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msgstr ""
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#: ../Doc/reference/expressions.rst:6
msgid "Expressions"
msgstr ""

#: ../Doc/reference/expressions.rst:10
msgid ""
"This chapter explains the meaning of the elements of expressions in Python."
msgstr ""

#: ../Doc/reference/expressions.rst:12
msgid ""
"**Syntax Notes:** In this and the following chapters, extended BNF notation "
"will be used to describe syntax, not lexical analysis.  When (one "
"alternative of) a syntax rule has the form"
msgstr ""

#: ../Doc/reference/expressions.rst:19
msgid ""
"and no semantics are given, the semantics of this form of ``name`` are the "
"same as for ``othername``."
msgstr ""

#: ../Doc/reference/expressions.rst:26
msgid "Arithmetic conversions"
msgstr ""

#: ../Doc/reference/expressions.rst:30
msgid ""
"When a description of an arithmetic operator below uses the phrase \"the "
"numeric arguments are converted to a common type,\" this means that the "
"operator implementation for built-in types works as follows:"
msgstr ""

#: ../Doc/reference/expressions.rst:34
msgid ""
"If either argument is a complex number, the other is converted to complex;"
msgstr ""

#: ../Doc/reference/expressions.rst:36
msgid ""
"otherwise, if either argument is a floating point number, the other is "
"converted to floating point;"
msgstr ""

#: ../Doc/reference/expressions.rst:39
msgid "otherwise, both must be integers and no conversion is necessary."
msgstr ""

#: ../Doc/reference/expressions.rst:41
msgid ""
"Some additional rules apply for certain operators (e.g., a string as a left "
"argument to the '%' operator).  Extensions must define their own conversion "
"behavior."
msgstr ""

#: ../Doc/reference/expressions.rst:49
msgid "Atoms"
msgstr ""

#: ../Doc/reference/expressions.rst:53
msgid ""
"Atoms are the most basic elements of expressions.  The simplest atoms are "
"identifiers or literals.  Forms enclosed in parentheses, brackets or braces "
"are also categorized syntactically as atoms.  The syntax for atoms is:"
msgstr ""

#: ../Doc/reference/expressions.rst:66
msgid "Identifiers (Names)"
msgstr ""

#: ../Doc/reference/expressions.rst:70
msgid ""
"An identifier occurring as an atom is a name.  See section :ref:"
"`identifiers` for lexical definition and section :ref:`naming` for "
"documentation of naming and binding."
msgstr ""

#: ../Doc/reference/expressions.rst:76
msgid ""
"When the name is bound to an object, evaluation of the atom yields that "
"object. When a name is not bound, an attempt to evaluate it raises a :exc:"
"`NameError` exception."
msgstr ""

#: ../Doc/reference/expressions.rst:84
msgid ""
"**Private name mangling:** When an identifier that textually occurs in a "
"class definition begins with two or more underscore characters and does not "
"end in two or more underscores, it is considered a :dfn:`private name` of "
"that class. Private names are transformed to a longer form before code is "
"generated for them.  The transformation inserts the class name, with leading "
"underscores removed and a single underscore inserted, in front of the name.  "
"For example, the identifier ``__spam`` occurring in a class named ``Ham`` "
"will be transformed to ``_Ham__spam``.  This transformation is independent "
"of the syntactical context in which the identifier is used.  If the "
"transformed name is extremely long (longer than 255 characters), "
"implementation defined truncation may happen. If the class name consists "
"only of underscores, no transformation is done."
msgstr ""

#: ../Doc/reference/expressions.rst:100
msgid "Literals"
msgstr ""

#: ../Doc/reference/expressions.rst:104
msgid "Python supports string and bytes literals and various numeric literals:"
msgstr ""

#: ../Doc/reference/expressions.rst:110
msgid ""
"Evaluation of a literal yields an object of the given type (string, bytes, "
"integer, floating point number, complex number) with the given value.  The "
"value may be approximated in the case of floating point and imaginary "
"(complex) literals.  See section :ref:`literals` for details."
msgstr ""

#: ../Doc/reference/expressions.rst:119
msgid ""
"All literals correspond to immutable data types, and hence the object's "
"identity is less important than its value.  Multiple evaluations of literals "
"with the same value (either the same occurrence in the program text or a "
"different occurrence) may obtain the same object or a different object with "
"the same value."
msgstr ""

#: ../Doc/reference/expressions.rst:129
msgid "Parenthesized forms"
msgstr ""

#: ../Doc/reference/expressions.rst:133
msgid ""
"A parenthesized form is an optional expression list enclosed in parentheses:"
msgstr ""

#: ../Doc/reference/expressions.rst:138
msgid ""
"A parenthesized expression list yields whatever that expression list yields: "
"if the list contains at least one comma, it yields a tuple; otherwise, it "
"yields the single expression that makes up the expression list."
msgstr ""

#: ../Doc/reference/expressions.rst:144
msgid ""
"An empty pair of parentheses yields an empty tuple object.  Since tuples are "
"immutable, the rules for literals apply (i.e., two occurrences of the empty "
"tuple may or may not yield the same object)."
msgstr ""

#: ../Doc/reference/expressions.rst:152
msgid ""
"Note that tuples are not formed by the parentheses, but rather by use of the "
"comma operator.  The exception is the empty tuple, for which parentheses "
"*are* required --- allowing unparenthesized \"nothing\" in expressions would "
"cause ambiguities and allow common typos to pass uncaught."
msgstr ""

#: ../Doc/reference/expressions.rst:161
msgid "Displays for lists, sets and dictionaries"
msgstr ""

#: ../Doc/reference/expressions.rst:163
msgid ""
"For constructing a list, a set or a dictionary Python provides special "
"syntax called \"displays\", each of them in two flavors:"
msgstr ""

#: ../Doc/reference/expressions.rst:166
msgid "either the container contents are listed explicitly, or"
msgstr ""

#: ../Doc/reference/expressions.rst:168
msgid ""
"they are computed via a set of looping and filtering instructions, called a :"
"dfn:`comprehension`."
msgstr ""

#: ../Doc/reference/expressions.rst:171
msgid "Common syntax elements for comprehensions are:"
msgstr ""

#: ../Doc/reference/expressions.rst:179
msgid ""
"The comprehension consists of a single expression followed by at least one :"
"keyword:`for` clause and zero or more :keyword:`for` or :keyword:`if` "
"clauses. In this case, the elements of the new container are those that "
"would be produced by considering each of the :keyword:`for` or :keyword:`if` "
"clauses a block, nesting from left to right, and evaluating the expression "
"to produce an element each time the innermost block is reached."
msgstr ""

#: ../Doc/reference/expressions.rst:186
msgid ""
"Note that the comprehension is executed in a separate scope, so names "
"assigned to in the target list don't \"leak\" into the enclosing scope."
msgstr ""

#: ../Doc/reference/expressions.rst:193
msgid "List displays"
msgstr ""

#: ../Doc/reference/expressions.rst:201
msgid ""
"A list display is a possibly empty series of expressions enclosed in square "
"brackets:"
msgstr ""

#: ../Doc/reference/expressions.rst:207
msgid ""
"A list display yields a new list object, the contents being specified by "
"either a list of expressions or a comprehension.  When a comma-separated "
"list of expressions is supplied, its elements are evaluated from left to "
"right and placed into the list object in that order.  When a comprehension "
"is supplied, the list is constructed from the elements resulting from the "
"comprehension."
msgstr ""

#: ../Doc/reference/expressions.rst:217
msgid "Set displays"
msgstr ""

#: ../Doc/reference/expressions.rst:222
msgid ""
"A set display is denoted by curly braces and distinguishable from dictionary "
"displays by the lack of colons separating keys and values:"
msgstr ""

#: ../Doc/reference/expressions.rst:228
msgid ""
"A set display yields a new mutable set object, the contents being specified "
"by either a sequence of expressions or a comprehension.  When a comma-"
"separated list of expressions is supplied, its elements are evaluated from "
"left to right and added to the set object.  When a comprehension is "
"supplied, the set is constructed from the elements resulting from the "
"comprehension."
msgstr ""

#: ../Doc/reference/expressions.rst:234
msgid ""
"An empty set cannot be constructed with ``{}``; this literal constructs an "
"empty dictionary."
msgstr ""

