abstract grammar is currently defined as follows:"
msgstr ""
msgid ""
"-- ASDL's 4 builtin types are:\n"
"-- identifier, int, string, constant\n"
"\n"
"module Python\n"
"{\n"
" mod = Module(stmt* body, type_ignore* type_ignores)\n"
" | Interactive(stmt* body)\n"
" | Expression(expr body)\n"
" | FunctionType(expr* argtypes, expr returns)\n"
"\n"
" stmt = FunctionDef(identifier name, arguments args,\n"
" stmt* body, expr* decorator_list, expr? returns,\n"
" string? type_comment, type_param* type_params)\n"
" | AsyncFunctionDef(identifier name, arguments args,\n"
" stmt* body, expr* decorator_list, expr? "
"returns,\n"
" string? type_comment, type_param* type_params)\n"
"\n"
" | ClassDef(identifier name,\n"
" expr* bases,\n"
" keyword* keywords,\n"
" stmt* body,\n"
" expr* decorator_list,\n"
" type_param* type_params)\n"
" | Return(expr? value)\n"
"\n"
" | Delete(expr* targets)\n"
" | Assign(expr* targets, expr value, string? type_comment)\n"
" | TypeAlias(expr name, type_param* type_params, expr value)\n"
" | AugAssign(expr target, operator op, expr value)\n"
" -- 'simple' indicates that we annotate simple name without parens\n"
" | AnnAssign(expr target, expr annotation, expr? value, int "
"simple)\n"
"\n"
" -- use 'orelse' because else is a keyword in target languages\n"
" | For(expr target, expr iter, stmt* body, stmt* orelse, string? "
"type_comment)\n"
" | AsyncFor(expr target, expr iter, stmt* body, stmt* orelse, "
"string? type_comment)\n"
" | While(expr test, stmt* body, stmt* orelse)\n"
" | If(expr test, stmt* body, stmt* orelse)\n"
" | With(withitem* items, stmt* body, string? type_comment)\n"
" | AsyncWith(withitem* items, stmt* body, string? type_comment)\n"
"\n"
" | Match(expr subject, match_case* cases)\n"
"\n"
" | Raise(expr? exc, expr? cause)\n"
" | Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* "
"finalbody)\n"
" | TryStar(stmt* body, excepthandler* handlers, stmt* orelse, stmt* "
"finalbody)\n"
" | Assert(expr test, expr? msg)\n"
"\n"
" | Import(alias* names, int? is_lazy)\n"
" | ImportFrom(identifier? module, alias* names, int? level, int? "
"is_lazy)\n"
"\n"
" | Global(identifier* names)\n"
" | Nonlocal(identifier* names)\n"
" | Expr(expr value)\n"
" | Pass | Break | Continue\n"
"\n"
" -- col_offset is the byte offset in the utf8 string the parser "
"uses\n"
" attributes (int lineno, int col_offset, int? end_lineno, int? "
"end_col_offset)\n"
"\n"
" -- BoolOp() can use left & right?\n"
" expr = BoolOp(boolop op, expr* values)\n"
" | NamedExpr(expr target, expr value)\n"
" | BinOp(expr left, operator op, expr right)\n"
" | UnaryOp(unaryop op, expr operand)\n"
" | Lambda(arguments args, expr body)\n"
" | IfExp(expr test, expr body, expr orelse)\n"
" | Dict(expr?* keys, expr* values)\n"
" | Set(expr* elts)\n"
" | ListComp(expr elt, comprehension* generators)\n"
" | SetComp(expr elt, comprehension* generators)\n"
" | DictComp(expr key, expr? value, comprehension* generators)\n"
" | GeneratorExp(expr elt, comprehension* generators)\n"
" -- the grammar constrains where yield expressions can occur\n"
" | Await(expr value)\n"
" | Yield(expr? value)\n"
" | YieldFrom(expr value)\n"
" -- need sequences for compare to distinguish between\n"
" -- x < 4 < 3 and (x < 4) < 3\n"
" | Compare(expr left, cmpop* ops, expr* comparators)\n"
" | Call(expr func, expr* args, keyword* keywords)\n"
" | FormattedValue(expr value, int conversion, expr? format_spec)\n"
