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#
SOME DESCRIPTIVE TITLE.
#
Copyright (C) 2001-2022, Python Software Foundation
#
This file is distributed under the same license as the Python package.
#
#
Translators:
msgid ""
msgstr ""
"
Project-Id-Version
:
Python 3.10\n
"
"
Report-Msgid-Bugs-To
:
\n
"
"
POT-Creation-Date
:
2021-12-20 00:10+0000\n
"
"
PO-Revision-Date
:
2018-05-23 16:17+0000\n
"
"
Last-Translator
:
Adrian Liaw <adrianliaw2000@gmail.com>\n
"
"
Language-Team
:
Chinese - TAIWAN (https://github.com/python/python-docs-zh-
"
"
tw)\n
"
"
Language
:
zh_TW\n
"
"
MIME-Version
:
1.0\n
"
"
Content-Type
:
text/plain; charset=UTF-8\n
"
"
Content-Transfer-Encoding
:
8bit\n
"
"
Plural-Forms
:
nplurals=1; plural=0;\n
"
#:
../../reference/datamodel.rst:6
msgid
"Data model"
msgstr
""
#:
../../reference/datamodel.rst:12
msgid
"Objects, values and types"
msgstr
""
#:
../../reference/datamodel.rst:18
msgid
""
":dfn:`Objects` are Python's abstraction for data. All data in a Python "
"program is represented by objects or by relations between objects. (In a "
"sense, and in conformance to Von Neumann's model of a
\"
stored program "
"computer
\"
, code is also represented by objects.)"
msgstr
""
#:
../../reference/datamodel.rst:35
msgid
""
"Every object has an identity, a type and a value. An object's *identity* "
"never changes once it has been created; you may think of it as the object's "
"address in memory. The ':keyword:`is`' operator compares the identity of "
"two objects; the :func:`id` function returns an integer representing its "
"identity."
msgstr
""
#:
../../reference/datamodel.rst:42
msgid
"For CPython, ``id(x)`` is the memory address where ``x`` is stored."
msgstr
""
#:
../../reference/datamodel.rst:44
msgid
""
"An object's type determines the operations that the object supports (e.g., "
"
\"
does it have a length?
\"
) and also defines the possible values for objects "
"of that type. The :func:`type` function returns an object's type (which is "
"an object itself). Like its identity, an object's :dfn:`type` is also "
"unchangeable. [#]_"
msgstr
""
#:
../../reference/datamodel.rst:50
msgid
""
"The *value* of some objects can change. Objects whose value can change are "
"said to be *mutable*; objects whose value is unchangeable once they are "
"created are called *immutable*. (The value of an immutable container object "
"that contains a reference to a mutable object can change when the latter's "
"value is changed; however the container is still considered immutable, "
"because the collection of objects it contains cannot be changed. So, "
"immutability is not strictly the same as having an unchangeable value, it is "
"more subtle.) An object's mutability is determined by its type; for "
"instance, numbers, strings and tuples are immutable, while dictionaries and "
"lists are mutable."
msgstr
""
#:
../../reference/datamodel.rst:65
msgid
""
"Objects are never explicitly destroyed; however, when they become "
"unreachable they may be garbage-collected. An implementation is allowed to "
"postpone garbage collection or omit it altogether --- it is a matter of "
"implementation quality how garbage collection is implemented, as long as no "
"objects are collected that are still reachable."
msgstr
""
#:
../../reference/datamodel.rst:73
msgid
""
"CPython currently uses a reference-counting scheme with (optional) delayed "
"detection of cyclically linked garbage, which collects most objects as soon "
"as they become unreachable, but is not guaranteed to collect garbage "
"containing circular references. See the documentation of the :mod:`gc` "
"module for information on controlling the collection of cyclic garbage. "
"Other implementations act differently and CPython may change. Do not depend "
"on immediate finalization of objects when they become unreachable (so you "
"should always close files explicitly)."
msgstr
""
#:
../../reference/datamodel.rst:82
msgid
""
"Note that the use of the implementation's tracing or debugging facilities "
"may keep objects alive that would normally be collectable. Also note that "
"catching an exception with a ':keyword:`try`...
\\
:keyword:`except`' "
"statement may keep objects alive."
msgstr
""
#:
../../reference/datamodel.rst:87
msgid
""
"Some objects contain references to
\"
external
\"
resources such as open files "
"or windows. It is understood that these resources are freed when the object "
"is garbage-collected, but since garbage collection is not guaranteed to "
"happen, such objects also provide an explicit way to release the external "
"resource, usually a :meth:`close` method. Programs are strongly recommended "
"to explicitly close such objects. The ':keyword:`try`...