#: ../Doc/reference/expressions.rst:241
msgid "Dictionary displays"
msgstr ""

#: ../Doc/reference/expressions.rst:247
msgid ""
"A dictionary display is a possibly empty series of key/datum pairs enclosed "
"in curly braces:"
msgstr ""

#: ../Doc/reference/expressions.rst:256
msgid "A dictionary display yields a new dictionary object."
msgstr ""

#: ../Doc/reference/expressions.rst:258
msgid ""
"If a comma-separated sequence of key/datum pairs is given, they are "
"evaluated from left to right to define the entries of the dictionary: each "
"key object is used as a key into the dictionary to store the corresponding "
"datum.  This means that you can specify the same key multiple times in the "
"key/datum list, and the final dictionary's value for that key will be the "
"last one given."
msgstr ""

#: ../Doc/reference/expressions.rst:266
msgid ""
"A double asterisk ``**`` denotes :dfn:`dictionary unpacking`. Its operand "
"must be a :term:`mapping`.  Each mapping item is added to the new "
"dictionary.  Later values replace values already set by earlier key/datum "
"pairs and earlier dictionary unpackings."
msgstr ""

#: ../Doc/reference/expressions.rst:271
msgid "Unpacking into dictionary displays, originally proposed by :pep:`448`."
msgstr ""

#: ../Doc/reference/expressions.rst:274
msgid ""
"A dict comprehension, in contrast to list and set comprehensions, needs two "
"expressions separated with a colon followed by the usual \"for\" and \"if\" "
"clauses. When the comprehension is run, the resulting key and value elements "
"are inserted in the new dictionary in the order they are produced."
msgstr ""

#: ../Doc/reference/expressions.rst:282
msgid ""
"Restrictions on the types of the key values are listed earlier in section :"
"ref:`types`.  (To summarize, the key type should be :term:`hashable`, which "
"excludes all mutable objects.)  Clashes between duplicate keys are not "
"detected; the last datum (textually rightmost in the display) stored for a "
"given key value prevails."
msgstr ""

#: ../Doc/reference/expressions.rst:292
msgid "Generator expressions"
msgstr "Générateurs (expressions)"

#: ../Doc/reference/expressions.rst:297
msgid "A generator expression is a compact generator notation in parentheses:"
msgstr ""

#: ../Doc/reference/expressions.rst:302
msgid ""
"A generator expression yields a new generator object.  Its syntax is the "
"same as for comprehensions, except that it is enclosed in parentheses "
"instead of brackets or curly braces."
msgstr ""

#: ../Doc/reference/expressions.rst:306
msgid ""
"Variables used in the generator expression are evaluated lazily when the :"
"meth:`~generator.__next__` method is called for the generator object (in the "
"same fashion as normal generators).  However, the leftmost :keyword:`for` "
"clause is immediately evaluated, so that an error produced by it can be seen "
"before any other possible error in the code that handles the generator "
"expression. Subsequent :keyword:`for` clauses cannot be evaluated "
"immediately since they may depend on the previous :keyword:`for` loop. For "
"example: ``(x*y for x in range(10) for y in bar(x))``."
msgstr ""

#: ../Doc/reference/expressions.rst:315
msgid ""
"The parentheses can be omitted on calls with only one argument.  See "
"section :ref:`calls` for details."
msgstr ""

#: ../Doc/reference/expressions.rst:322
msgid "Yield expressions"
msgstr ""

#: ../Doc/reference/expressions.rst:333
msgid ""
"The yield expression is only used when defining a :term:`generator` function "
"and thus can only be used in the body of a function definition.  Using a "
"yield expression in a function's body causes that function to be a generator."
msgstr ""

#: ../Doc/reference/expressions.rst:337
msgid ""
"When a generator function is called, it returns an iterator known as a "
"generator.  That generator then controls the execution of the generator "
"function. The execution starts when one of the generator's methods is "
"called.  At that time, the execution proceeds to the first yield expression, "
"where it is suspended again, returning the value of :token:`expression_list` "
"to the generator's caller.  By suspended, we mean that all local state is "
"retained, including the current bindings of local variables, the instruction "
"pointer, the internal evaluation stack, and the state of any exception "
"handling.  When the execution is resumed by calling one of the generator's "
"methods, the function can proceed exactly as if the yield expression were "
"just another external call.  The value of the yield expression after "
"resuming depends on the method which resumed the execution.  If :meth:"
"`~generator.__next__` is used (typically via either a :keyword:`for` or the :"
"func:`next` builtin) then the result is :const:`None`.  Otherwise, if :meth:"
"`~generator.send` is used, then the result will be the value passed in to "
"that method."
msgstr ""

#: ../Doc/reference/expressions.rst:356
msgid ""
"All of this makes generator functions quite similar to coroutines; they "
"yield multiple times, they have more than one entry point and their "
"execution can be suspended.  The only difference is that a generator "
"function cannot control where the execution should continue after it yields; "
"the control is always transferred to the generator's caller."
msgstr ""

#: ../Doc/reference/expressions.rst:362
msgid ""
"Yield expressions are allowed anywhere in a :keyword:`try` construct.  If "
"the generator is not resumed before it is finalized (by reaching a zero "
"reference count or by being garbage collected), the generator-iterator's :"
"meth:`~generator.close` method will be called, allowing any pending :keyword:"
"`finally` clauses to execute."
msgstr ""

#: ../Doc/reference/expressions.rst:368
msgid ""
"When ``yield from <expr>`` is used, it treats the supplied expression as a "
"subiterator. All values produced by that subiterator are passed directly to "
"the caller of the current generator's methods. Any values passed in with :"
"meth:`~generator.send` and any exceptions passed in with :meth:`~generator."
"throw` are passed to the underlying iterator if it has the appropriate "
"methods.  If this is not the case, then :meth:`~generator.send` will raise :"
"exc:`AttributeError` or :exc:`TypeError`, while :meth:`~generator.throw` "
"will just raise the passed in exception immediately."
msgstr ""

#: ../Doc/reference/expressions.rst:377
msgid ""
"When the underlying iterator is complete, the :attr:`~StopIteration.value` "
"attribute of the raised :exc:`StopIteration` instance becomes the value of "
"the yield expression. It can be either set explicitly when raising :exc:"
"`StopIteration`, or automatically when the sub-iterator is a generator (by "
"returning a value from the sub-generator)."
msgstr ""

#: ../Doc/reference/expressions.rst:383
msgid "Added ``yield from <expr>`` to delegate control flow to a subiterator."
msgstr ""

#: ../Doc/reference/expressions.rst:386
msgid ""
"The parentheses may be omitted when the yield expression is the sole "
"expression on the right hand side of an assignment statement."
msgstr ""

#: ../Doc/reference/expressions.rst:392
msgid ":pep:`255` - Simple Generators"
msgstr ":pep:`255`: Générateurs simples"

#: ../Doc/reference/expressions.rst:392
msgid ""
"The proposal for adding generators and the :keyword:`yield` statement to "
"Python."
msgstr ""

#: ../Doc/reference/expressions.rst:396
msgid ":pep:`342` - Coroutines via Enhanced Generators"
msgstr ""

#: ../Doc/reference/expressions.rst:395
msgid ""
"The proposal to enhance the API and syntax of generators, making them usable "
"as simple coroutines."
msgstr ""

#: ../Doc/reference/expressions.rst:399
msgid ":pep:`380` - Syntax for Delegating to a Subgenerator"
msgstr ""

#: ../Doc/reference/expressions.rst:399
msgid ""
"The proposal to introduce the :token:`yield_from` syntax, making delegation "
"to sub-generators easy."
msgstr ""

#: ../Doc/reference/expressions.rst:406
msgid "Generator-iterator methods"
msgstr ""

#: ../Doc/reference/expressions.rst:408
msgid ""
"This subsection describes the methods of a generator iterator.  They can be "
"used to control the execution of a generator function."
msgstr ""

#: ../Doc/reference/expressions.rst:411
msgid ""
"Note that calling any of the generator methods below when the generator is "
"already executing raises a :exc:`ValueError` exception."
msgstr ""