" | Interpolation(expr value, constant str, int conversion, expr? "
"format_spec)\n"
" | JoinedStr(expr* values)\n"
" | TemplateStr(expr* values)\n"
" | Constant(constant value, string? kind)\n"
"\n"
" -- the following expression can appear in assignment context\n"
" | Attribute(expr value, identifier attr, expr_context ctx)\n"
" | Subscript(expr value, expr slice, expr_context ctx)\n"
" | Starred(expr value, expr_context ctx)\n"
" | Name(identifier id, expr_context ctx)\n"
" | List(expr* elts, expr_context ctx)\n"
" | Tuple(expr* elts, expr_context ctx)\n"
"\n"
" -- can appear only in Subscript\n"
" | Slice(expr? lower, expr? upper, expr? step)\n"
"\n"
" -- col_offset is the byte offset in the utf8 string the parser "
"uses\n"
" attributes (int lineno, int col_offset, int? end_lineno, int? "
"end_col_offset)\n"
"\n"
" expr_context = Load | Store | Del\n"
"\n"
" boolop = And | Or\n"
"\n"
" operator = Add | Sub | Mult | MatMult | Div | Mod | Pow | LShift\n"
" | RShift | BitOr | BitXor | BitAnd | FloorDiv\n"
"\n"
" unaryop = Invert | Not | UAdd | USub\n"
"\n"
" cmpop = Eq | NotEq | Lt | LtE | Gt | GtE | Is | IsNot | In | NotIn\n"
"\n"
" comprehension = (expr target, expr iter, expr* ifs, int is_async)\n"
"\n"
" excepthandler = ExceptHandler(expr? type, identifier? name, stmt* body)\n"
" attributes (int lineno, int col_offset, int? end_lineno, "
"int? end_col_offset)\n"
"\n"
" arguments = (arg* posonlyargs, arg* args, arg? vararg, arg* kwonlyargs,\n"
" expr?* kw_defaults, arg? kwarg, expr* defaults)\n"
"\n"
" arg = (identifier arg, expr? annotation, string? type_comment)\n"
" attributes (int lineno, int col_offset, int? end_lineno, int? "
"end_col_offset)\n"
"\n"
" -- keyword arguments supplied to call (NULL identifier for **kwargs)\n"
" keyword = (identifier? arg, expr value)\n"
" attributes (int lineno, int col_offset, int? end_lineno, int? "
"end_col_offset)\n"
"\n"
" -- import name with optional 'as' alias.\n"
" alias = (identifier name, identifier? asname)\n"
" attributes (int lineno, int col_offset, int? end_lineno, int? "
"end_col_offset)\n"
"\n"
" withitem = (expr context_expr, expr? optional_vars)\n"
"\n"
" match_case = (pattern pattern, expr? guard, stmt* body)\n"
"\n"
" pattern = MatchValue(expr value)\n"
" | MatchSingleton(constant value)\n"
" | MatchSequence(pattern* patterns)\n"
" | MatchMapping(expr* keys, pattern* patterns, identifier? rest)\n"
" | MatchClass(expr cls, pattern* patterns, identifier* kwd_attrs, "
"pattern* kwd_patterns)\n"
"\n"
" | MatchStar(identifier? name)\n"
" -- The optional \"rest\" MatchMapping parameter handles "
"capturing extra mapping keys\n"
"\n"
" | MatchAs(pattern? pattern, identifier? name)\n"
" | MatchOr(pattern* patterns)\n"
"\n"
" attributes (int lineno, int col_offset, int end_lineno, int "
"end_col_offset)\n"
"\n"
" type_ignore = TypeIgnore(int lineno, string tag)\n"
"\n"
" type_param = TypeVar(identifier name, expr? bound, expr? default_value)\n"
" | ParamSpec(identifier name, expr? default_value)\n"
" | TypeVarTuple(identifier name, expr? default_value)\n"
" attributes (int lineno, int col_offset, int end_lineno, int "
"end_col_offset)\n"
"}\n"
msgstr ""
msgid "Node classes"
msgstr ""
msgid ""
"This is the abstract base of all AST node classes. The actual node classes "
"are derived from the :file:`Parser/Python.asdl` file, which is "
"reproduced :ref:`above <abstract-grammar>`. They are defined in the :mod:`!"