\\
:keyword:"
"`finally`' statement and the ':keyword:`with`' statement provide convenient "
"ways to do this."
msgstr
""
#:
../../reference/datamodel.rst:97
msgid
""
"Some objects contain references to other objects; these are called "
"*containers*. Examples of containers are tuples, lists and dictionaries. "
"The references are part of a container's value. In most cases, when we talk "
"about the value of a container, we imply the values, not the identities of "
"the contained objects; however, when we talk about the mutability of a "
"container, only the identities of the immediately contained objects are "
"implied. So, if an immutable container (like a tuple) contains a reference "
"to a mutable object, its value changes if that mutable object is changed."
msgstr
""
#:
../../reference/datamodel.rst:106
msgid
""
"Types affect almost all aspects of object behavior. Even the importance of "
"object identity is affected in some sense: for immutable types, operations "
"that compute new values may actually return a reference to any existing "
"object with the same type and value, while for mutable objects this is not "
"allowed. E.g., after ``a = 1; b = 1``, ``a`` and ``b`` may or may not refer "
"to the same object with the value one, depending on the implementation, but "
"after ``c = []; d = []``, ``c`` and ``d`` are guaranteed to refer to two "
"different, unique, newly created empty lists. (Note that ``c = d = []`` "
"assigns the same object to both ``c`` and ``d``.)"
msgstr
""
#:
../../reference/datamodel.rst:120
msgid
"The standard type hierarchy"
msgstr
""
#:
../../reference/datamodel.rst:129
msgid
""
"Below is a list of the types that are built into Python. Extension modules "
"(written in C, Java, or other languages, depending on the implementation) "
"can define additional types. Future versions of Python may add types to the "
"type hierarchy (e.g., rational numbers, efficiently stored arrays of "
"integers, etc.), although such additions will often be provided via the "
"standard library instead."
msgstr
""
#:
../../reference/datamodel.rst:140
msgid
""
"Some of the type descriptions below contain a paragraph listing 'special "
"attributes.' These are attributes that provide access to the implementation "
"and are not intended for general use. Their definition may change in the "
"future."
msgstr
""
#:
../../reference/datamodel.rst:150
msgid
"None"
msgstr
""
#:
../../reference/datamodel.rst:147
msgid
""
"This type has a single value. There is a single object with this value. "
"This object is accessed through the built-in name ``None``. It is used to "
"signify the absence of a value in many situations, e.g., it is returned from "
"functions that don't explicitly return anything. Its truth value is false."
msgstr
""
#:
../../reference/datamodel.rst:170
msgid
"NotImplemented"
msgstr
"NotImplemented"
#:
../../reference/datamodel.rst:155
msgid
""
"This type has a single value. There is a single object with this value. "
"This object is accessed through the built-in name ``NotImplemented``. "
"Numeric methods and rich comparison methods should return this value if they "
"do not implement the operation for the operands provided. (The interpreter "
"will then try the reflected operation, or some other fallback, depending on "
"the operator.) It should not be evaluated in a boolean context."
msgstr
""
#:
../../reference/datamodel.rst:162
msgid
"See :ref:`implementing-the-arithmetic-operations` for more details."
msgstr
"更多細節請見 :ref:`implementing-the-arithmetic-operations`
\\
。"
#:
../../reference/datamodel.rst:166
msgid
""
"Evaluating ``NotImplemented`` in a boolean context is deprecated. While it "
"currently evaluates as true, it will emit a :exc:`DeprecationWarning`. It "
"will raise a :exc:`TypeError` in a future version of Python."
msgstr
""
#:
../../reference/datamodel.rst:179
msgid
"Ellipsis"
msgstr
""
#:
../../reference/datamodel.rst:177
msgid
""
"This type has a single value. There is a single object with this value. "
"This object is accessed through the literal ``...`` or the built-in name "
"``Ellipsis``. Its truth value is true."
msgstr
""
#:
../../reference/datamodel.rst:266
msgid
":class:`numbers.Number`"
msgstr
":class:`numbers.Number`"
#:
../../reference/datamodel.rst:184
msgid
""
"These are created by numeric literals and returned as results by arithmetic "
"operators and arithmetic built-in functions. Numeric objects are immutable; "
"once created their value never changes. Python numbers are of course "
"strongly related to mathematical numbers, but subject to the limitations of "
"numerical representation in computers."
msgstr
""
#:
../../reference/datamodel.rst:190
msgid
""
"The string representations of the numeric classes, computed by :meth:"
"`~object.__repr__` and :meth:`~object.__str__`, have the following "
"properties:"
msgstr
""
#:
../../reference/datamodel.rst:194
msgid
""
"They are valid numeric literals which, when passed to their class "
"constructor, produce an object having the value of the original numeric."
