make os, select and signal export the stdlib symbols, just like socket and ssl.

changelog.rst

@@ -28,7 +28,11 @@
   a :exc:`ValueError` if they do. See :issue:`775`.
 - Python 3: Add support for :meth:`socket.socket.sendmsg`,
   :meth:`socket.socket.recvmsg` and :meth:`socket.socket.recvmsg_into`
-  on platforms where they are defined. Initial :pr:`773` by Jakub Klama.
+  on platforms where they are defined. Initial :pr:`773` by Jakub
+  Klama.
+- The modules :mod:`gevent.os`, :mod:`gevent.signal` and
+  :mod:`gevent.select` export all the attributes from their
+  corresponding standard library counterpart.
 
 1.1.0 (Mar 5, 2016)
 ===================

gevent/os.py

@@ -47,6 +47,7 @@ import os
 import sys
 from gevent.hub import get_hub, reinit
 from gevent._compat import PY3
+from gevent._util import copy_globals
 import errno
 
 EAGAIN = getattr(errno, 'EAGAIN', 11)
@@ -430,5 +431,8 @@ if hasattr(os, 'fork'):
 else:
     __implements__.remove('fork')
 
+__imports__ = copy_globals(os, globals(),
+                           names_to_ignore=__implements__ + __extensions__,
+                           dunder_names_to_keep=())
 
-__all__ = __implements__ + __extensions__
+__all__ = list(set(__implements__ + __extensions__))

gevent/select.py

@@ -6,6 +6,7 @@ from __future__ import absolute_import
 from gevent.event import Event
 from gevent.hub import get_hub
 from gevent._compat import integer_types
+from gevent._util import copy_globals
 
 
 try:
@@ -22,6 +23,9 @@ import select as __select__
 
 error = __select__.error
 
+__imports__ = copy_globals(__select__, globals(),
+                           names_to_ignore=__all__,
+                           dunder_names_to_keep=())
 
 def get_fileno(obj):
     try:

gevent/signal.py

@@ -15,6 +15,8 @@ information on configuring this not to be the case for advanced uses.
 """
 
 from __future__ import absolute_import
+from gevent._util import _NONE as _INITIAL
+from gevent._util import copy_globals
 
 import signal as _signal
 
@@ -22,8 +24,6 @@ __implements__ = []
 __extensions__ = []
 
 
-_INITIAL = object()
-
 _child_handler = _INITIAL
 
 _signal_signal = _signal.signal
@@ -116,4 +116,8 @@ else:
     __extensions__.append("signal")
     __extensions__.append("getsignal")
 
+__imports__ = copy_globals(_signal, globals(),
+                           names_to_ignore=__implements__ + __extensions__,
+                           dunder_names_to_keep=())
+
 __all__ = __implements__ + __extensions__

greentest/test__all__.py

@@ -61,6 +61,13 @@ if sys.platform.startswith('win'):
 
 class Test(unittest.TestCase):
 
+    stdlib_has_all = False
+    stdlib_all = ()
+    stdlib_name = None
+    stdlib_module = None
+    module = None
+    __implements__ = __extensions__ = __imports__ = ()
+
     def check_all(self):
         "Check that __all__ is present and does not contain invalid entries"
         if not hasattr(self.module, '__all__'):
@@ -145,9 +152,13 @@ class Test(unittest.TestCase):
         not_implemented = NOT_IMPLEMENTED.get(self.stdlib_name)
         if not_implemented is not None:
             result = []
-            for name in missed[:]:
+            for name in missed:
                 if name in not_implemented:
-                    print('IncompleteImplWarning: %s.%s' % (self.modname, name))
+                    # We often don't want __all__ to be set because we wind up
+                    # documenting things that we just copy in from the stdlib.
+                    # But if we implement it, don't print a warning
+                    if getattr(self.module, name, self) is self:
+                        print('IncompleteImplWarning: %s.%s' % (self.modname, name))
                 else:
                     result.append(name)
             missed = result