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Name	Size	Permission
dist-packages	[ DIR ]	drwxr-xr-x
encodings	[ DIR ]	drwxr-xr-x
lib-dynload	[ DIR ]	drwxr-xr-x
logging	[ DIR ]	drwxr-xr-x
plat-x86_64-linux-gnu	[ DIR ]	drwxr-xr-x
ConfigParser.py	27.1 KB	-rw-r--r--
ConfigParser.pyc	24.51 KB	-rw-r--r--
StringIO.py	10.41 KB	-rw-r--r--
StringIO.pyc	11.17 KB	-rw-r--r--
UserDict.py	6.89 KB	-rw-r--r--
UserDict.pyc	9.4 KB	-rw-r--r--
__future__.py	4.28 KB	-rw-r--r--
__future__.pyc	4.11 KB	-rw-r--r--
_abcoll.py	18.18 KB	-rw-r--r--
_abcoll.pyc	24.88 KB	-rw-r--r--
_sysconfigdata.py	126 B	-rw-r--r--
_sysconfigdata.pyc	279 B	-rw-r--r--
_weakrefset.py	5.77 KB	-rw-r--r--
_weakrefset.pyc	9.36 KB	-rw-r--r--
abc.py	6.98 KB	-rw-r--r--
abc.pyc	5.98 KB	-rw-r--r--
atexit.py	1.67 KB	-rw-r--r--
atexit.pyc	2.14 KB	-rw-r--r--
base64.py	11.53 KB	-rwxr-xr-x
base64.pyc	11 KB	-rw-r--r--
bisect.py	2.53 KB	-rw-r--r--
bisect.pyc	2.99 KB	-rw-r--r--
calendar.py	22.84 KB	-rw-r--r--
calendar.pyc	27.1 KB	-rw-r--r--
codecs.py	35.3 KB	-rw-r--r--
codecs.pyc	35.78 KB	-rw-r--r--
collections.py	27.15 KB	-rw-r--r--
collections.pyc	25.45 KB	-rw-r--r--
compileall.py	7.58 KB	-rw-r--r--
compileall.pyc	6.84 KB	-rw-r--r--
contextlib.py	4.32 KB	-rw-r--r--
contextlib.pyc	4.33 KB	-rw-r--r--
copy.py	11.26 KB	-rw-r--r--
copy.pyc	11.83 KB	-rw-r--r--
copy_reg.py	6.81 KB	-rw-r--r--
copy_reg.pyc	5.02 KB	-rw-r--r--
dis.py	6.35 KB	-rw-r--r--
dis.pyc	6.07 KB	-rw-r--r--
fnmatch.py	3.24 KB	-rw-r--r--
fnmatch.pyc	3.52 KB	-rw-r--r--
functools.py	4.69 KB	-rw-r--r--
functools.pyc	6.42 KB	-rw-r--r--
genericpath.py	3.13 KB	-rw-r--r--
genericpath.pyc	3.41 KB	-rw-r--r--
getopt.py	7.15 KB	-rw-r--r--
getopt.pyc	6.48 KB	-rw-r--r--
glob.py	3.04 KB	-rw-r--r--
glob.pyc	2.86 KB	-rw-r--r--
hashlib.py	7.66 KB	-rw-r--r--
hashlib.pyc	6.73 KB	-rw-r--r--
heapq.py	17.87 KB	-rw-r--r--
heapq.pyc	14.19 KB	-rw-r--r--
inspect.py	42 KB	-rw-r--r--
inspect.pyc	39.15 KB	-rw-r--r--
io.py	3.24 KB	-rw-r--r--
io.pyc	3.5 KB	-rw-r--r--
keyword.py	1.95 KB	-rwxr-xr-x
keyword.pyc	2.05 KB	-rw-r--r--
linecache.py	3.93 KB	-rw-r--r--
linecache.pyc	3.18 KB	-rw-r--r--
locale.py	100.43 KB	-rw-r--r--
locale.pyc	55.21 KB	-rw-r--r--
md5.py	358 B	-rw-r--r--
md5.pyc	376 B	-rw-r--r--
opcode.py	5.35 KB	-rw-r--r--