msgstr
""
#:
../../reference/datamodel.rst:198
msgid
"The representation is in base 10, when possible."
msgstr
""
#:
../../reference/datamodel.rst:200
msgid
""
"Leading zeros, possibly excepting a single zero before a decimal point, are "
"not shown."
msgstr
""
#:
../../reference/datamodel.rst:203
msgid
""
"Trailing zeros, possibly excepting a single zero after a decimal point, are "
"not shown."
msgstr
""
#:
../../reference/datamodel.rst:206
msgid
"A sign is shown only when the number is negative."
msgstr
""
#:
../../reference/datamodel.rst:208
msgid
""
"Python distinguishes between integers, floating point numbers, and complex "
"numbers:"
msgstr
""
#:
../../reference/datamodel.rst:241
msgid
":class:`numbers.Integral`"
msgstr
":class:`numbers.Integral`"
#:
../../reference/datamodel.rst:214
msgid
""
"These represent elements from the mathematical set of integers (positive and "
"negative)."
msgstr
""
#:
../../reference/datamodel.rst:217
msgid
"There are two types of integers:"
msgstr
""
#:
../../reference/datamodel.rst:224
msgid
"Integers (:class:`int`)"
msgstr
""
#:
../../reference/datamodel.rst:220
msgid
""
"These represent numbers in an unlimited range, subject to available "
"(virtual) memory only. For the purpose of shift and mask operations, a "
"binary representation is assumed, and negative numbers are represented in a "
"variant of 2's complement which gives the illusion of an infinite string of "
"sign bits extending to the left."
msgstr
""
#:
../../reference/datamodel.rst:236
msgid
"Booleans (:class:`bool`)"
msgstr
""
#:
../../reference/datamodel.rst:232
msgid
""
"These represent the truth values False and True. The two objects "
"representing the values ``False`` and ``True`` are the only Boolean objects. "
"The Boolean type is a subtype of the integer type, and Boolean values behave "
"like the values 0 and 1, respectively, in almost all contexts, the exception "
"being that when converted to a string, the strings ``
\"
False
\"
`` or ``
\"
True"
"
\"
`` are returned, respectively."
msgstr
""
#:
../../reference/datamodel.rst:240
msgid
""
"The rules for integer representation are intended to give the most "
"meaningful interpretation of shift and mask operations involving negative "
"integers."
msgstr
""
#:
../../reference/datamodel.rst:256
msgid
":class:`numbers.Real` (:class:`float`)"
msgstr
":class:`numbers.Real` (:class:`float`)"
#:
../../reference/datamodel.rst:250
msgid
""
"These represent machine-level double precision floating point numbers. You "
"are at the mercy of the underlying machine architecture (and C or Java "
"implementation) for the accepted range and handling of overflow. Python does "
"not support single-precision floating point numbers; the savings in "
"processor and memory usage that are usually the reason for using these are "
"dwarfed by the overhead of using objects in Python, so there is no reason to "
"complicate the language with two kinds of floating point numbers."
msgstr
""
#:
../../reference/datamodel.rst:266
msgid
":class:`numbers.Complex` (:class:`complex`)"
msgstr
":class:`numbers.Complex` (:class:`complex`)"
#:
../../reference/datamodel.rst:263
msgid
""
"These represent complex numbers as a pair of machine-level double precision "
"floating point numbers. The same caveats apply as for floating point "
"numbers. The real and imaginary parts of a complex number ``z`` can be "
"retrieved through the read-only attributes ``z.real`` and ``z.imag``."
msgstr
""
#:
../../reference/datamodel.rst:383
msgid
"Sequences"
msgstr
""
#:
../../reference/datamodel.rst:276
msgid
""
"These represent finite ordered sets indexed by non-negative numbers. The "
"built-in function :func:`len` returns the number of items of a sequence. "
"When the length of a sequence is *n*, the index set contains the numbers 0, "
"1, ..., *n*-1. Item *i* of sequence *a* is selected by ``a[i]``."
msgstr
""
#:
../../reference/datamodel.rst:283
msgid
""
"Sequences also support slicing: ``a[i:j]`` selects all items with index *k* "
"such that *i* ``<=`` *k* ``<`` *j*. When used as an expression, a slice is "
"a sequence of the same type. This implies that the index set is renumbered "
"so that it starts at 0."
msgstr
""
#:
../../reference/datamodel.rst:288
msgid
""
"Some sequences also support
\"
extended slicing
\"
with a third
\"
step
\"
"
"parameter: ``a[i:j:k]`` selects all items of *a* with index *x* where ``x = "
"i + n*k``, *n* ``>=`` ``0`` and *i* ``<=`` *x* ``<`` *j*."