"_ast` C module and re-exported in :mod:`!ast`."
msgstr ""
msgid ""
"There is one class defined for each left-hand side symbol in the abstract "
"grammar (for example, :class:`ast.stmt` or :class:`ast.expr`). In addition, "
"there is one class defined for each constructor on the right-hand side; "
"these classes inherit from the classes for the left-hand side trees. For "
"example, :class:`ast.BinOp` inherits from :class:`ast.expr`. For production "
"rules with alternatives (aka \"sums\"), the left-hand side class is "
"abstract: only instances of specific constructor nodes are ever created."
msgstr ""
msgid ""
"Each concrete class has an attribute :attr:`!_fields` which gives the names "
"of all child nodes."
msgstr ""
msgid ""
"Each instance of a concrete class has one attribute for each child node, of "
"the type as defined in the grammar. For example, :class:`ast.BinOp` "
"instances have an attribute :attr:`left` of type :class:`ast.expr`."
msgstr ""
msgid ""
"If these attributes are marked as optional in the grammar (using a question "
"mark), the value might be ``None``. If the attributes can have zero-or-more "
"values (marked with an asterisk), the values are represented as Python "
"lists. All possible attributes must be present and have valid values when "
"compiling an AST with :func:`compile`."
msgstr ""
msgid ""
"The :attr:`!_field_types` attribute on each concrete class is a dictionary "
"mapping field names (as also listed in :attr:`_fields`) to their types."
msgstr ""
msgid ""
">>> ast.TypeVar._field_types\n"
"{'name': <class 'str'>, 'bound': ast.expr | None, 'default_value': ast.expr "
"| None}"
msgstr ""
msgid ""
"Instances of :class:`ast.expr` and :class:`ast.stmt` subclasses "
"have :attr:`lineno`, :attr:`col_offset`, :attr:`end_lineno`, "
"and :attr:`end_col_offset` attributes. The :attr:`lineno` "
"and :attr:`end_lineno` are the first and last line numbers of source text "
"span (1-indexed so the first line is line 1) and the :attr:`col_offset` "
"and :attr:`end_col_offset` are the corresponding UTF-8 byte offsets of the "
"first and last tokens that generated the node. The UTF-8 offset is recorded "
"because the parser uses UTF-8 internally."
msgstr ""
msgid ""
"Note that the end positions are not required by the compiler and are "
"therefore optional. The end offset is *after* the last symbol, for example "
"one can get the source segment of a one-line expression node using "
"``source_line[node.col_offset : node.end_col_offset]``."
msgstr ""
msgid ""
"The constructor of a class :class:`ast.T` parses its arguments as follows:"
msgstr ""
msgid ""
"If there are positional arguments, there must be as many as there are items "
"in :attr:`T._fields`; they will be assigned as attributes of these names."
msgstr ""
msgid ""
"If there are keyword arguments, they will set the attributes of the same "
"names to the given values."
msgstr ""
msgid ""
"For example, to create and populate an :class:`ast.UnaryOp` node, you could "
"use ::"
msgstr ""
msgid ""
"node = ast.UnaryOp(ast.USub(), ast.Constant(5, lineno=0, col_offset=0),\n"
" lineno=0, col_offset=0)"
msgstr ""
msgid ""
"If a field that is optional in the grammar is omitted from the constructor, "
"it defaults to ``None``. If a list field is omitted, it defaults to the "
"empty list. If a field of type :class:`!ast.expr_context` is omitted, it "
"defaults to :class:`Load() <ast.Load>`. If any other field is omitted, "
"a :exc:`DeprecationWarning` is raised and the AST node will not have this "
"field. In Python 3.15, this condition will raise an error."
