diff --git a/jedi/_compatibility.py b/jedi/_compatibility.py
index dff2e42d..a3489869 100644
--- a/jedi/_compatibility.py
+++ b/jedi/_compatibility.py
@@ -19,41 +19,52 @@ is_py3k = sys.hexversion >= 0x03000000
 is_py33 = sys.hexversion >= 0x03030000
 is_py25 = sys.hexversion < 0x02060000
 
-if is_py33:
-    def find_module(string, path=None):
-        importing = None
-        if path is not None:
-            importing = importlib.find_loader(string, path)
-            if importing is None:
-                raise ImportError
+def find_module_py33(string, path=None):
+    returning = (None, None, None)
+    importing = None
+    if path is not None:
+        importing = importlib.find_loader(string, path)
+    else:
+        importing = importlib.find_loader(string)
+
+    if importing is None:
+        raise ImportError
+
+    try:
+        filename = importing.get_filename(string)
+        if filename and os.path.exists(filename):
+            returning = (open(filename, 'U'), filename, False)
         else:
-            importing = importlib.find_loader(string)
+            returning = (None, filename, False)
+    except AttributeError:
+        returning = (None, importing.load_module(string).__name__, False)
 
-        returning = (None, None, None)
-        try:
-            filename = importing.get_filename(string)
-            if filename and os.path.exists(filename):
-                returning = (open(filename, 'U'), filename, False)
-            else:
-                returning = (None, filename, False)
-        except AttributeError:
-            if importing is None:
-                returning = (None, None, False)
-            else:
-                returning = (None, importing.load_module(string).__name__, False)
-        
-        return returning
-else:
-    def find_module(string, path=None):
-        importing = None
-        if path is None:
-            importing = imp.find_module(string)
-        else:
-            importing = imp.find_module(string, path)
+    return returning
 
-        returning = (importing[0], importing[1], importing[2][2] == imp.PKG_DIRECTORY)
+def find_module_pre_py33(string, path=None):
+    importing = None
+    if path is None:
+        importing = imp.find_module(string)
+    else:
+        importing = imp.find_module(string, path)
 
-        return returning
+    return (importing[0], importing[1], importing[2][2] == imp.PKG_DIRECTORY)
+
+def find_module(string, path=None):
+    """Provides information about a module.
+
+    This function isolates the differences in importing libraries introduced with
+    python 3.3 on; it gets a module name and optionally a path. It will return a
+    tuple containin an open file for the module (if not builtin), the filename
+    or the name of the module if it is a builtin one and a boolean indicating
+    ig the module is contained in a package."""
+    returning = (None, None, None)
+    if is_py33:
+        returning = find_module_py33(string, path)
+    else:
+        returning = find_module_pre_py33(string, path)
+
+    return returning
 
 # next was defined in python 2.6, in python 3 obj.next won't be possible
 # anymore