msgstr
""
#:
../../reference/datamodel.rst:292
msgid
"Sequences are distinguished according to their mutability:"
msgstr
""
#:
../../reference/datamodel.rst:349
msgid
"Immutable sequences"
msgstr
""
#:
../../reference/datamodel.rst:299
msgid
""
"An object of an immutable sequence type cannot change once it is created. "
"(If the object contains references to other objects, these other objects may "
"be mutable and may be changed; however, the collection of objects directly "
"referenced by an immutable object cannot change.)"
msgstr
""
#:
../../reference/datamodel.rst:304
msgid
"The following types are immutable sequences:"
msgstr
""
#:
../../reference/datamodel.rst:327
msgid
"Strings"
msgstr
"字串 (String)"
#:
../../reference/datamodel.rst:317
msgid
""
"A string is a sequence of values that represent Unicode code points. All the "
"code points in the range ``U+0000 - U+10FFFF`` can be represented in a "
"string. Python doesn't have a :c:type:`char` type; instead, every code "
"point in the string is represented as a string object with length ``1``. "
"The built-in function :func:`ord` converts a code point from its string form "
"to an integer in the range ``0 - 10FFFF``; :func:`chr` converts an integer "
"in the range ``0 - 10FFFF`` to the corresponding length ``1`` string "
"object. :meth:`str.encode` can be used to convert a :class:`str` to :class:"
"`bytes` using the given text encoding, and :meth:`bytes.decode` can be used "
"to achieve the opposite."
msgstr
""
#:
../../reference/datamodel.rst:340
msgid
"Tuples"
msgstr
""
#:
../../reference/datamodel.rst:335
msgid
""
"The items of a tuple are arbitrary Python objects. Tuples of two or more "
"items are formed by comma-separated lists of expressions. A tuple of one "
"item (a 'singleton') can be formed by affixing a comma to an expression (an "
"expression by itself does not create a tuple, since parentheses must be "
"usable for grouping of expressions). An empty tuple can be formed by an "
"empty pair of parentheses."
msgstr
""
#:
../../reference/datamodel.rst:349
msgid
"Bytes"
msgstr
""
#:
../../reference/datamodel.rst:345
msgid
""
"A bytes object is an immutable array. The items are 8-bit bytes, "
"represented by integers in the range 0 <= x < 256. Bytes literals (like "
"``b'abc'``) and the built-in :func:`bytes()` constructor can be used to "
"create bytes objects. Also, bytes objects can be decoded to strings via "
"the :meth:`~bytes.decode` method."
msgstr
""
#:
../../reference/datamodel.rst:383
msgid
"Mutable sequences"
msgstr
""
#:
../../reference/datamodel.rst:359
msgid
""
"Mutable sequences can be changed after they are created. The subscription "
"and slicing notations can be used as the target of assignment and :keyword:"
"`del` (delete) statements."
msgstr
""
#:
../../reference/datamodel.rst:363
msgid
"There are currently two intrinsic mutable sequence types:"
msgstr
""
#:
../../reference/datamodel.rst:370
msgid
"Lists"
msgstr
"List（串列）"
#:
../../reference/datamodel.rst:368
msgid
""
"The items of a list are arbitrary Python objects. Lists are formed by "
"placing a comma-separated list of expressions in square brackets. (Note that "
"there are no special cases needed to form lists of length 0 or 1.)"
msgstr
""
#:
../../reference/datamodel.rst:378
msgid
"Byte Arrays"
msgstr
""
#:
../../reference/datamodel.rst:375
msgid
""
"A bytearray object is a mutable array. They are created by the built-in :"
"func:`bytearray` constructor. Aside from being mutable (and hence "
"unhashable), byte arrays otherwise provide the same interface and "
"functionality as immutable :class:`bytes` objects."
msgstr
""
#:
../../reference/datamodel.rst:382
msgid
""
"The extension module :mod:`array` provides an additional example of a "
"mutable sequence type, as does the :mod:`collections` module."
msgstr
""
#:
../../reference/datamodel.rst:417
msgid
"Set types"
msgstr
""
#:
../../reference/datamodel.rst:390
msgid
""
"These represent unordered, finite sets of unique, immutable objects. As "
"such, they cannot be indexed by any subscript. However, they can be iterated "
"over, and the built-in function :func:`len` returns the number of items in a "
"set. Common uses for sets are fast membership testing, removing duplicates "
"from a sequence, and computing mathematical operations such as intersection, "
"union, difference, and symmetric difference."