#: ../Doc/reference/expressions.rst:419
msgid ""
"Starts the execution of a generator function or resumes it at the last "
"executed yield expression.  When a generator function is resumed with a :"
"meth:`~generator.__next__` method, the current yield expression always "
"evaluates to :const:`None`.  The execution then continues to the next yield "
"expression, where the generator is suspended again, and the value of the :"
"token:`expression_list` is returned to :meth:`__next__`'s caller.  If the "
"generator exits without yielding another value, a :exc:`StopIteration` "
"exception is raised."
msgstr ""

#: ../Doc/reference/expressions.rst:428
msgid ""
"This method is normally called implicitly, e.g. by a :keyword:`for` loop, or "
"by the built-in :func:`next` function."
msgstr ""

#: ../Doc/reference/expressions.rst:434
msgid ""
"Resumes the execution and \"sends\" a value into the generator function.  "
"The *value* argument becomes the result of the current yield expression.  "
"The :meth:`send` method returns the next value yielded by the generator, or "
"raises :exc:`StopIteration` if the generator exits without yielding another "
"value.  When :meth:`send` is called to start the generator, it must be "
"called with :const:`None` as the argument, because there is no yield "
"expression that could receive the value."
msgstr ""

#: ../Doc/reference/expressions.rst:445
msgid ""
"Raises an exception of type ``type`` at the point where the generator was "
"paused, and returns the next value yielded by the generator function.  If "
"the generator exits without yielding another value, a :exc:`StopIteration` "
"exception is raised.  If the generator function does not catch the passed-in "
"exception, or raises a different exception, then that exception propagates "
"to the caller."
msgstr ""

#: ../Doc/reference/expressions.rst:456
msgid ""
"Raises a :exc:`GeneratorExit` at the point where the generator function was "
"paused.  If the generator function then exits gracefully, is already closed, "
"or raises :exc:`GeneratorExit` (by not catching the exception), close "
"returns to its caller.  If the generator yields a value, a :exc:"
"`RuntimeError` is raised.  If the generator raises any other exception, it "
"is propagated to the caller.  :meth:`close` does nothing if the generator "
"has already exited due to an exception or normal exit."
msgstr ""

#: ../Doc/reference/expressions.rst:467
msgid "Examples"
msgstr "Exemples"

#: ../Doc/reference/expressions.rst:469
msgid ""
"Here is a simple example that demonstrates the behavior of generators and "
"generator functions::"
msgstr ""

#: ../Doc/reference/expressions.rst:496
msgid ""
"For examples using ``yield from``, see :ref:`pep-380` in \"What's New in "
"Python.\""
msgstr ""

#: ../Doc/reference/expressions.rst:503
msgid "Primaries"
msgstr ""

#: ../Doc/reference/expressions.rst:507
msgid ""
"Primaries represent the most tightly bound operations of the language. Their "
"syntax is:"
msgstr ""

#: ../Doc/reference/expressions.rst:517
msgid "Attribute references"
msgstr ""

#: ../Doc/reference/expressions.rst:521
msgid "An attribute reference is a primary followed by a period and a name:"
msgstr ""

#: ../Doc/reference/expressions.rst:531
msgid ""
"The primary must evaluate to an object of a type that supports attribute "
"references, which most objects do.  This object is then asked to produce the "
"attribute whose name is the identifier.  This production can be customized "
"by overriding the :meth:`__getattr__` method.  If this attribute is not "
"available, the exception :exc:`AttributeError` is raised.  Otherwise, the "
"type and value of the object produced is determined by the object.  Multiple "
"evaluations of the same attribute reference may yield different objects."
msgstr ""

#: ../Doc/reference/expressions.rst:543
msgid "Subscriptions"
msgstr ""

#: ../Doc/reference/expressions.rst:556
msgid ""
"A subscription selects an item of a sequence (string, tuple or list) or "
"mapping (dictionary) object:"
msgstr ""

#: ../Doc/reference/expressions.rst:562
msgid ""
"The primary must evaluate to an object that supports subscription (lists or "
"dictionaries for example).  User-defined objects can support subscription by "
"defining a :meth:`__getitem__` method."
msgstr ""

#: ../Doc/reference/expressions.rst:566
msgid ""
"For built-in objects, there are two types of objects that support "
"subscription:"
msgstr ""

#: ../Doc/reference/expressions.rst:568
msgid ""
"If the primary is a mapping, the expression list must evaluate to an object "
"whose value is one of the keys of the mapping, and the subscription selects "
"the value in the mapping that corresponds to that key.  (The expression list "
"is a tuple except if it has exactly one item.)"
msgstr ""

#: ../Doc/reference/expressions.rst:573
msgid ""
"If the primary is a sequence, the expression (list) must evaluate to an "
"integer or a slice (as discussed in the following section)."
msgstr ""

#: ../Doc/reference/expressions.rst:576
msgid ""
"The formal syntax makes no special provision for negative indices in "
"sequences; however, built-in sequences all provide a :meth:`__getitem__` "
"method that interprets negative indices by adding the length of the sequence "
"to the index (so that ``x[-1]`` selects the last item of ``x``).  The "
"resulting value must be a nonnegative integer less than the number of items "
"in the sequence, and the subscription selects the item whose index is that "
"value (counting from zero). Since the support for negative indices and "
"slicing occurs in the object's :meth:`__getitem__` method, subclasses "
"overriding this method will need to explicitly add that support."
msgstr ""

#: ../Doc/reference/expressions.rst:590
msgid ""
"A string's items are characters.  A character is not a separate data type "
"but a string of exactly one character."
msgstr ""

#: ../Doc/reference/expressions.rst:597
msgid "Slicings"
msgstr ""

#: ../Doc/reference/expressions.rst:609
msgid ""
"A slicing selects a range of items in a sequence object (e.g., a string, "
"tuple or list).  Slicings may be used as expressions or as targets in "
"assignment or :keyword:`del` statements.  The syntax for a slicing:"
msgstr ""

#: ../Doc/reference/expressions.rst:622
msgid ""
"There is ambiguity in the formal syntax here: anything that looks like an "
"expression list also looks like a slice list, so any subscription can be "
"interpreted as a slicing.  Rather than further complicating the syntax, this "
"is disambiguated by defining that in this case the interpretation as a "
"subscription takes priority over the interpretation as a slicing (this is "
"the case if the slice list contains no proper slice)."
msgstr ""

#: ../Doc/reference/expressions.rst:634
msgid ""
"The semantics for a slicing are as follows.  The primary is indexed (using "
"the same :meth:`__getitem__` method as normal subscription) with a key that "
"is constructed from the slice list, as follows.  If the slice list contains "
"at least one comma, the key is a tuple containing the conversion of the "
"slice items; otherwise, the conversion of the lone slice item is the key.  "
"The conversion of a slice item that is an expression is that expression.  "
"The conversion of a proper slice is a slice object (see section :ref:"
"`types`) whose :attr:`~slice.start`, :attr:`~slice.stop` and :attr:`~slice."
"step` attributes are the values of the expressions given as lower bound, "
"upper bound and stride, respectively, substituting ``None`` for missing "
"expressions."
msgstr ""

#: ../Doc/reference/expressions.rst:655
msgid "Calls"
msgstr "Appels"

#: ../Doc/reference/expressions.rst:657
msgid ""
"A call calls a callable object (e.g., a :term:`function`) with a possibly "
"empty series of :term:`arguments <argument>`:"
msgstr ""

#: ../Doc/reference/expressions.rst:673
msgid ""
"An optional trailing comma may be present after the positional and keyword "
"arguments but does not affect the semantics."
msgstr ""

#: ../Doc/reference/expressions.rst:679
msgid ""
"The primary must evaluate to a callable object (user-defined functions, "
"built-in functions, methods of built-in objects, class objects, methods of "
"class instances, and all objects having a :meth:`__call__` method are "
"callable).  All argument expressions are evaluated before the call is "
"attempted.  Please refer to section :ref:`function` for the syntax of "
"formal :term:`parameter` lists."
msgstr ""