msgstr ""
msgid "Class :class:`ast.Constant` is now used for all constants."
msgstr ""
msgid ""
"Simple indices are represented by their value, extended slices are "
"represented as tuples."
msgstr ""
msgid ""
"AST node constructors were changed to provide sensible defaults for omitted "
"fields: optional fields now default to ``None``, list fields default to an "
"empty list, and fields of type :class:`!ast.expr_context` default "
"to :class:`Load() <ast.Load>`. Previously, omitted attributes would not "
"exist on constructed nodes (accessing them raised :exc:`AttributeError`)."
msgstr ""
msgid ""
"The :meth:`~object.__repr__` output of :class:`~ast.AST` nodes includes the "
"values of the node fields."
msgstr ""
msgid ""
"Previous versions of Python provided the AST classes :class:`!"
"ast.Num`, :class:`!ast.Str`, :class:`!ast.Bytes`, :class:`!ast.NameConstant` "
"and :class:`!ast.Ellipsis`, which were deprecated in Python 3.8. These "
"classes were removed in Python 3.14, and their functionality has been "
"replaced with :class:`ast.Constant`."
msgstr ""
msgid ""
"Old classes :class:`!ast.Index` and :class:`!ast.ExtSlice` are still "
"available, but they will be removed in future Python releases. In the "
"meantime, instantiating them will return an instance of a different class."
msgstr ""
msgid ""
"Previous versions of Python allowed the creation of AST nodes that were "
"missing required fields. Similarly, AST node constructors allowed arbitrary "
"keyword arguments that were set as attributes of the AST node, even if they "
"did not match any of the fields of the AST node. These cases now raise "
"a :exc:`TypeError`."
msgstr ""
msgid ""
"In the :ref:`grammar above <abstract-grammar>`, the AST node classes that "
"correspond to production rules with variants (aka \"sums\") are abstract "
"classes. Previous versions of Python allowed for the creation of direct "
"instances of these abstract node classes. This behavior is deprecated and "
"will be removed in Python 3.20."
msgstr ""
msgid ""
"The descriptions of the specific node classes displayed here were initially "
"adapted from the fantastic `Green Tree Snakes <https://"
"greentreesnakes.readthedocs.io/en/latest/>`__ project and all its "
"contributors."
msgstr ""
msgid "Root nodes"
msgstr ""
msgid ""
"A Python module, as with :ref:`file input <file-input>`. Node type generated "
"by :func:`ast.parse` in the default ``\"exec\"`` *mode*."
msgstr ""
msgid "``body`` is a :class:`list` of the module's :ref:`ast-statements`."
msgstr ""
msgid ""
"``type_ignores`` is a :class:`list` of the module's type ignore comments; "
"see :func:`ast.parse` for more details."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('x = 1'), indent=4))\n"
"Module(\n"
" body=[\n"
" Assign(\n"
" targets=[\n"
" Name(id='x', ctx=Store())],\n"
" value=Constant(value=1))])"
msgstr ""
msgid ""
"A single Python :ref:`expression input <expression-input>`. Node type "
"generated by :func:`ast.parse` when *mode* is ``\"eval\"``."
msgstr ""
msgid ""
"``body`` is a single node, one of the :ref:`expression types <ast-"
"expressions>`."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('123', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Constant(value=123))"
msgstr ""
msgid ""
"A single :ref:`interactive input <interactive>`, like in :ref:`tut-interac`. "
"Node type generated by :func:`ast.parse` when *mode* is ``\"single\"``."