msgstr
""
#:
../../reference/datamodel.rst:397
msgid
""
"For set elements, the same immutability rules apply as for dictionary keys. "
"Note that numeric types obey the normal rules for numeric comparison: if two "
"numbers compare equal (e.g., ``1`` and ``1.0``), only one of them can be "
"contained in a set."
msgstr
""
#:
../../reference/datamodel.rst:402
msgid
"There are currently two intrinsic set types:"
msgstr
""
#:
../../reference/datamodel.rst:409
msgid
"Sets"
msgstr
""
#:
../../reference/datamodel.rst:407
msgid
""
"These represent a mutable set. They are created by the built-in :func:`set` "
"constructor and can be modified afterwards by several methods, such as :meth:"
"`~set.add`."
msgstr
""
#:
../../reference/datamodel.rst:417
msgid
"Frozen sets"
msgstr
""
#:
../../reference/datamodel.rst:414
msgid
""
"These represent an immutable set. They are created by the built-in :func:"
"`frozenset` constructor. As a frozenset is immutable and :term:`hashable`, "
"it can be used again as an element of another set, or as a dictionary key."
msgstr
""
#:
../../reference/datamodel.rst:464
msgid
"Mappings"
msgstr
""
#:
../../reference/datamodel.rst:425
msgid
""
"These represent finite sets of objects indexed by arbitrary index sets. The "
"subscript notation ``a[k]`` selects the item indexed by ``k`` from the "
"mapping ``a``; this can be used in expressions and as the target of "
"assignments or :keyword:`del` statements. The built-in function :func:`len` "
"returns the number of items in a mapping."
msgstr
""
#:
../../reference/datamodel.rst:431
msgid
"There is currently a single intrinsic mapping type:"
msgstr
""
#:
../../reference/datamodel.rst:464
msgid
"Dictionaries"
msgstr
"字典"
#:
../../reference/datamodel.rst:436
msgid
""
"These represent finite sets of objects indexed by nearly arbitrary values. "
"The only types of values not acceptable as keys are values containing lists "
"or dictionaries or other mutable types that are compared by value rather "
"than by object identity, the reason being that the efficient implementation "
"of dictionaries requires a key's hash value to remain constant. Numeric "
"types used for keys obey the normal rules for numeric comparison: if two "
"numbers compare equal (e.g., ``1`` and ``1.0``) then they can be used "
"interchangeably to index the same dictionary entry."
msgstr
""
#:
../../reference/datamodel.rst:445
msgid
""
"Dictionaries preserve insertion order, meaning that keys will be produced in "
"the same order they were added sequentially over the dictionary. Replacing "
"an existing key does not change the order, however removing a key and re-"
"inserting it will add it to the end instead of keeping its old place."
msgstr
""
#:
../../reference/datamodel.rst:450
msgid
""
"Dictionaries are mutable; they can be created by the ``{...}`` notation (see "
"section :ref:`dict`)."
msgstr
""
#:
../../reference/datamodel.rst:457
msgid
""
"The extension modules :mod:`dbm.ndbm` and :mod:`dbm.gnu` provide additional "
"examples of mapping types, as does the :mod:`collections` module."
msgstr
""
#:
../../reference/datamodel.rst:461
msgid
""
"Dictionaries did not preserve insertion order in versions of Python before "
"3.6. In CPython 3.6, insertion order was preserved, but it was considered an "
"implementation detail at that time rather than a language guarantee."
msgstr
""
#:
../../reference/datamodel.rst:726
msgid
"Callable types"
msgstr
""
#:
../../reference/datamodel.rst:473
msgid
""
"These are the types to which the function call operation (see section :ref:"
"`calls`) can be applied:"
msgstr
""
#:
../../reference/datamodel.rst:579
msgid
"User-defined functions"
msgstr
""
#:
../../reference/datamodel.rst:482
msgid
""
"A user-defined function object is created by a function definition (see "
"section :ref:`function`). It should be called with an argument list "
"containing the same number of items as the function's formal parameter list."
msgstr
""
#:
../../reference/datamodel.rst:487
../../reference/datamodel.rst:841
msgid
"Special attributes:"
msgstr
""
#:
../../reference/datamodel.rst:505
msgid
"Attribute"
msgstr
"屬性"
#:
../../reference/datamodel.rst:505
msgid
"Meaning"
msgstr
""
#:
../../reference/datamodel.rst:507
../../reference/datamodel.rst:762
#:
../../reference/datamodel.rst:857
msgid
":attr:`__doc__`"
msgstr
":attr:`__doc__`"
#:
../../reference/datamodel.rst:507
msgid
""
"The function's documentation string, or ``None`` if unavailable; not "
"inherited by subclasses."
msgstr
""
#:
../../reference/datamodel.rst:507
../../reference/datamodel.rst:512
#:
../../reference/datamodel.rst:515
../../reference/datamodel.rst:520
#:
../../reference/datamodel.rst:524
../../reference/datamodel.rst:530
#:
../../reference/datamodel.rst:540
../../reference/datamodel.rst:551
#:
../../reference/datamodel.rst:561
msgid
"Writable"
msgstr
""
#:
../../reference/datamodel.rst:512
msgid
":attr:`~definition.
