track embedded python distribution

python/gevent/__init__.py

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+# Copyright (c) 2009-2012 Denis Bilenko. See LICENSE for details.
+"""
+gevent is a coroutine-based Python networking library that uses greenlet
+to provide a high-level synchronous API on top of libev event loop.
+
+See http://www.gevent.org/ for the documentation.
+"""
+
+from __future__ import absolute_import
+
+from collections import namedtuple
+
+_version_info = namedtuple('version_info',
+                           ('major', 'minor', 'micro', 'releaselevel', 'serial'))
+
+#: The programatic version identifier. The fields have (roughly) the
+#: same meaning as :data:`sys.version_info`
+#: Deprecated in 1.2.
+version_info = _version_info(1, 2, 2, 'dev', 0)
+
+#: The human-readable PEP 440 version identifier
+__version__ = '1.2.2'
+
+
+__all__ = ['get_hub',
+           'Greenlet',
+           'GreenletExit',
+           'spawn',
+           'spawn_later',
+           'spawn_raw',
+           'iwait',
+           'wait',
+           'killall',
+           'Timeout',
+           'with_timeout',
+           'getcurrent',
+           'sleep',
+           'idle',
+           'kill',
+           'signal',
+           'fork',
+           'reinit']
+
+
+import sys
+if sys.platform == 'win32':
+    # trigger WSAStartup call
+    import socket  # pylint:disable=unused-import,useless-suppression
+    del socket
+
+from gevent.hub import get_hub, iwait, wait
+from gevent.greenlet import Greenlet, joinall, killall
+joinall = joinall # export for pylint
+spawn = Greenlet.spawn
+spawn_later = Greenlet.spawn_later
+
+from gevent.timeout import Timeout, with_timeout
+from gevent.hub import getcurrent, GreenletExit, spawn_raw, sleep, idle, kill, reinit
+try:
+    from gevent.os import fork
+except ImportError:
+    __all__.remove('fork')
+
+# See https://github.com/gevent/gevent/issues/648
+# A temporary backwards compatibility shim to enable users to continue
+# to treat 'from gevent import signal' as a callable, to matter whether
+# the 'gevent.signal' module has been imported first
+from gevent.hub import signal as _signal_class
+from gevent import signal as _signal_module
+
+# The object 'gevent.signal' must:
+# - be callable, returning a gevent.hub.signal;
+# - answer True to isinstance(gevent.signal(...), gevent.signal);
+# - answer True to isinstance(gevent.signal(...), gevent.hub.signal)
+# - have all the attributes of the module 'gevent.signal';
+# - answer True to isinstance(gevent.signal, types.ModuleType) (optional)
+
+# The only way to do this is to use a metaclass, an instance of which (a class)
+# is put in sys.modules and is substituted for gevent.hub.signal.
+# This handles everything except the last one.
+
+
+class _signal_metaclass(type):
+
+    def __getattr__(cls, name):
+        return getattr(_signal_module, name)
+
+    def __setattr__(cls, name, value):
+        setattr(_signal_module, name, value)
+
+    def __instancecheck__(cls, instance):
+        return isinstance(instance, _signal_class)
+
+    def __dir__(cls):
+        return dir(_signal_module)
+
+
+class signal(object):
+
+    __doc__ = _signal_module.__doc__
+
+    def __new__(cls, *args, **kwargs):
+        return _signal_class(*args, **kwargs)
+
+
+# The metaclass is applied after the class declaration
+# for Python 2/3 compatibility
+signal = _signal_metaclass(str("signal"),
+                           (),
+                           dict(signal.__dict__))
+
+sys.modules['gevent.signal'] = signal
+sys.modules['gevent.hub'].signal = signal
+
+del sys
+
+
+# the following makes hidden imports visible to freezing tools like
+# py2exe. see https://github.com/gevent/gevent/issues/181
+
+def __dependencies_for_freezing():
+    # pylint:disable=unused-variable
+    from gevent import core
+    from gevent import resolver_thread
+    from gevent import resolver_ares
+    from gevent import socket as _socket
+    from gevent import threadpool
+    from gevent import thread
+    from gevent import threading
+    from gevent import select
+    from gevent import subprocess
+    import pprint
+    import traceback
+    import signal as _signal
+
+del __dependencies_for_freezing