--- checker.py	2016-12-08 14:47:29.734418995 -0800
+++ checker.new	2016-12-08 14:47:19.978419001 -0800
@@ -593,7 +593,7 @@
             # Look for imported names that aren't used.
             for value in scope.values():
                 if isinstance(value, Importation):
-                    used = value.used or value.name in all_names
+                    used = value.used or value.name in all_names or scope.importStarred
                     if not used:
                         messg = messages.UnusedImport
                         self.report(messg, value.source, str(value))
@@ -1271,9 +1271,19 @@
                     self.report(messages.ImportStarNotPermitted,
                                 node, module)
                     continue
-
+                for p in sys.path:
+                    if os.path.exists(os.path.join(p, module)):
+                        __all__ = {}
+                        exec('from %s import *' % module, {}, __all__)
+                        for n in sorted(__all__):
+                            self.addBinding(
+                                    node,
+                                    ImportationFrom(n, node, module, n),
+                                    )
+                        break
+                else:
+                    self.report(messages.ImportStarUsed, node, module)
                 self.scope.importStarred = True
-                self.report(messages.ImportStarUsed, node, module)
                 importation = StarImportation(module, node)
             else:
                 importation = ImportationFrom(name, node,