\\
__name__`"
msgstr
":attr:`~definition.
\\
__name__`"
#:
../../reference/datamodel.rst:512
msgid
"The function's name."
msgstr
""
#:
../../reference/datamodel.rst:515
msgid
":attr:`~definition.
\\
__qualname__`"
msgstr
":attr:`~definition.
\\
__qualname__`"
#:
../../reference/datamodel.rst:515
msgid
"The function's :term:`qualified name`."
msgstr
""
#:
../../reference/datamodel.rst:520
../../reference/datamodel.rst:847
msgid
":attr:`__module__`"
msgstr
":attr:`__module__`"
#:
../../reference/datamodel.rst:520
msgid
""
"The name of the module the function was defined in, or ``None`` if "
"unavailable."
msgstr
""
#:
../../reference/datamodel.rst:524
msgid
":attr:`__defaults__`"
msgstr
":attr:`__defaults__`"
#:
../../reference/datamodel.rst:524
msgid
""
"A tuple containing default argument values for those arguments that have "
"defaults, or ``None`` if no arguments have a default value."
msgstr
""
#:
../../reference/datamodel.rst:530
msgid
":attr:`__code__`"
msgstr
":attr:`__code__`"
#:
../../reference/datamodel.rst:530
msgid
"The code object representing the compiled function body."
msgstr
""
#:
../../reference/datamodel.rst:533
msgid
":attr:`__globals__`"
msgstr
":attr:`__globals__`"
#:
../../reference/datamodel.rst:533
msgid
""
"A reference to the dictionary that holds the function's global variables --- "
"the global namespace of the module in which the function was defined."
msgstr
""
#:
../../reference/datamodel.rst:533
../../reference/datamodel.rst:544
msgid
"Read-only"
msgstr
""
#:
../../reference/datamodel.rst:540
../../reference/datamodel.rst:850
msgid
":attr:`~object.__dict__`"
msgstr
":attr:`~object.__dict__`"
#:
../../reference/datamodel.rst:540
msgid
"The namespace supporting arbitrary function attributes."
msgstr
""
#:
../../reference/datamodel.rst:544
msgid
":attr:`__closure__`"
msgstr
":attr:`__closure__`"
#:
../../reference/datamodel.rst:544
msgid
""
"``None`` or a tuple of cells that contain bindings for the function's free "
"variables. See below for information on the ``cell_contents`` attribute."
msgstr
""
#:
../../reference/datamodel.rst:551
../../reference/datamodel.rst:777
#:
../../reference/datamodel.rst:864
msgid
":attr:`__annotations__`"
msgstr
":attr:`__annotations__`"
#:
../../reference/datamodel.rst:551
msgid
""
"A dict containing annotations of parameters. The keys of the dict are the "
"parameter names, and ``'return'`` for the return annotation, if provided. "
"For more information on working with this attribute, see :ref:`annotations-"
"howto`."
msgstr
""
#:
../../reference/datamodel.rst:561
msgid
":attr:`__kwdefaults__`"
msgstr
":attr:`__kwdefaults__`"
#:
../../reference/datamodel.rst:561
msgid
"A dict containing defaults for keyword-only parameters."
msgstr
""
#:
../../reference/datamodel.rst:565
msgid
""
"Most of the attributes labelled
\"
Writable
\"
check the type of the assigned "
"value."
msgstr
""
#:
../../reference/datamodel.rst:567
msgid
""
"Function objects also support getting and setting arbitrary attributes, "
"which can be used, for example, to attach metadata to functions. Regular "
"attribute dot-notation is used to get and set such attributes. *Note that "
"the current implementation only supports function attributes on user-defined "
"functions. Function attributes on built-in functions may be supported in the "
"future.*"
msgstr
""
#:
../../reference/datamodel.rst:573
msgid
""
"A cell object has the attribute ``cell_contents``. This can be used to get "
"the value of the cell, as well as set the value."
msgstr
""
#:
../../reference/datamodel.rst:576
msgid
""
"Additional information about a function's definition can be retrieved from "
"its code object; see the description of internal types below. The :data:"
"`cell <types.CellType>` type can be accessed in the :mod:`types` module."
msgstr
""
#:
../../reference/datamodel.rst:642
msgid
"Instance methods"
msgstr
""
#:
../../reference/datamodel.rst:587
msgid
""
"An instance method object combines a class, a class instance and any "
"callable object (normally a user-defined function)."
msgstr
""
#:
../../reference/datamodel.rst:597
msgid
""
"Special read-only attributes: :attr:`__self__` is the class instance "
"object, :attr:`__func__` is the function object; :attr:`__doc__` is the "
"method's documentation (same as ``__func__.__doc__``); :attr:`~definition."