#: ../Doc/reference/expressions.rst:687
msgid ""
"If keyword arguments are present, they are first converted to positional "
"arguments, as follows.  First, a list of unfilled slots is created for the "
"formal parameters.  If there are N positional arguments, they are placed in "
"the first N slots.  Next, for each keyword argument, the identifier is used "
"to determine the corresponding slot (if the identifier is the same as the "
"first formal parameter name, the first slot is used, and so on).  If the "
"slot is already filled, a :exc:`TypeError` exception is raised. Otherwise, "
"the value of the argument is placed in the slot, filling it (even if the "
"expression is ``None``, it fills the slot).  When all arguments have been "
"processed, the slots that are still unfilled are filled with the "
"corresponding default value from the function definition.  (Default values "
"are calculated, once, when the function is defined; thus, a mutable object "
"such as a list or dictionary used as default value will be shared by all "
"calls that don't specify an argument value for the corresponding slot; this "
"should usually be avoided.)  If there are any unfilled slots for which no "
"default value is specified, a :exc:`TypeError` exception is raised.  "
"Otherwise, the list of filled slots is used as the argument list for the "
"call."
msgstr ""

#: ../Doc/reference/expressions.rst:707
msgid ""
"An implementation may provide built-in functions whose positional parameters "
"do not have names, even if they are 'named' for the purpose of "
"documentation, and which therefore cannot be supplied by keyword.  In "
"CPython, this is the case for functions implemented in C that use :c:func:"
"`PyArg_ParseTuple` to parse their arguments."
msgstr ""

#: ../Doc/reference/expressions.rst:713
msgid ""
"If there are more positional arguments than there are formal parameter "
"slots, a :exc:`TypeError` exception is raised, unless a formal parameter "
"using the syntax ``*identifier`` is present; in this case, that formal "
"parameter receives a tuple containing the excess positional arguments (or an "
"empty tuple if there were no excess positional arguments)."
msgstr ""

#: ../Doc/reference/expressions.rst:719
msgid ""
"If any keyword argument does not correspond to a formal parameter name, a :"
"exc:`TypeError` exception is raised, unless a formal parameter using the "
"syntax ``**identifier`` is present; in this case, that formal parameter "
"receives a dictionary containing the excess keyword arguments (using the "
"keywords as keys and the argument values as corresponding values), or a "
"(new) empty dictionary if there were no excess keyword arguments."
msgstr ""

#: ../Doc/reference/expressions.rst:730
msgid ""
"If the syntax ``*expression`` appears in the function call, ``expression`` "
"must evaluate to an :term:`iterable`.  Elements from these iterables are "
"treated as if they were additional positional arguments.  For the call "
"``f(x1, x2, *y, x3, x4)``, if *y* evaluates to a sequence *y1*, ..., *yM*, "
"this is equivalent to a call with M+4 positional arguments *x1*, *x2*, "
"*y1*, ..., *yM*, *x3*, *x4*."
msgstr ""

#: ../Doc/reference/expressions.rst:737
msgid ""
"A consequence of this is that although the ``*expression`` syntax may appear "
"*after* explicit keyword arguments, it is processed *before* the keyword "
"arguments (and any ``**expression`` arguments -- see below).  So::"
msgstr ""

#: ../Doc/reference/expressions.rst:753
msgid ""
"It is unusual for both keyword arguments and the ``*expression`` syntax to "
"be used in the same call, so in practice this confusion does not arise."
msgstr ""

#: ../Doc/reference/expressions.rst:759
msgid ""
"If the syntax ``**expression`` appears in the function call, ``expression`` "
"must evaluate to a :term:`mapping`, the contents of which are treated as "
"additional keyword arguments.  If a keyword is already present (as an "
"explicit keyword argument, or from another unpacking), a :exc:`TypeError` "
"exception is raised."
msgstr ""

#: ../Doc/reference/expressions.rst:765
msgid ""
"Formal parameters using the syntax ``*identifier`` or ``**identifier`` "
"cannot be used as positional argument slots or as keyword argument names."
msgstr ""

#: ../Doc/reference/expressions.rst:768
msgid ""
"Function calls accept any number of ``*`` and ``**`` unpackings, positional "
"arguments may follow iterable unpackings (``*``), and keyword arguments may "
"follow dictionary unpackings (``**``). Originally proposed by :pep:`448`."
msgstr ""

#: ../Doc/reference/expressions.rst:774
msgid ""
"A call always returns some value, possibly ``None``, unless it raises an "
"exception.  How this value is computed depends on the type of the callable "
"object."
msgstr ""

#: ../Doc/reference/expressions.rst:778
msgid "If it is---"
msgstr ""

#: ../Doc/reference/expressions.rst:791
msgid "a user-defined function:"
msgstr ""

#: ../Doc/reference/expressions.rst:787
msgid ""
"The code block for the function is executed, passing it the argument list.  "
"The first thing the code block will do is bind the formal parameters to the "
"arguments; this is described in section :ref:`function`.  When the code "
"block executes a :keyword:`return` statement, this specifies the return "
"value of the function call."
msgstr ""

#: ../Doc/reference/expressions.rst:805
msgid "a built-in function or method:"
msgstr ""

#: ../Doc/reference/expressions.rst:804
msgid ""
"The result is up to the interpreter; see :ref:`built-in-funcs` for the "
"descriptions of built-in functions and methods."
msgstr ""

#: ../Doc/reference/expressions.rst:812
msgid "a class object:"
msgstr ""

#: ../Doc/reference/expressions.rst:812
msgid "A new instance of that class is returned."
msgstr ""

#: ../Doc/reference/expressions.rst:822
msgid "a class instance method:"
msgstr ""

#: ../Doc/reference/expressions.rst:820
msgid ""
"The corresponding user-defined function is called, with an argument list "
"that is one longer than the argument list of the call: the instance becomes "
"the first argument."
msgstr ""

#: ../Doc/reference/expressions.rst:831
msgid "a class instance:"
msgstr ""

#: ../Doc/reference/expressions.rst:829
msgid ""
"The class must define a :meth:`__call__` method; the effect is then the same "
"as if that method was called."
msgstr ""

#: ../Doc/reference/expressions.rst:836 ../Doc/reference/expressions.rst:1537
msgid "Await expression"
msgstr ""

#: ../Doc/reference/expressions.rst:838
msgid ""
"Suspend the execution of :term:`coroutine` on an :term:`awaitable` object. "
"Can only be used inside a :term:`coroutine function`."
msgstr ""

#: ../Doc/reference/expressions.rst:850
msgid "The power operator"
msgstr ""

#: ../Doc/reference/expressions.rst:852
msgid ""
"The power operator binds more tightly than unary operators on its left; it "
"binds less tightly than unary operators on its right.  The syntax is:"
msgstr ""

#: ../Doc/reference/expressions.rst:858
msgid ""
"Thus, in an unparenthesized sequence of power and unary operators, the "
"operators are evaluated from right to left (this does not constrain the "
"evaluation order for the operands): ``-1**2`` results in ``-1``."
msgstr ""

#: ../Doc/reference/expressions.rst:862
msgid ""
"The power operator has the same semantics as the built-in :func:`pow` "
"function, when called with two arguments: it yields its left argument raised "
"to the power of its right argument.  The numeric arguments are first "
"converted to a common type, and the result is of that type."
msgstr ""

#: ../Doc/reference/expressions.rst:867
msgid ""
"For int operands, the result has the same type as the operands unless the "
"second argument is negative; in that case, all arguments are converted to "
"float and a float result is delivered. For example, ``10**2`` returns "
"``100``, but ``10**-2`` returns ``0.01``."
msgstr ""

#: ../Doc/reference/expressions.rst:872
msgid ""
"Raising ``0.0`` to a negative power results in a :exc:`ZeroDivisionError`. "
"Raising a negative number to a fractional power results in a :class:"
"`complex` number. (In earlier versions it raised a :exc:`ValueError`.)"
msgstr ""

#: ../Doc/reference/expressions.rst:880
msgid "Unary arithmetic and bitwise operations"
msgstr ""

#: ../Doc/reference/expressions.rst:886
msgid "All unary arithmetic and bitwise operations have the same priority:"
msgstr ""

#: ../Doc/reference/expressions.rst:895
msgid ""
"The unary ``-`` (minus) operator yields the negation of its numeric argument."
msgstr ""

#: ../Doc/reference/expressions.rst:899
msgid "The unary ``+`` (plus) operator yields its numeric argument unchanged."
msgstr ""

#: ../Doc/reference/expressions.rst:904
msgid ""
"The unary ``~`` (invert) operator yields the bitwise inversion of its "
"integer argument.  The bitwise inversion of ``x`` is defined as ``-(x+1)``.  "
"It only applies to integral numbers."
msgstr ""