opcode.pyc	5.99 KB	-rw-r--r--
optparse.py	59.77 KB	-rw-r--r--
optparse.pyc	52.36 KB	-rw-r--r--
os.py	25.3 KB	-rw-r--r--
os.pyc	24.98 KB	-rw-r--r--
pickle.py	44.42 KB	-rw-r--r--
pickle.pyc	37.45 KB	-rw-r--r--
pkgutil.py	19.77 KB	-rw-r--r--
pkgutil.pyc	18.45 KB	-rw-r--r--
platform.py	52.52 KB	-rwxr-xr-x
platform.pyc	37.65 KB	-rw-r--r--
popen2.py	8.22 KB	-rw-r--r--
popen2.pyc	8.78 KB	-rw-r--r--
posixpath.py	13.96 KB	-rw-r--r--
posixpath.pyc	11.15 KB	-rw-r--r--
py_compile.py	6.14 KB	-rw-r--r--
py_compile.pyc	6.46 KB	-rw-r--r--
random.py	31.7 KB	-rw-r--r--
random.pyc	25.02 KB	-rw-r--r--
re.py	13.11 KB	-rw-r--r--
re.pyc	13.06 KB	-rw-r--r--
repr.py	4.2 KB	-rw-r--r--
repr.pyc	5.23 KB	-rw-r--r--
runpy.py	10.82 KB	-rw-r--r--
runpy.pyc	8.56 KB	-rw-r--r--
sha.py	393 B	-rw-r--r--
sha.pyc	419 B	-rw-r--r--
shutil.py	19.41 KB	-rw-r--r--
shutil.pyc	18.75 KB	-rw-r--r--
site.py	19.48 KB	-rw-r--r--
site.pyc	19.08 KB	-rw-r--r--
sitecustomize.py	155 B	-rw-r--r--
sitecustomize.pyc	232 B	-rw-r--r--
socket.py	20.13 KB	-rw-r--r--
socket.pyc	15.71 KB	-rw-r--r--
sre.py	384 B	-rw-r--r--
sre.pyc	517 B	-rw-r--r--
sre_compile.py	19.36 KB	-rw-r--r--
sre_compile.pyc	12.24 KB	-rw-r--r--
sre_constants.py	7.03 KB	-rw-r--r--
sre_constants.pyc	6.04 KB	-rw-r--r--
sre_parse.py	29.98 KB	-rw-r--r--
sre_parse.pyc	20.59 KB	-rw-r--r--
ssl.py	38.25 KB	-rw-r--r--
ssl.pyc	31.75 KB	-rw-r--r--
stat.py	1.8 KB	-rw-r--r--
stat.pyc	2.67 KB	-rw-r--r--
string.py	21.04 KB	-rw-r--r--
string.pyc	19.88 KB	-rw-r--r--
stringprep.py	13.21 KB	-rw-r--r--
stringprep.pyc	14.11 KB	-rw-r--r--
struct.py	82 B	-rw-r--r--
struct.pyc	237 B	-rw-r--r--
subprocess.py	49.34 KB	-rw-r--r--
subprocess.pyc	31.53 KB	-rw-r--r--
sysconfig.py	24.88 KB	-rw-r--r--
sysconfig.pyc	18.59 KB	-rw-r--r--
tempfile.py	19.09 KB	-rw-r--r--
tempfile.pyc	19.76 KB	-rw-r--r--
textwrap.py	16.88 KB	-rw-r--r--
textwrap.pyc	11.79 KB	-rw-r--r--
token.py	2.85 KB	-rw-r--r--
token.pyc	3.72 KB	-rw-r--r--
tokenize.py	17.07 KB	-rw-r--r--
tokenize.pyc	14.13 KB	-rw-r--r--
traceback.py	11.02 KB	-rw-r--r--
traceback.pyc	11.37 KB	-rw-r--r--
types.py	2.04 KB	-rw-r--r--
types.pyc	2.65 KB	-rw-r--r--
warnings.py	14.48 KB	-rw-r--r--
warnings.pyc	13.15 KB	-rw-r--r--
weakref.py	14.48 KB	-rw-r--r--
weakref.pyc	15.95 KB	-rw-r--r--