"__name__` is the method name (same as ``__func__.__name__``); :attr:"
"`__module__` is the name of the module the method was defined in, or "
"``None`` if unavailable."
msgstr
""
#:
../../reference/datamodel.rst:603
msgid
""
"Methods also support accessing (but not setting) the arbitrary function "
"attributes on the underlying function object."
msgstr
""
#:
../../reference/datamodel.rst:606
msgid
""
"User-defined method objects may be created when getting an attribute of a "
"class (perhaps via an instance of that class), if that attribute is a user-"
"defined function object or a class method object."
msgstr
""
#:
../../reference/datamodel.rst:610
msgid
""
"When an instance method object is created by retrieving a user-defined "
"function object from a class via one of its instances, its :attr:`__self__` "
"attribute is the instance, and the method object is said to be bound. The "
"new method's :attr:`__func__` attribute is the original function object."
msgstr
""
#:
../../reference/datamodel.rst:616
msgid
""
"When an instance method object is created by retrieving a class method "
"object from a class or instance, its :attr:`__self__` attribute is the class "
"itself, and its :attr:`__func__` attribute is the function object underlying "
"the class method."
msgstr
""
#:
../../reference/datamodel.rst:621
msgid
""
"When an instance method object is called, the underlying function (:attr:"
"`__func__`) is called, inserting the class instance (:attr:`__self__`) in "
"front of the argument list. For instance, when :class:`C` is a class which "
"contains a definition for a function :meth:`f`, and ``x`` is an instance of :"
"class:`C`, calling ``x.f(1)`` is equivalent to calling ``C.f(x, 1)``."
msgstr
""
#:
../../reference/datamodel.rst:628
msgid
""
"When an instance method object is derived from a class method object, the "
"
\"
class instance
\"
stored in :attr:`__self__` will actually be the class "
"itself, so that calling either ``x.f(1)`` or ``C.f(1)`` is equivalent to "
"calling ``f(C,1)`` where ``f`` is the underlying function."
msgstr
""
#:
../../reference/datamodel.rst:633
msgid
""
"Note that the transformation from function object to instance method object "
"happens each time the attribute is retrieved from the instance. In some "
"cases, a fruitful optimization is to assign the attribute to a local "
"variable and call that local variable. Also notice that this transformation "
"only happens for user-defined functions; other callable objects (and all non-"
"callable objects) are retrieved without transformation. It is also "
"important to note that user-defined functions which are attributes of a "
"class instance are not converted to bound methods; this *only* happens when "
"the function is an attribute of the class."
msgstr
""
#:
../../reference/datamodel.rst:657
msgid
"Generator functions"
msgstr
""
#:
../../reference/datamodel.rst:649
msgid
""
"A function or method which uses the :keyword:`yield` statement (see section :"
"ref:`yield`) is called a :dfn:`generator function`. Such a function, when "
"called, always returns an :term:`iterator` object which can be used to "
"execute the body of the function: calling the iterator's :meth:`iterator."
"__next__` method will cause the function to execute until it provides a "
"value using the :keyword:`!yield` statement. When the function executes a :"
"keyword:`return` statement or falls off the end, a :exc:`StopIteration` "
"exception is raised and the iterator will have reached the end of the set of "
"values to be returned."
msgstr
""
#:
../../reference/datamodel.rst:667
msgid
"Coroutine functions"
msgstr
""
#:
../../reference/datamodel.rst:663
msgid
""
"A function or method which is defined using :keyword:`async def` is called "
"a :dfn:`coroutine function`. Such a function, when called, returns a :term:"
"`coroutine` object. It may contain :keyword:`await` expressions, as well "
"as :keyword:`async with` and :keyword:`async for` statements. See also the :"
"ref:`coroutine-objects` section."
msgstr
""
#:
../../reference/datamodel.rst:687
msgid
"Asynchronous generator functions"
msgstr
""
#:
../../reference/datamodel.rst:674
msgid
""
"A function or method which is defined using :keyword:`async def` and which "
"uses the :keyword:`yield` statement is called a :dfn:`asynchronous generator "
"function`. Such a function, when called, returns an :term:`asynchronous "
"iterator` object which can be used in an :keyword:`async for` statement to "
"execute the body of the function."
msgstr
""
#:
../../reference/datamodel.rst:680
msgid
""
"Calling the asynchronous iterator's :meth:`aiterator.__anext__ <object."