#: ../Doc/reference/expressions.rst:910
msgid ""
"In all three cases, if the argument does not have the proper type, a :exc:"
"`TypeError` exception is raised."
msgstr ""

#: ../Doc/reference/expressions.rst:917
msgid "Binary arithmetic operations"
msgstr ""

#: ../Doc/reference/expressions.rst:921
msgid ""
"The binary arithmetic operations have the conventional priority levels.  "
"Note that some of these operations also apply to certain non-numeric types.  "
"Apart from the power operator, there are only two levels, one for "
"multiplicative operators and one for additive operators:"
msgstr ""

#: ../Doc/reference/expressions.rst:934
msgid ""
"The ``*`` (multiplication) operator yields the product of its arguments.  "
"The arguments must either both be numbers, or one argument must be an "
"integer and the other must be a sequence. In the former case, the numbers "
"are converted to a common type and then multiplied together.  In the latter "
"case, sequence repetition is performed; a negative repetition factor yields "
"an empty sequence."
msgstr ""

#: ../Doc/reference/expressions.rst:942
msgid ""
"The ``@`` (at) operator is intended to be used for matrix multiplication.  "
"No builtin Python types implement this operator."
msgstr ""

#: ../Doc/reference/expressions.rst:951
msgid ""
"The ``/`` (division) and ``//`` (floor division) operators yield the "
"quotient of their arguments.  The numeric arguments are first converted to a "
"common type. Division of integers yields a float, while floor division of "
"integers results in an integer; the result is that of mathematical division "
"with the 'floor' function applied to the result.  Division by zero raises "
"the :exc:`ZeroDivisionError` exception."
msgstr ""

#: ../Doc/reference/expressions.rst:960
msgid ""
"The ``%`` (modulo) operator yields the remainder from the division of the "
"first argument by the second.  The numeric arguments are first converted to "
"a common type.  A zero right argument raises the :exc:`ZeroDivisionError` "
"exception.  The arguments may be floating point numbers, e.g., ``3.14%0.7`` "
"equals ``0.34`` (since ``3.14`` equals ``4*0.7 + 0.34``.)  The modulo "
"operator always yields a result with the same sign as its second operand (or "
"zero); the absolute value of the result is strictly smaller than the "
"absolute value of the second operand [#]_."
msgstr ""

#: ../Doc/reference/expressions.rst:969
msgid ""
"The floor division and modulo operators are connected by the following "
"identity: ``x == (x//y)*y + (x%y)``.  Floor division and modulo are also "
"connected with the built-in function :func:`divmod`: ``divmod(x, y) == (x//"
"y, x%y)``. [#]_."
msgstr ""

#: ../Doc/reference/expressions.rst:974
msgid ""
"In addition to performing the modulo operation on numbers, the ``%`` "
"operator is also overloaded by string objects to perform old-style string "
"formatting (also known as interpolation).  The syntax for string formatting "
"is described in the Python Library Reference, section :ref:`old-string-"
"formatting`."
msgstr ""

#: ../Doc/reference/expressions.rst:979
msgid ""
"The floor division operator, the modulo operator, and the :func:`divmod` "
"function are not defined for complex numbers.  Instead, convert to a "
"floating point number using the :func:`abs` function if appropriate."
msgstr ""

#: ../Doc/reference/expressions.rst:985
msgid ""
"The ``+`` (addition) operator yields the sum of its arguments.  The "
"arguments must either both be numbers or both be sequences of the same "
"type.  In the former case, the numbers are converted to a common type and "
"then added together. In the latter case, the sequences are concatenated."
msgstr ""

#: ../Doc/reference/expressions.rst:992
msgid ""
"The ``-`` (subtraction) operator yields the difference of its arguments.  "
"The numeric arguments are first converted to a common type."
msgstr ""

#: ../Doc/reference/expressions.rst:999
msgid "Shifting operations"
msgstr ""

#: ../Doc/reference/expressions.rst:1003
msgid ""
"The shifting operations have lower priority than the arithmetic operations:"
msgstr ""

#: ../Doc/reference/expressions.rst:1008
msgid ""
"These operators accept integers as arguments.  They shift the first argument "
"to the left or right by the number of bits given by the second argument."
msgstr ""

#: ../Doc/reference/expressions.rst:1013
msgid ""
"A right shift by *n* bits is defined as floor division by ``pow(2,n)``.  A "
"left shift by *n* bits is defined as multiplication with ``pow(2,n)``."
msgstr ""

#: ../Doc/reference/expressions.rst:1018
msgid ""
"In the current implementation, the right-hand operand is required to be at "
"most :attr:`sys.maxsize`.  If the right-hand operand is larger than :attr:"
"`sys.maxsize` an :exc:`OverflowError` exception is raised."
msgstr ""

#: ../Doc/reference/expressions.rst:1025
msgid "Binary bitwise operations"
msgstr ""

#: ../Doc/reference/expressions.rst:1029
msgid "Each of the three bitwise operations has a different priority level:"
msgstr ""

#: ../Doc/reference/expressions.rst:1038
msgid ""
"The ``&`` operator yields the bitwise AND of its arguments, which must be "
"integers."
msgstr ""

#: ../Doc/reference/expressions.rst:1045
msgid ""
"The ``^`` operator yields the bitwise XOR (exclusive OR) of its arguments, "
"which must be integers."
msgstr ""

#: ../Doc/reference/expressions.rst:1052
msgid ""
"The ``|`` operator yields the bitwise (inclusive) OR of its arguments, which "
"must be integers."
msgstr ""

#: ../Doc/reference/expressions.rst:1059
msgid "Comparisons"
msgstr "Comparaisons"

#: ../Doc/reference/expressions.rst:1065
msgid ""
"Unlike C, all comparison operations in Python have the same priority, which "
"is lower than that of any arithmetic, shifting or bitwise operation.  Also "
"unlike C, expressions like ``a < b < c`` have the interpretation that is "
"conventional in mathematics:"
msgstr ""

#: ../Doc/reference/expressions.rst:1075
msgid "Comparisons yield boolean values: ``True`` or ``False``."
msgstr ""

#: ../Doc/reference/expressions.rst:1079
msgid ""
"Comparisons can be chained arbitrarily, e.g., ``x < y <= z`` is equivalent "
"to ``x < y and y <= z``, except that ``y`` is evaluated only once (but in "
"both cases ``z`` is not evaluated at all when ``x < y`` is found to be "
"false)."
msgstr ""

#: ../Doc/reference/expressions.rst:1083
msgid ""
"Formally, if *a*, *b*, *c*, ..., *y*, *z* are expressions and *op1*, "
"*op2*, ..., *opN* are comparison operators, then ``a op1 b op2 c ... y opN "
"z`` is equivalent to ``a op1 b and b op2 c and ... y opN z``, except that "
"each expression is evaluated at most once."
msgstr ""

#: ../Doc/reference/expressions.rst:1088
msgid ""
"Note that ``a op1 b op2 c`` doesn't imply any kind of comparison between *a* "
"and *c*, so that, e.g., ``x < y > z`` is perfectly legal (though perhaps not "
"pretty)."
msgstr ""

#: ../Doc/reference/expressions.rst:1093
msgid "Value comparisons"
msgstr ""

#: ../Doc/reference/expressions.rst:1095
msgid ""
"The operators ``<``, ``>``, ``==``, ``>=``, ``<=``, and ``!=`` compare the "
"values of two objects.  The objects do not need to have the same type."
msgstr ""

#: ../Doc/reference/expressions.rst:1098
msgid ""
"Chapter :ref:`objects` states that objects have a value (in addition to type "
"and identity).  The value of an object is a rather abstract notion in "
"Python: For example, there is no canonical access method for an object's "
"value.  Also, there is no requirement that the value of an object should be "
"constructed in a particular way, e.g. comprised of all its data attributes. "
"Comparison operators implement a particular notion of what the value of an "
"object is.  One can think of them as defining the value of an object "
"indirectly, by means of their comparison implementation."
msgstr ""

#: ../Doc/reference/expressions.rst:1107
msgid ""
"Because all types are (direct or indirect) subtypes of :class:`object`, they "
"inherit the default comparison behavior from :class:`object`.  Types can "
"customize their comparison behavior by implementing :dfn:`rich comparison "
"methods` like :meth:`__lt__`, described in :ref:`customization`."
msgstr ""