msgstr ""
msgid "``body`` is a :class:`list` of :ref:`statement nodes <ast-statements>`."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('x = 1; y = 2', mode='single'), indent=4))\n"
"Interactive(\n"
" body=[\n"
" Assign(\n"
" targets=[\n"
" Name(id='x', ctx=Store())],\n"
" value=Constant(value=1)),\n"
" Assign(\n"
" targets=[\n"
" Name(id='y', ctx=Store())],\n"
" value=Constant(value=2))])"
msgstr ""
msgid ""
"A representation of an old-style type comments for functions, as Python "
"versions prior to 3.5 didn't support :pep:`484` annotations. Node type "
"generated by :func:`ast.parse` when *mode* is ``\"func_type\"``."
msgstr ""
msgid "Such type comments would look like this::"
msgstr ""
msgid ""
"def sum_two_number(a, b):\n"
" # type: (int, int) -> int\n"
" return a + b"
msgstr ""
msgid ""
"``argtypes`` is a :class:`list` of :ref:`expression nodes <ast-expressions>`."
msgstr ""
msgid "``returns`` is a single :ref:`expression node <ast-expressions>`."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('(int, str) -> List[int]', mode='func_type'), "
"indent=4))\n"
"FunctionType(\n"
" argtypes=[\n"
" Name(id='int'),\n"
" Name(id='str')],\n"
" returns=Subscript(\n"
" value=Name(id='List'),\n"
" slice=Name(id='int')))"
msgstr ""
msgid "Literals"
msgstr ""
msgid ""
"A constant value. The ``value`` attribute of the ``Constant`` literal "
"contains the Python object it represents. The values represented can be "
"instances "
"of :class:`str`, :class:`bytes`, :class:`int`, :class:`float`, :class:`complex`, "
"and :class:`bool`, and the constants :data:`None` and :data:`Ellipsis`."
msgstr ""
msgid ""
"The ``kind`` attribute is an optional string. For string literals with a "
"``u`` prefix, ``kind`` is set to ``'u'``. For all other constants, ``kind`` "
"is ``None``."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('123', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Constant(value=123))\n"
">>> print(ast.dump(ast.parse(\"u'hello'\", mode='eval'), indent=4))\n"
"Expression(\n"
" body=Constant(value='hello', kind='u'))"
msgstr ""
msgid ""
"Node representing a single formatting field in an f-string. If the string "
"contains a single formatting field and nothing else the node can be isolated "
"otherwise it appears in :class:`JoinedStr`."
msgstr ""
msgid ""
"``value`` is any expression node (such as a literal, a variable, or a "
"function call)."
msgstr ""
msgid "``conversion`` is an integer:"
msgstr ""
msgid "-1: no formatting"
msgstr ""
msgid "97 (``ord('a')``): ``!a`` :func:`ASCII <ascii>` formatting"
msgstr ""
msgid "114 (``ord('r')``): ``!r`` :func:`repr` formatting"
msgstr ""
msgid "115 (``ord('s')``): ``!s`` :func:`string <str>` formatting"
msgstr ""
msgid ""
"``format_spec`` is a :class:`JoinedStr` node representing the formatting of "
"the value, or ``None`` if no format was specified. Both ``conversion`` and "
"``format_spec`` can be set at the same time."
msgstr ""
msgid ""
"An f-string, comprising a series of :class:`FormattedValue` "
"and :class:`Constant` nodes."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('f\"sin({a}) is {sin(a):.3}\"', mode='eval'), "
"indent=4))\n"
"Expression(\n"
" body=JoinedStr(\n"
" values=[\n"
" Constant(value='sin('),\n"
" FormattedValue(\n"
" value=Name(id='a'),\n"
" conversion=-1),\n"
" Constant(value=') is '),\n"
" FormattedValue(\n"
" value=Call(\n"
" func=Name(id='sin'),\n"
" args=[\n"
" Name(id='a')]),\n"
" conversion=-1,\n"
" format_spec=JoinedStr(\n"
" values=[\n"
" Constant(value='.3')]))]))"
msgstr ""
msgid ""
"Node representing a template string literal, comprising a series "
"of :class:`Interpolation` and :class:`Constant` nodes. These nodes may be "
"any order, and do not need to be interleaved."
