#?Copyright?2007?Google?Inc.?All?Rights?Reserved.
#?Licensed?to?PSF?under?a?Contributor?Agreement.

“““Abstract?base?Classes?（ABCs）?according?to?PEP?3119.“““

from?_weakrefset?import?WeakSet


def?abstractmethod（funcobj）:
????“““A?decorator?indicating?abstract?methods.

????Requires?that?the?metaclass?is?ABCmeta?or?derived?from?it.??A
????class?that?has?a?metaclass?derived?from?ABCmeta?cannot?be
????instantiated?unless?all?of?its?abstract?methods?are?overridden.
????The?abstract?methods?can?be?called?using?any?of?the?normal
????‘super‘?call?mechanisms.

????Usage:

????????class?C（metaclass=ABCmeta）:
????????????@abstractmethod
????????????def?my_abstract_method（self?...）:
????????????????...
????“““
????funcobj.__isabstractmethod__?=?True
????return?funcobj


class?abstractclassmethod（classmethod）:
????“““
????A?decorator?indicating?abstract?classmethods.

????Similar?to?abstractmethod.

????Usage:

????????class?C（metaclass=ABCmeta）:
????????????@abstractclassmethod
????????????def?my_abstract_classmethod（cls?...）:
????????????????...

????‘a(chǎn)bstractclassmethod‘?is?deprecated.?Use?‘classmethod‘?with
????‘a(chǎn)bstractmethod‘?instead.
????“““

????__isabstractmethod__?=?True

????def?__init__（self?callable）:
????????callable.__isabstractmethod__?=?True
????????super（）.__init__（callable）


class?abstractstaticmethod（staticmethod）:
????“““
????A?decorator?indicating?abstract?staticmethods.

????Similar?to?abstractmethod.

????Usage:

????????class?C（metaclass=ABCmeta）:
????????????@abstractstaticmethod
????????????def?my_abstract_staticmethod（...）:
????????????????...

????‘a(chǎn)bstractstaticmethod‘?is?deprecated.?Use?‘staticmethod‘?with
????‘a(chǎn)bstractmethod‘?instead.
????“““

????__isabstractmethod__?=?True

????def?__init__（self?callable）:
????????callable.__isabstractmethod__?=?True
????????super（）.__init__（callable）


class?abstractproperty（property）:
????“““
????A?decorator?indicating?abstract?properties.

????Requires?that?the?metaclass?is?ABCmeta?or?derived?from?it.??A
????class?that?has?a?metaclass?derived?from?ABCmeta?cannot?be
????instantiated?unless?all?of?its?abstract?properties?are?overridden.
????The?abstract?properties?can?be?called?using?any?of?the?normal
????‘super‘?call?mechanisms.

????Usage:

????????class?C（metaclass=ABCmeta）:
????????????@abstractproperty
????????????def?my_abstract_property（self）:
????????????????...

????This?defines?a?read-only?property;?you?can?also?define?a?read-write
????abstract?property?using?the?‘long‘?form?of?property?declaration:

????????class?C（metaclass=ABCmeta）:
????????????def?getx（self）:?...
????????????def?setx（self?value）:?...
????????????x?=?abstractproperty（getx?setx）

????‘a(chǎn)bstractproperty‘?is?deprecated.?Use?‘property‘?with?‘a(chǎn)bstractmethod‘
????instead.
????“““

????__isabstractmethod__?=?True


class?ABCmeta（type）:

????“““metaclass?for?defining?Abstract?base?Classes?（ABCs）.

???

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????19790??2017-02-13?22:42??python\DLLs\py.ico

?????文件??????19790??2017-02-13?22:42??python\DLLs\pyc.ico

?????文件?????162968??2017-08-08?02:08??python\DLLs\pyexpat.pyd

?????文件??????23192??2017-08-08?02:08??python\DLLs\select.pyd

?????文件?????605336??2017-08-08?02:08??python\DLLs\sqlite3.dll

?????文件????1295872??2017-02-13?23:43??python\DLLs\tcl86t.dll

?????文件????1540608??2017-02-13?23:44??python\DLLs\tk86t.dll

?????文件?????865432??2017-08-08?02:08??python\DLLs\unicodedata.pyd

?????文件??????23704??2017-08-08?02:08??python\DLLs\winsound.pyd

?????文件??????77976??2017-08-08?02:08??python\DLLs\_bz2.pyd

?????文件?????101528??2017-08-08?02:07??python\DLLs\_ctypes.pyd

?????文件??????29848??2017-08-08?02:07??python\DLLs\_ctypes_test.pyd

?????文件?????214168??2017-08-08?02:08??python\DLLs\_decimal.pyd

?????文件?????161944??2017-08-08?02:08??python\DLLs\_elementtree.pyd

?????文件????1042584??2017-08-08?02:10??python\DLLs\_hashlib.pyd

?????文件?????152728??2017-08-08?02:08??python\DLLs\_lzma.pyd

?????文件??????32408??2017-08-08?02:08??python\DLLs\_msi.pyd

?????文件??????25240??2017-08-08?02:08??python\DLLs\_multiprocessing.pyd

?????文件??????33944??2017-08-08?02:08??python\DLLs\_overlapped.pyd

?????文件??????61592??2017-08-08?02:08??python\DLLs\_socket.pyd

?????文件??????64152??2017-08-08?02:08??python\DLLs\_sqlite3.pyd

?????文件????1454744??2017-08-08?02:10??python\DLLs\_ssl.pyd

?????文件??????41112??2017-08-08?02:07??python\DLLs\_testbuffer.pyd

?????文件??????71320??2017-08-08?02:07??python\DLLs\_testcapi.pyd

?????文件??????19096??2017-08-08?02:07??python\DLLs\_testimportmultiple.pyd

?????文件??????25752??2017-08-08?02:07??python\DLLs\_testmultiphase.pyd

?????文件??????53400??2017-08-08?02:08??python\DLLs\_tkinter.pyd

?????文件????7532322??2017-08-08?02:06??python\Doc\python354.chm

?????文件??????45107??2017-02-13?22:42??python\include\abstract.h

?????文件???????1053??2017-02-13?22:42??python\include\accu.h

............此處省略3718個(gè)文件信息