#: ../Doc/reference/expressions.rst:1113
msgid ""
"The default behavior for equality comparison (``==`` and ``!=``) is based on "
"the identity of the objects.  Hence, equality comparison of instances with "
"the same identity results in equality, and equality comparison of instances "
"with different identities results in inequality.  A motivation for this "
"default behavior is the desire that all objects should be reflexive (i.e. "
"``x is y`` implies ``x == y``)."
msgstr ""

#: ../Doc/reference/expressions.rst:1120
msgid ""
"A default order comparison (``<``, ``>``, ``<=``, and ``>=``) is not "
"provided; an attempt raises :exc:`TypeError`.  A motivation for this default "
"behavior is the lack of a similar invariant as for equality."
msgstr ""

#: ../Doc/reference/expressions.rst:1124
msgid ""
"The behavior of the default equality comparison, that instances with "
"different identities are always unequal, may be in contrast to what types "
"will need that have a sensible definition of object value and value-based "
"equality.  Such types will need to customize their comparison behavior, and "
"in fact, a number of built-in types have done that."
msgstr ""

#: ../Doc/reference/expressions.rst:1130
msgid ""
"The following list describes the comparison behavior of the most important "
"built-in types."
msgstr ""

#: ../Doc/reference/expressions.rst:1133
msgid ""
"Numbers of built-in numeric types (:ref:`typesnumeric`) and of the standard "
"library types :class:`fractions.Fraction` and :class:`decimal.Decimal` can "
"be compared within and across their types, with the restriction that complex "
"numbers do not support order comparison.  Within the limits of the types "
"involved, they compare mathematically (algorithmically) correct without loss "
"of precision."
msgstr ""

#: ../Doc/reference/expressions.rst:1140
msgid ""
"The not-a-number values :const:`float('NaN')` and :const:`Decimal('NaN')` "
"are special.  They are identical to themselves (``x is x`` is true) but are "
"not equal to themselves (``x == x`` is false).  Additionally, comparing any "
"number to a not-a-number value will return ``False``.  For example, both ``3 "
"< float('NaN')`` and ``float('NaN') < 3`` will return ``False``."
msgstr ""

#: ../Doc/reference/expressions.rst:1147
msgid ""
"Binary sequences (instances of :class:`bytes` or :class:`bytearray`) can be "
"compared within and across their types.  They compare lexicographically "
"using the numeric values of their elements."
msgstr ""

#: ../Doc/reference/expressions.rst:1151
msgid ""
"Strings (instances of :class:`str`) compare lexicographically using the "
"numerical Unicode code points (the result of the built-in function :func:"
"`ord`) of their characters. [#]_"
msgstr ""

#: ../Doc/reference/expressions.rst:1155
msgid "Strings and binary sequences cannot be directly compared."
msgstr ""

#: ../Doc/reference/expressions.rst:1157
msgid ""
"Sequences (instances of :class:`tuple`, :class:`list`, or :class:`range`) "
"can be compared only within each of their types, with the restriction that "
"ranges do not support order comparison.  Equality comparison across these "
"types results in unequality, and ordering comparison across these types "
"raises :exc:`TypeError`."
msgstr ""

#: ../Doc/reference/expressions.rst:1163
msgid ""
"Sequences compare lexicographically using comparison of corresponding "
"elements, whereby reflexivity of the elements is enforced."
msgstr ""

#: ../Doc/reference/expressions.rst:1166
msgid ""
"In enforcing reflexivity of elements, the comparison of collections assumes "
"that for a collection element ``x``, ``x == x`` is always true.  Based on "
"that assumption, element identity is compared first, and element comparison "
"is performed only for distinct elements.  This approach yields the same "
"result as a strict element comparison would, if the compared elements are "
"reflexive.  For non-reflexive elements, the result is different than for "
"strict element comparison, and may be surprising:  The non-reflexive not-a-"
"number values for example result in the following comparison behavior when "
"used in a list::"
msgstr ""

#: ../Doc/reference/expressions.rst:1184
msgid ""
"Lexicographical comparison between built-in collections works as follows:"
msgstr ""

#: ../Doc/reference/expressions.rst:1186
msgid ""
"For two collections to compare equal, they must be of the same type, have "
"the same length, and each pair of corresponding elements must compare equal "
"(for example, ``[1,2] == (1,2)`` is false because the type is not the same)."
msgstr ""

#: ../Doc/reference/expressions.rst:1191
msgid ""
"Collections that support order comparison are ordered the same as their "
"first unequal elements (for example, ``[1,2,x] <= [1,2,y]`` has the same "
"value as ``x <= y``).  If a corresponding element does not exist, the "
"shorter collection is ordered first (for example, ``[1,2] < [1,2,3]`` is "
"true)."
msgstr ""

#: ../Doc/reference/expressions.rst:1197
msgid ""
"Mappings (instances of :class:`dict`) compare equal if and only if they have "
"equal `(key, value)` pairs. Equality comparison of the keys and elements "
"enforces reflexivity."
msgstr ""

#: ../Doc/reference/expressions.rst:1201
msgid ""
"Order comparisons (``<``, ``>``, ``<=``, and ``>=``) raise :exc:`TypeError`."
msgstr ""

#: ../Doc/reference/expressions.rst:1203
msgid ""
"Sets (instances of :class:`set` or :class:`frozenset`) can be compared "
"within and across their types."
msgstr ""

#: ../Doc/reference/expressions.rst:1206
msgid ""
"They define order comparison operators to mean subset and superset tests.  "
"Those relations do not define total orderings (for example, the two sets "
"``{1,2}`` and ``{2,3}`` are not equal, nor subsets of one another, nor "
"supersets of one another).  Accordingly, sets are not appropriate arguments "
"for functions which depend on total ordering (for example, :func:`min`, :"
"func:`max`, and :func:`sorted` produce undefined results given a list of "
"sets as inputs)."
msgstr ""

#: ../Doc/reference/expressions.rst:1214
msgid "Comparison of sets enforces reflexivity of its elements."
msgstr ""

#: ../Doc/reference/expressions.rst:1216
msgid ""
"Most other built-in types have no comparison methods implemented, so they "
"inherit the default comparison behavior."
msgstr ""

#: ../Doc/reference/expressions.rst:1219
msgid ""
"User-defined classes that customize their comparison behavior should follow "
"some consistency rules, if possible:"
msgstr ""

#: ../Doc/reference/expressions.rst:1222
msgid ""
"Equality comparison should be reflexive. In other words, identical objects "
"should compare equal:"
msgstr ""

#: ../Doc/reference/expressions.rst:1225
msgid "``x is y`` implies ``x == y``"
msgstr "``x is y`` implique ``x == y``"

#: ../Doc/reference/expressions.rst:1227
msgid ""
"Comparison should be symmetric. In other words, the following expressions "
"should have the same result:"
msgstr ""

#: ../Doc/reference/expressions.rst:1230
msgid "``x == y`` and ``y == x``"
msgstr "``x == y`` et ``y == x``"

#: ../Doc/reference/expressions.rst:1232
msgid "``x != y`` and ``y != x``"
msgstr "``x != y`` et ``y != x``"

#: ../Doc/reference/expressions.rst:1234
msgid "``x < y`` and ``y > x``"
msgstr "``x < y`` et ``y > x``"

#: ../Doc/reference/expressions.rst:1236
msgid "``x <= y`` and ``y >= x``"
msgstr "``x <= y`` et ``y >= x``"

#: ../Doc/reference/expressions.rst:1238
msgid ""
"Comparison should be transitive. The following (non-exhaustive) examples "
"illustrate that:"
msgstr ""

#: ../Doc/reference/expressions.rst:1241
msgid "``x > y and y > z`` implies ``x > z``"
msgstr "``x > y et y > z`` implique ``x > z``"

#: ../Doc/reference/expressions.rst:1243
msgid "``x < y and y <= z`` implies ``x < z``"
msgstr "``x < y et y <= z`` implique ``x < z``"

#: ../Doc/reference/expressions.rst:1245
msgid ""
"Inverse comparison should result in the boolean negation. In other words, "
"the following expressions should have the same result:"
msgstr ""

#: ../Doc/reference/expressions.rst:1248
msgid "``x == y`` and ``not x != y``"
msgstr "``x == y`` et ``not x != y``"