msgstr ""
msgid ""
">>> expr = ast.parse('t\"{name} finished {place:ordinal}\"', mode='eval')\n"
">>> print(ast.dump(expr, indent=4))\n"
"Expression(\n"
" body=TemplateStr(\n"
" values=[\n"
" Interpolation(\n"
" value=Name(id='name'),\n"
" str='name',\n"
" conversion=-1),\n"
" Constant(value=' finished '),\n"
" Interpolation(\n"
" value=Name(id='place'),\n"
" str='place',\n"
" conversion=-1,\n"
" format_spec=JoinedStr(\n"
" values=[\n"
" Constant(value='ordinal')]))]))"
msgstr ""
msgid ""
"Node representing a single interpolation field in a template string literal."
msgstr ""
msgid ""
"``value`` is any expression node (such as a literal, a variable, or a "
"function call). This has the same meaning as ``FormattedValue.value``."
msgstr ""
msgid ""
"``str`` is a constant containing the text of the interpolation expression."
msgstr ""
msgid ""
"If ``str`` is set to ``None``, then ``value`` is used to generate code when "
"calling :func:`ast.unparse`. This no longer guarantees that the generated "
"code is identical to the original and is intended for code generation."
msgstr ""
msgid "-1: no conversion"
msgstr ""
msgid "97 (``ord('a')``): ``!a`` :func:`ASCII <ascii>` conversion"
msgstr ""
msgid "114 (``ord('r')``): ``!r`` :func:`repr` conversion"
msgstr ""
msgid "115 (``ord('s')``): ``!s`` :func:`string <str>` conversion"
msgstr ""
msgid "This has the same meaning as ``FormattedValue.conversion``."
msgstr ""
msgid ""
"``format_spec`` is a :class:`JoinedStr` node representing the formatting of "
"the value, or ``None`` if no format was specified. Both ``conversion`` and "
"``format_spec`` can be set at the same time. This has the same meaning as "
"``FormattedValue.format_spec``."
msgstr ""
msgid ""
"A list or tuple. ``elts`` holds a list of nodes representing the elements. "
"``ctx`` is :class:`Store` if the container is an assignment target (i.e. "
"``(x,y)=something``), and :class:`Load` otherwise."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('[1, 2, 3]', mode='eval'), indent=4))\n"
"Expression(\n"
" body=List(\n"
" elts=[\n"
" Constant(value=1),\n"
" Constant(value=2),\n"
" Constant(value=3)]))\n"
">>> print(ast.dump(ast.parse('(1, 2, 3)', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Tuple(\n"
" elts=[\n"
" Constant(value=1),\n"
" Constant(value=2),\n"
" Constant(value=3)]))"
msgstr ""
msgid "A set. ``elts`` holds a list of nodes representing the set's elements."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('{1, 2, 3}', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Set(\n"
" elts=[\n"
" Constant(value=1),\n"
" Constant(value=2),\n"
" Constant(value=3)]))"
msgstr ""
msgid ""
"A dictionary. ``keys`` and ``values`` hold lists of nodes representing the "
"keys and the values respectively, in matching order (what would be returned "
"when calling :code:`dictionary.keys()` and :code:`dictionary.values()`)."
msgstr ""
msgid ""
"When doing dictionary unpacking using dictionary literals the expression to "
"be expanded goes in the ``values`` list, with a ``None`` at the "
"corresponding position in ``keys``."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('{\"a\":1, **d}', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Dict(\n"
" keys=[\n"
" Constant(value='a'),\n"
" None],\n"
" values=[\n"
" Constant(value=1),\n"
" Name(id='d')]))"
msgstr ""
msgid "Variables"
msgstr ""
msgid ""
"A variable name. ``id`` holds the name as a string, and ``ctx`` is one of "
"the following types."