Code Editor : abc.py

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

"""Abstract Base Classes (ABCs) according to PEP 3119."""

import types

from _weakrefset import WeakSet

# Instance of old-style class
class _C: pass
_InstanceType = type(_C())

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 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)
    """
    __isabstractmethod__ = True

class ABCMeta(type):

"""Metaclass for defining Abstract Base Classes (ABCs).

Use this metaclass to create an ABC.  An ABC can be subclassed
    directly, and then acts as a mix-in class.  You can also register
    unrelated concrete classes (even built-in classes) and unrelated
    ABCs as 'virtual subclasses' -- these and their descendants will
    be considered subclasses of the registering ABC by the built-in
    issubclass() function, but the registering ABC won't show up in
    their MRO (Method Resolution Order) nor will method
    implementations defined by the registering ABC be callable (not
    even via super()).

"""

# A global counter that is incremented each time a class is
    # registered as a virtual subclass of anything.  It forces the
    # negative cache to be cleared before its next use.
    _abc_invalidation_counter = 0

def __new__(mcls, name, bases, namespace):
        cls = super(ABCMeta, mcls).__new__(mcls, name, bases, namespace)
        # Compute set of abstract method names
        abstracts = set(name
                     for name, value in namespace.items()
                     if getattr(value, "__isabstractmethod__", False))
        for base in bases:
            for name in getattr(base, "__abstractmethods__", set()):
                value = getattr(cls, name, None)
                if getattr(value, "__isabstractmethod__", False):
                    abstracts.add(name)
        cls.__abstractmethods__ = frozenset(abstracts)
        # Set up inheritance registry
        cls._abc_registry = WeakSet()
        cls._abc_cache = WeakSet()
        cls._abc_negative_cache = WeakSet()
        cls._abc_negative_cache_version = ABCMeta._abc_invalidation_counter
        return cls

def register(cls, subclass):
        """Register a virtual subclass of an ABC."""
        if not isinstance(subclass, (type, types.ClassType)):
            raise TypeError("Can only register classes")
        if issubclass(subclass, cls):
            return  # Already a subclass
        # Subtle: test for cycles *after* testing for "already a subclass";
        # this means we allow X.register(X) and interpret it as a no-op.
        if issubclass(cls, subclass):
            # This would create a cycle, which is bad for the algorithm below
            raise RuntimeError("Refusing to create an inheritance cycle")
        cls._abc_registry.add(subclass)
        ABCMeta._abc_invalidation_counter += 1  # Invalidate negative cache

def _dump_registry(cls, file=None):
        """Debug helper to print the ABC registry."""
        print >> file, "Class: %s.%s" % (cls.__module__, cls.__name__)
        print >> file, "Inv.counter: %s" % ABCMeta._abc_invalidation_counter
        for name in sorted(cls.__dict__.keys()):
            if name.startswith("_abc_"):
                value = getattr(cls, name)
                print >> file, "%s: %r" % (name, value)

def __instancecheck__(cls, instance):
        """Override for isinstance(instance, cls)."""
        # Inline the cache checking when it's simple.
        subclass = getattr(instance, '__class__', None)
        if subclass is not None and subclass in cls._abc_cache:
            return True
        subtype = type(instance)
        # Old-style instances
        if subtype is _InstanceType:
            subtype = subclass
        if subtype is subclass or subclass is None:
            if (cls._abc_negative_cache_version ==
                ABCMeta._abc_invalidation_counter and
                subtype in cls._abc_negative_cache):
                return False
            # Fall back to the subclass check.
            return cls.__subclasscheck__(subtype)
        return (cls.__subclasscheck__(subclass) or
                cls.__subclasscheck__(subtype))

def __subclasscheck__(cls, subclass):
        """Override for issubclass(subclass, cls)."""
        # Check cache
        if subclass in cls._abc_cache:
            return True
        # Check negative cache; may have to invalidate
        if cls._abc_negative_cache_version < ABCMeta._abc_invalidation_counter:
            # Invalidate the negative cache
            cls._abc_negative_cache = WeakSet()
            cls._abc_negative_cache_version = ABCMeta._abc_invalidation_counter
        elif subclass in cls._abc_negative_cache:
            return False
        # Check the subclass hook
        ok = cls.__subclasshook__(subclass)
        if ok is not NotImplemented:
            assert isinstance(ok, bool)
            if ok:
                cls._abc_cache.add(subclass)
            else:
                cls._abc_negative_cache.add(subclass)
            return ok
        # Check if it's a direct subclass
        if cls in getattr(subclass, '__mro__', ()):
            cls._abc_cache.add(subclass)
            return True
        # Check if it's a subclass of a registered class (recursive)
        for rcls in cls._abc_registry:
            if issubclass(subclass, rcls):
                cls._abc_cache.add(subclass)
                return True
        # Check if it's a subclass of a subclass (recursive)
        for scls in cls.__subclasses__():
            if issubclass(subclass, scls):
                cls._abc_cache.add(subclass)
                return True
        # No dice; update negative cache
        cls._abc_negative_cache.add(subclass)
        return False

${this.title}

Code Editor : abc.py