"__anext__>` method will return an :term:`awaitable` which when awaited will "
"execute until it provides a value using the :keyword:`yield` expression. "
"When the function executes an empty :keyword:`return` statement or falls off "
"the end, a :exc:`StopAsyncIteration` exception is raised and the "
"asynchronous iterator will have reached the end of the set of values to be "
"yielded."
msgstr
""
#:
../../reference/datamodel.rst:702
msgid
"Built-in functions"
msgstr
""
#:
../../reference/datamodel.rst:695
msgid
""
"A built-in function object is a wrapper around a C function. Examples of "
"built-in functions are :func:`len` and :func:`math.sin` (:mod:`math` is a "
"standard built-in module). The number and type of the arguments are "
"determined by the C function. Special read-only attributes: :attr:`__doc__` "
"is the function's documentation string, or ``None`` if unavailable; :attr:"
"`~definition.__name__` is the function's name; :attr:`__self__` is set to "
"``None`` (but see the next item); :attr:`__module__` is the name of the "
"module the function was defined in or ``None`` if unavailable."
msgstr
""
#:
../../reference/datamodel.rst:714
msgid
"Built-in methods"
msgstr
""
#:
../../reference/datamodel.rst:710
msgid
""
"This is really a different disguise of a built-in function, this time "
"containing an object passed to the C function as an implicit extra "
"argument. An example of a built-in method is ``alist.append()``, assuming "
"*alist* is a list object. In this case, the special read-only attribute :"
"attr:`__self__` is set to the object denoted by *alist*."
msgstr
""
#:
../../reference/datamodel.rst:721
msgid
"Classes"
msgstr
""
#:
../../reference/datamodel.rst:717
msgid
""
"Classes are callable. These objects normally act as factories for new "
"instances of themselves, but variations are possible for class types that "
"override :meth:`~object.__new__`. The arguments of the call are passed to :"
"meth:`__new__` and, in the typical case, to :meth:`~object.__init__` to "
"initialize the new instance."
msgstr
""
#:
../../reference/datamodel.rst:726
msgid
"Class Instances"
msgstr
""
#:
../../reference/datamodel.rst:724
msgid
""
"Instances of arbitrary classes can be made callable by defining a :meth:"
"`~object.__call__` method in their class."
msgstr
""
#:
../../reference/datamodel.rst:789
msgid
"Modules"
msgstr
"模組"
#:
../../reference/datamodel.rst:733
msgid
""
"Modules are a basic organizational unit of Python code, and are created by "
"the :ref:`import system <importsystem>` as invoked either by the :keyword:"
"`import` statement, or by calling functions such as :func:`importlib."
"import_module` and built-in :func:`__import__`. A module object has a "
"namespace implemented by a dictionary object (this is the dictionary "
"referenced by the ``__globals__`` attribute of functions defined in the "
"module). Attribute references are translated to lookups in this dictionary, "
"e.g., ``m.x`` is equivalent to ``m.__dict__[
\"
x
\"
]``. A module object does "
"not contain the code object used to initialize the module (since it isn't "
"needed once the initialization is done)."
msgstr
""
#:
../../reference/datamodel.rst:745
msgid
""
"Attribute assignment updates the module's namespace dictionary, e.g., ``m.x "
"= 1`` is equivalent to ``m.__dict__[
\"
x
\"
] = 1``."
msgstr
""
#:
../../reference/datamodel.rst:755
msgid
"Predefined (writable) attributes:"
msgstr
""
#:
../../reference/datamodel.rst:758
msgid
":attr:`__name__`"
msgstr
":attr:`__name__`"
#:
../../reference/datamodel.rst:758
msgid
"The module's name."
msgstr
""
#:
../../reference/datamodel.rst:761
msgid
"The module's documentation string, or ``None`` if unavailable."
msgstr
""
#:
../../reference/datamodel.rst:771
msgid
":attr:`__file__`"
msgstr
":attr:`__file__`"
#:
../../reference/datamodel.rst:765
msgid
""
"The pathname of the file from which the module was loaded, if it was loaded "
"from a file. The :attr:`__file__` attribute may be missing for certain types "
"of modules, such as C modules that are statically linked into the "
"interpreter. For extension modules loaded dynamically from a shared "
"library, it's the pathname of the shared library file."
msgstr
""
#:
../../reference/datamodel.rst:774
msgid
""
"A dictionary containing :term:`variable annotations <variable annotation>` "
"collected during module body execution. For best practices on working with :"
"attr:`__annotations__`, please see :ref:`annotations-howto`."
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