Test suite should pass even if example dependencies are not present

test/test_examples.py

@@ -3,6 +3,7 @@ from libmproxy import utils, script
 from libmproxy.proxy import config
 import tservers
 
+
 def test_load_scripts():
     example_dir = utils.Data("libmproxy").path("../examples")
     scripts = glob.glob("%s/*.py" % example_dir)
@@ -16,5 +17,10 @@ def test_load_scripts():
             f += " foo"  # one argument required
         if "modify_response_body" in f:
             f += " foo bar"  # two arguments required
-        s = script.Script(f, tmaster)  # Loads the script file.
-        s.unload()
+        try:
+            s = script.Script(f, tmaster)  # Loads the script file.
+        except Exception, v:
+            if not "ImportError" in str(v):
+                raise
+        else:
+            s.unload()