msgstr ""
msgid ""
"Variable references can be used to load the value of a variable, to assign a "
"new value to it, or to delete it. Variable references are given a context to "
"distinguish these cases."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('a'), indent=4))\n"
"Module(\n"
" body=[\n"
" Expr(\n"
" value=Name(id='a'))])\n"
"\n"
">>> print(ast.dump(ast.parse('a = 1'), indent=4))\n"
"Module(\n"
" body=[\n"
" Assign(\n"
" targets=[\n"
" Name(id='a', ctx=Store())],\n"
" value=Constant(value=1))])\n"
"\n"
">>> print(ast.dump(ast.parse('del a'), indent=4))\n"
"Module(\n"
" body=[\n"
" Delete(\n"
" targets=[\n"
" Name(id='a', ctx=Del())])])"
msgstr ""
msgid ""
"A ``*var`` variable reference. ``value`` holds the variable, typically "
"a :class:`Name` node. This type must be used when building a :class:`Call` "
"node with ``*args``."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('a, *b = it'), indent=4))\n"
"Module(\n"
" body=[\n"
" Assign(\n"
" targets=[\n"
" Tuple(\n"
" elts=[\n"
" Name(id='a', ctx=Store()),\n"
" Starred(\n"
" value=Name(id='b', ctx=Store()),\n"
" ctx=Store())],\n"
" ctx=Store())],\n"
" value=Name(id='it'))])"
msgstr ""
msgid "Expressions"
msgstr ""
msgid ""
"When an expression, such as a function call, appears as a statement by "
"itself with its return value not used or stored, it is wrapped in this "
"container. ``value`` holds one of the other nodes in this section, "
"a :class:`Constant`, a :class:`Name`, a :class:`Lambda`, a :class:`Yield` "
"or :class:`YieldFrom` node."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('-a'), indent=4))\n"
"Module(\n"
" body=[\n"
" Expr(\n"
" value=UnaryOp(\n"
" op=USub(),\n"
" operand=Name(id='a')))])"
msgstr ""
msgid ""
"A unary operation. ``op`` is the operator, and ``operand`` any expression "
"node."
msgstr ""
msgid ""
"Unary operator tokens. :class:`Not` is the ``not`` keyword, :class:`Invert` "
"is the ``~`` operator."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('not x', mode='eval'), indent=4))\n"
"Expression(\n"
" body=UnaryOp(\n"
" op=Not(),\n"
" operand=Name(id='x')))"
msgstr ""
msgid ""
"A binary operation (like addition or division). ``op`` is the operator, and "
"``left`` and ``right`` are any expression nodes."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('x + y', mode='eval'), indent=4))\n"
"Expression(\n"
" body=BinOp(\n"
" left=Name(id='x'),\n"
" op=Add(),\n"
" right=Name(id='y')))"
msgstr ""
msgid "Binary operator tokens."
msgstr ""
msgid ""
"A boolean operation, 'or' or 'and'. ``op`` is :class:`Or` or :class:`And`. "
"``values`` are the values involved. Consecutive operations with the same "
"operator, such as ``a or b or c``, are collapsed into one node with several "
"values."
msgstr ""
msgid "This doesn't include ``not``, which is a :class:`UnaryOp`."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('x or y', mode='eval'), indent=4))\n"
"Expression(\n"
" body=BoolOp(\n"
" op=Or(),\n"
" values=[\n"
" Name(id='x'),\n"
" Name(id='y')]))"
msgstr ""
msgid "Boolean operator tokens."
msgstr ""
msgid ""
"A comparison of two or more values. ``left`` is the first value in the "
"comparison, ``ops`` the list of operators, and ``comparators`` the list of "
"values after the first element in the comparison."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('1 <= a < 10', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Compare(\n"
" left=Constant(value=1),\n"
" ops=[\n"
" LtE(),\n"
" Lt()],\n"
" comparators=[\n"
" Name(id='a'),\n"
" Constant(value=10)]))"
msgstr ""
msgid "Comparison operator tokens."
msgstr ""
msgid ""
"A function call. ``func`` is the function, which will often be "
"a :class:`Name` or :class:`Attribute` object. Of the arguments:"
msgstr ""
msgid "``args`` holds a list of the arguments passed by position."