#: ../Doc/reference/expressions.rst:1250
msgid "``x < y`` and ``not x >= y`` (for total ordering)"
msgstr ""

#: ../Doc/reference/expressions.rst:1252
msgid "``x > y`` and ``not x <= y`` (for total ordering)"
msgstr ""

#: ../Doc/reference/expressions.rst:1254
msgid ""
"The last two expressions apply to totally ordered collections (e.g. to "
"sequences, but not to sets or mappings). See also the :func:`~functools."
"total_ordering` decorator."
msgstr ""

#: ../Doc/reference/expressions.rst:1258
msgid ""
"Python does not enforce these consistency rules. In fact, the not-a-number "
"values are an example for not following these rules."
msgstr ""

#: ../Doc/reference/expressions.rst:1267
msgid "Membership test operations"
msgstr ""

#: ../Doc/reference/expressions.rst:1269
msgid ""
"The operators :keyword:`in` and :keyword:`not in` test for membership.  ``x "
"in s`` evaluates to true if *x* is a member of *s*, and false otherwise.  "
"``x not in s`` returns the negation of ``x in s``.  All built-in sequences "
"and set types support this as well as dictionary, for which :keyword:`in` "
"tests whether the dictionary has a given key. For container types such as "
"list, tuple, set, frozenset, dict, or collections.deque, the expression ``x "
"in y`` is equivalent to ``any(x is e or x == e for e in y)``."
msgstr ""

#: ../Doc/reference/expressions.rst:1277
msgid ""
"For the string and bytes types, ``x in y`` is true if and only if *x* is a "
"substring of *y*.  An equivalent test is ``y.find(x) != -1``.  Empty strings "
"are always considered to be a substring of any other string, so ``\"\" in "
"\"abc\"`` will return ``True``."
msgstr ""

#: ../Doc/reference/expressions.rst:1282
msgid ""
"For user-defined classes which define the :meth:`__contains__` method, ``x "
"in y`` is true if and only if ``y.__contains__(x)`` is true."
msgstr ""

#: ../Doc/reference/expressions.rst:1285
msgid ""
"For user-defined classes which do not define :meth:`__contains__` but do "
"define :meth:`__iter__`, ``x in y`` is true if some value ``z`` with ``x == "
"z`` is produced while iterating over ``y``.  If an exception is raised "
"during the iteration, it is as if :keyword:`in` raised that exception."
msgstr ""

#: ../Doc/reference/expressions.rst:1290
msgid ""
"Lastly, the old-style iteration protocol is tried: if a class defines :meth:"
"`__getitem__`, ``x in y`` is true if and only if there is a non-negative "
"integer index *i* such that ``x == y[i]``, and all lower integer indices do "
"not raise :exc:`IndexError` exception.  (If any other exception is raised, "
"it is as if :keyword:`in` raised that exception)."
msgstr ""

#: ../Doc/reference/expressions.rst:1302
msgid ""
"The operator :keyword:`not in` is defined to have the inverse true value of :"
"keyword:`in`."
msgstr ""

#: ../Doc/reference/expressions.rst:1315
msgid "Identity comparisons"
msgstr ""

#: ../Doc/reference/expressions.rst:1317
msgid ""
"The operators :keyword:`is` and :keyword:`is not` test for object identity: "
"``x is y`` is true if and only if *x* and *y* are the same object.  Object "
"identity is determined using the :meth:`id` function.  ``x is not y`` yields "
"the inverse truth value. [#]_"
msgstr ""

#: ../Doc/reference/expressions.rst:1329
msgid "Boolean operations"
msgstr ""

#: ../Doc/reference/expressions.rst:1340
msgid ""
"In the context of Boolean operations, and also when expressions are used by "
"control flow statements, the following values are interpreted as false: "
"``False``, ``None``, numeric zero of all types, and empty strings and "
"containers (including strings, tuples, lists, dictionaries, sets and "
"frozensets).  All other values are interpreted as true.  User-defined "
"objects can customize their truth value by providing a :meth:`__bool__` "
"method."
msgstr ""

#: ../Doc/reference/expressions.rst:1349
msgid ""
"The operator :keyword:`not` yields ``True`` if its argument is false, "
"``False`` otherwise."
msgstr ""

#: ../Doc/reference/expressions.rst:1354
msgid ""
"The expression ``x and y`` first evaluates *x*; if *x* is false, its value "
"is returned; otherwise, *y* is evaluated and the resulting value is returned."
msgstr ""

#: ../Doc/reference/expressions.rst:1359
msgid ""
"The expression ``x or y`` first evaluates *x*; if *x* is true, its value is "
"returned; otherwise, *y* is evaluated and the resulting value is returned."
msgstr ""

#: ../Doc/reference/expressions.rst:1362
msgid ""
"(Note that neither :keyword:`and` nor :keyword:`or` restrict the value and "
"type they return to ``False`` and ``True``, but rather return the last "
"evaluated argument.  This is sometimes useful, e.g., if ``s`` is a string "
"that should be replaced by a default value if it is empty, the expression "
"``s or 'foo'`` yields the desired value.  Because :keyword:`not` has to "
"create a new value, it returns a boolean value regardless of the type of its "
"argument (for example, ``not 'foo'`` produces ``False`` rather than ``''``.)"
msgstr ""

#: ../Doc/reference/expressions.rst:1372
msgid "Conditional expressions"
msgstr ""

#: ../Doc/reference/expressions.rst:1383
msgid ""
"Conditional expressions (sometimes called a \"ternary operator\") have the "
"lowest priority of all Python operations."
msgstr ""

#: ../Doc/reference/expressions.rst:1386
msgid ""
"The expression ``x if C else y`` first evaluates the condition, *C* rather "
"than *x*. If *C* is true, *x* is evaluated and its value is returned; "
"otherwise, *y* is evaluated and its value is returned."
msgstr ""

#: ../Doc/reference/expressions.rst:1390
msgid "See :pep:`308` for more details about conditional expressions."
msgstr ""

#: ../Doc/reference/expressions.rst:1397
msgid "Lambdas"
msgstr ""

#: ../Doc/reference/expressions.rst:1408
msgid ""
"Lambda expressions (sometimes called lambda forms) are used to create "
"anonymous functions. The expression ``lambda arguments: expression`` yields "
"a function object.  The unnamed object behaves like a function object "
"defined with:"
msgstr ""

#: ../Doc/reference/expressions.rst:1417
msgid ""
"See section :ref:`function` for the syntax of parameter lists.  Note that "
"functions created with lambda expressions cannot contain statements or "
"annotations."
msgstr ""

#: ../Doc/reference/expressions.rst:1425
msgid "Expression lists"
msgstr ""

#: ../Doc/reference/expressions.rst:1437
msgid ""
"Except when part of a list or set display, an expression list containing at "
"least one comma yields a tuple.  The length of the tuple is the number of "
"expressions in the list.  The expressions are evaluated from left to right."
msgstr ""

#: ../Doc/reference/expressions.rst:1446
msgid ""
"An asterisk ``*`` denotes :dfn:`iterable unpacking`.  Its operand must be "
"an :term:`iterable`.  The iterable is expanded into a sequence of items, "
"which are included in the new tuple, list, or set, at the site of the "
"unpacking."
msgstr ""

#: ../Doc/reference/expressions.rst:1451
msgid ""
"Iterable unpacking in expression lists, originally proposed by :pep:`448`."
msgstr ""

#: ../Doc/reference/expressions.rst:1456
msgid ""
"The trailing comma is required only to create a single tuple (a.k.a. a "
"*singleton*); it is optional in all other cases.  A single expression "
"without a trailing comma doesn't create a tuple, but rather yields the value "
"of that expression. (To create an empty tuple, use an empty pair of "
"parentheses: ``()``.)"
msgstr ""

#: ../Doc/reference/expressions.rst:1466
msgid "Evaluation order"
msgstr ""

#: ../Doc/reference/expressions.rst:1470
msgid ""
"Python evaluates expressions from left to right.  Notice that while "
"evaluating an assignment, the right-hand side is evaluated before the left-"
"hand side."
msgstr ""

#: ../Doc/reference/expressions.rst:1473
msgid ""
"In the following lines, expressions will be evaluated in the arithmetic "
"order of their suffixes::"
msgstr ""

