Added in patcher module only; this is suboptimal because the history is lost, and we don't acquire any of the refactoring goodness that the patcher module enables. For the next release we'll do it up right.

eventlet/patcher.py

@@ -0,0 +1,63 @@
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import sys
+
+
+__exclude = ('__builtins__', '__file__', '__name__')
+
+
+def inject(module_name, new_globals, *additional_modules):
+    ## Put the specified modules in sys.modules for the duration of the import
+    saved = {}
+    for name, mod in additional_modules:
+        saved[name] = sys.modules.get(name, None)
+        sys.modules[name] = mod
+
+    ## Remove the old module from sys.modules and reimport it while the specified modules are in place
+    old_module = sys.modules.pop(module_name, None)
+    module = __import__(module_name, {}, {}, module_name.split('.')[:-1])
+
+    if new_globals is not None:
+        ## Update the given globals dictionary with everything from this new module
+        for name in dir(module):
+            if name not in __exclude:
+                new_globals[name] = getattr(module, name)
+
+    ## Keep a reference to the new module to prevent it from dying
+    sys.modules['__patched_module_' + module_name] = module
+    ## Put the original module back
+    if old_module is not None:
+        sys.modules[module_name] = old_module
+    else:
+        del sys.modules[module_name]
+
+    ## Put all the saved modules back
+    for name, mod in additional_modules:
+        if saved[name] is not None:
+            sys.modules[name] = saved[name]
+
+    return module
+
+
+def import_patched(module_name, *additional_modules, **kw_additional_modules):
+    return inject(
+    	module_name,
+    	None,
+    	*additional_modules + tuple(kw_additional_modules.items()))
+