Windows: Use 32-bit distribution of python

python/gevent/_util.py

@@ -5,6 +5,8 @@ internal gevent utilities, not for external use.
 
 from __future__ import print_function, absolute_import, division
 
+from functools import update_wrapper
+
 from gevent._compat import iteritems
 
 
@@ -29,21 +31,22 @@ def copy_globals(source,
                  dunder_names_to_keep=('__implements__', '__all__', '__imports__'),
                  cleanup_globs=True):
     """
-    Copy attributes defined in `source.__dict__` to the dictionary in globs
-    (which should be the caller's globals()).
+    Copy attributes defined in ``source.__dict__`` to the dictionary
+    in globs (which should be the caller's :func:`globals`).
 
-    Names that start with `__` are ignored (unless they are in
+    Names that start with ``__`` are ignored (unless they are in
     *dunder_names_to_keep*). Anything found in *names_to_ignore* is
     also ignored.
 
-    If *only_names* is given, only those attributes will be considered.
-    In this case, *ignore_missing_names* says whether or not to raise an AttributeError
-    if one of those names can't be found.
+    If *only_names* is given, only those attributes will be
+    considered. In this case, *ignore_missing_names* says whether or
+    not to raise an :exc:`AttributeError` if one of those names can't
+    be found.
 
-    If cleanup_globs has a true value, then common things imported but not used
-    at runtime are removed, including this function.
+    If *cleanup_globs* has a true value, then common things imported but
+    not used at runtime are removed, including this function.
 
-    Returns a list of the names copied
+    Returns a list of the names copied; this should be assigned to ``__imports__``.
     """
     if only_names:
         if ignore_missing_names:
@@ -70,6 +73,47 @@ def copy_globals(source,
 
     return copied
 
+def import_c_accel(globs, cname):
+    """
+    Import the C-accelerator for the __name__
+    and copy its globals.
+    """
+
+    name = globs.get('__name__')
+
+    if not name or name == cname:
+        # Do nothing if we're being exec'd as a file (no name)
+        # or we're running from the C extension
+        return
+
+
+    from gevent._compat import PURE_PYTHON
+    if PURE_PYTHON:
+        return
+
+    import importlib
+    import warnings
+    with warnings.catch_warnings():
+        # Python 3.7 likes to produce
+        # "ImportWarning: can't resolve
+        #   package from __spec__ or __package__, falling back on
+        #   __name__ and __path__"
+        # when we load cython compiled files. This is probably a bug in
+        # Cython, but it doesn't seem to have any consequences, it's
+        # just annoying to see and can mess up our unittests.
+        warnings.simplefilter('ignore', ImportWarning)
+        mod = importlib.import_module(cname)
+
+    # By adopting the entire __dict__, we get a more accurate
+    # __file__ and module repr, plus we don't leak any imported
+    # things we no longer need.
+    globs.clear()
+    globs.update(mod.__dict__)
+
+    if 'import_c_accel' in globs:
+        del globs['import_c_accel']
+
+
 class Lazy(object):
     """
     A non-data descriptor used just like @property. The
@@ -79,6 +123,7 @@ class Lazy(object):
     """
     def __init__(self, func):
         self.data = (func, func.__name__)
+        update_wrapper(self, func)
 
     def __get__(self, inst, class_):
         if inst is None:
@@ -98,9 +143,36 @@ class readproperty(object):
 
     def __init__(self, func):
         self.func = func
+        update_wrapper(self, func)
 
     def __get__(self, inst, class_):
         if inst is None:
             return self
 
         return self.func(inst)
+
+def gmctime():
+    """
+    Returns the current time as a string in RFC3339 format.
+    """
+    import time
+    return time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime())
+
+try:
+    from zope.interface import Interface
+    from zope.interface import implementer
+    from zope.interface import Attribute
+except ImportError:
+    class Interface(object):
+        pass
+    def implementer(_iface):
+        def dec(c):
+            return c
+        return dec
+
+    def Attribute(s):
+        return s
+
+Interface = Interface
+implementer = implementer
+Attribute = Attribute