msgstr ""
msgid ""
"``keywords`` holds a list of :class:`.keyword` objects representing "
"arguments passed by keyword."
msgstr ""
msgid ""
"The ``args`` and ``keywords`` arguments are optional and default to empty "
"lists."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('func(a, b=c, *d, **e)', mode='eval'), "
"indent=4))\n"
"Expression(\n"
" body=Call(\n"
" func=Name(id='func'),\n"
" args=[\n"
" Name(id='a'),\n"
" Starred(\n"
" value=Name(id='d'))],\n"
" keywords=[\n"
" keyword(\n"
" arg='b',\n"
" value=Name(id='c')),\n"
" keyword(\n"
" value=Name(id='e'))]))"
msgstr ""
msgid ""
"A keyword argument to a function call or class definition. ``arg`` is a raw "
"string of the parameter name, ``value`` is a node to pass in."
msgstr ""
msgid ""
"An expression such as ``a if b else c``. Each field holds a single node, so "
"in the following example, all three are :class:`Name` nodes."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('a if b else c', mode='eval'), indent=4))\n"
"Expression(\n"
" body=IfExp(\n"
" test=Name(id='b'),\n"
" body=Name(id='a'),\n"
" orelse=Name(id='c')))"
msgstr ""
msgid ""
"Attribute access, e.g. ``d.keys``. ``value`` is a node, typically "
"a :class:`Name`. ``attr`` is a bare string giving the name of the attribute, "
"and ``ctx`` is :class:`Load`, :class:`Store` or :class:`Del` according to "
"how the attribute is acted on."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('snake.colour', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Attribute(\n"
" value=Name(id='snake'),\n"
" attr='colour'))"
msgstr ""
msgid ""
"A named expression. This AST node is produced by the assignment expressions "
"operator (also known as the walrus operator). As opposed to "
"the :class:`Assign` node in which the first argument can be multiple nodes, "
"in this case both ``target`` and ``value`` must be single nodes."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('(x := 4)', mode='eval'), indent=4))\n"
"Expression(\n"
" body=NamedExpr(\n"
" target=Name(id='x', ctx=Store()),\n"
" value=Constant(value=4)))"
msgstr ""
msgid "Subscripting"
msgstr ""
msgid ""
"A subscript, such as ``l[1]``. ``value`` is the subscripted object (usually "
"sequence or mapping). ``slice`` is an index, slice or key. It can be "
"a :class:`Tuple` and contain a :class:`Slice`. ``ctx`` "
"is :class:`Load`, :class:`Store` or :class:`Del` according to the action "
"performed with the subscript."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('l[1:2, 3]', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Subscript(\n"
" value=Name(id='l'),\n"
" slice=Tuple(\n"
" elts=[\n"
" Slice(\n"
" lower=Constant(value=1),\n"
" upper=Constant(value=2)),\n"
" Constant(value=3)])))"
msgstr ""
msgid ""
"Regular slicing (on the form ``lower:upper`` or ``lower:upper:step``). Can "
"occur only inside the *slice* field of :class:`Subscript`, either directly "
"or as an element of :class:`Tuple`."
msgstr ""
msgid ""
">>> print(ast.dump(ast.parse('l[1:2]', mode='eval'), indent=4))\n"
"Expression(\n"
" body=Subscript(\n"
" value=Name(id='l'),\n"
" slice=Slice(\n"
" lower=Constant(value=1),\n"
" upper=Constant(value=2))))"
msgstr ""
msgid "Comprehensions"
msgstr ""
msgid ""
"List and set comprehensions, generator expressions, and dictionary "
"comprehensions. ``elt`` (or ``key`` and ``value``) is a single node "
"representing the part that will be evaluated for each item."
msgstr ""
msgid ""
"For dictionary comprehensions using unpacking, for example ``{**item for "
"item in items}``, the expression to be expanded goes in ``key`` and "
"``value`` is ``None``."
msgstr ""
msgid "``generators`` is a list of :class:`comprehension` nodes."