#: ../Doc/reference/expressions.rst:1487
msgid "Operator precedence"
msgstr ""

#: ../Doc/reference/expressions.rst:1491
msgid ""
"The following table summarizes the operator precedence in Python, from "
"lowest precedence (least binding) to highest precedence (most binding).  "
"Operators in the same box have the same precedence.  Unless the syntax is "
"explicitly given, operators are binary.  Operators in the same box group "
"left to right (except for exponentiation, which groups from right to left)."
msgstr ""

#: ../Doc/reference/expressions.rst:1497
msgid ""
"Note that comparisons, membership tests, and identity tests, all have the "
"same precedence and have a left-to-right chaining feature as described in "
"the :ref:`comparisons` section."
msgstr ""

#: ../Doc/reference/expressions.rst:1503
msgid "Operator"
msgstr ""

#: ../Doc/reference/expressions.rst:1503
msgid "Description"
msgstr "Description"

#: ../Doc/reference/expressions.rst:1505
msgid ":keyword:`lambda`"
msgstr ""

#: ../Doc/reference/expressions.rst:1505
msgid "Lambda expression"
msgstr "Expression lambda"

#: ../Doc/reference/expressions.rst:1507
msgid ":keyword:`if` -- :keyword:`else`"
msgstr ""

#: ../Doc/reference/expressions.rst:1507
msgid "Conditional expression"
msgstr ""

#: ../Doc/reference/expressions.rst:1509
msgid ":keyword:`or`"
msgstr ""

#: ../Doc/reference/expressions.rst:1509
msgid "Boolean OR"
msgstr ""

#: ../Doc/reference/expressions.rst:1511
msgid ":keyword:`and`"
msgstr ""

#: ../Doc/reference/expressions.rst:1511
msgid "Boolean AND"
msgstr ""

#: ../Doc/reference/expressions.rst:1513
msgid ":keyword:`not` ``x``"
msgstr ""

#: ../Doc/reference/expressions.rst:1513
msgid "Boolean NOT"
msgstr ""

#: ../Doc/reference/expressions.rst:1515
msgid ""
":keyword:`in`, :keyword:`not in`, :keyword:`is`, :keyword:`is not`, ``<``, "
"``<=``, ``>``, ``>=``, ``!=``, ``==``"
msgstr ""

#: ../Doc/reference/expressions.rst:1515
msgid "Comparisons, including membership tests and identity tests"
msgstr ""

#: ../Doc/reference/expressions.rst:1519
msgid "``|``"
msgstr ""

#: ../Doc/reference/expressions.rst:1519
msgid "Bitwise OR"
msgstr ""

#: ../Doc/reference/expressions.rst:1521
msgid "``^``"
msgstr ""

#: ../Doc/reference/expressions.rst:1521
msgid "Bitwise XOR"
msgstr ""

#: ../Doc/reference/expressions.rst:1523
msgid "``&``"
msgstr ""

#: ../Doc/reference/expressions.rst:1523
msgid "Bitwise AND"
msgstr ""

#: ../Doc/reference/expressions.rst:1525
msgid "``<<``, ``>>``"
msgstr "``<<``, ``>>``"

#: ../Doc/reference/expressions.rst:1525
msgid "Shifts"
msgstr ""

#: ../Doc/reference/expressions.rst:1527
msgid "``+``, ``-``"
msgstr "``+``, ``-``"

#: ../Doc/reference/expressions.rst:1527
msgid "Addition and subtraction"
msgstr ""

#: ../Doc/reference/expressions.rst:1529
msgid "``*``, ``@``, ``/``, ``//``, ``%``"
msgstr "``*``, ``@``, ``/``, ``//``, ``%``"

#: ../Doc/reference/expressions.rst:1529
msgid "Multiplication, matrix multiplication division, remainder [#]_"
msgstr ""

#: ../Doc/reference/expressions.rst:1533
msgid "``+x``, ``-x``, ``~x``"
msgstr "``+x``, ``-x``, ``~x``"

#: ../Doc/reference/expressions.rst:1533
msgid "Positive, negative, bitwise NOT"
msgstr ""

#: ../Doc/reference/expressions.rst:1535
msgid "``**``"
msgstr ""

#: ../Doc/reference/expressions.rst:1535
msgid "Exponentiation [#]_"
msgstr ""

#: ../Doc/reference/expressions.rst:1537
msgid "``await`` ``x``"
msgstr "``await`` ``x``"

#: ../Doc/reference/expressions.rst:1539
msgid "``x[index]``, ``x[index:index]``, ``x(arguments...)``, ``x.attribute``"
msgstr ""

#: ../Doc/reference/expressions.rst:1539
msgid "Subscription, slicing, call, attribute reference"
msgstr ""

#: ../Doc/reference/expressions.rst:1542
msgid ""
"``(expressions...)``, ``[expressions...]``, ``{key: value...}``, "
"``{expressions...}``"
msgstr ""

#: ../Doc/reference/expressions.rst:1542
msgid "Binding or tuple display, list display, dictionary display, set display"
msgstr ""

#: ../Doc/reference/expressions.rst:1550
msgid "Footnotes"
msgstr "Notes"

#: ../Doc/reference/expressions.rst:1551
msgid ""
"While ``abs(x%y) < abs(y)`` is true mathematically, for floats it may not be "
"true numerically due to roundoff.  For example, and assuming a platform on "
"which a Python float is an IEEE 754 double-precision number, in order that "
"``-1e-100 % 1e100`` have the same sign as ``1e100``, the computed result is "
"``-1e-100 + 1e100``, which is numerically exactly equal to ``1e100``.  The "
"function :func:`math.fmod` returns a result whose sign matches the sign of "
"the first argument instead, and so returns ``-1e-100`` in this case. Which "
"approach is more appropriate depends on the application."
msgstr ""

#: ../Doc/reference/expressions.rst:1560
msgid ""
"If x is very close to an exact integer multiple of y, it's possible for ``x//"
"y`` to be one larger than ``(x-x%y)//y`` due to rounding.  In such cases, "
"Python returns the latter result, in order to preserve that ``divmod(x,y)[0] "
"* y + x % y`` be very close to ``x``."
msgstr ""

#: ../Doc/reference/expressions.rst:1565
msgid ""
"The Unicode standard distinguishes between :dfn:`code points` (e.g. U+0041) "
"and :dfn:`abstract characters` (e.g. \"LATIN CAPITAL LETTER A\"). While most "
"abstract characters in Unicode are only represented using one code point, "
"there is a number of abstract characters that can in addition be represented "
"using a sequence of more than one code point.  For example, the abstract "
"character \"LATIN CAPITAL LETTER C WITH CEDILLA\" can be represented as a "
"single :dfn:`precomposed character` at code position U+00C7, or as a "
"sequence of a :dfn:`base character` at code position U+0043 (LATIN CAPITAL "
"LETTER C), followed by a :dfn:`combining character` at code position U+0327 "
"(COMBINING CEDILLA)."
msgstr ""

#: ../Doc/reference/expressions.rst:1576
msgid ""
"The comparison operators on strings compare at the level of Unicode code "
"points. This may be counter-intuitive to humans.  For example, ``\"\\u00C7\" "
"== \"\\u0043\\u0327\"`` is ``False``, even though both strings represent the "
"same abstract character \"LATIN CAPITAL LETTER C WITH CEDILLA\"."
msgstr ""

#: ../Doc/reference/expressions.rst:1581
msgid ""
"To compare strings at the level of abstract characters (that is, in a way "
"intuitive to humans), use :func:`unicodedata.normalize`."
msgstr ""

#: ../Doc/reference/expressions.rst:1584
msgid ""
"Due to automatic garbage-collection, free lists, and the dynamic nature of "
"descriptors, you may notice seemingly unusual behaviour in certain uses of "
"the :keyword:`is` operator, like those involving comparisons between "
"instance methods, or constants.  Check their documentation for more info."
msgstr ""

#: ../Doc/reference/expressions.rst:1589
msgid ""
"The ``%`` operator is also used for string formatting; the same precedence "
"applies."
msgstr ""

#: ../Doc/reference/expressions.rst:1592
msgid ""
"The power operator ``**`` binds less tightly than an arithmetic or bitwise "
"unary operator on its right, that is, ``2**-1`` is ``0.5``."
msgstr ""
