embedding sure

setup.py

@@ -38,7 +38,8 @@ def get_packages():
     return packages
 
 requirements = [
-          'misaka',
+    'misaka',
+    'sure'
 ]
 
 setup(name='steadymark',

steadymark/core.py

@@ -91,10 +91,12 @@ class MarkdownTest(object):
 
         is_doctest = isinstance(self.code, DocTest)
         try:
+            import sure
             if is_doctest:
                 result = self._run_doctest()
             else:
                 result = self._run_raw()
+            sure
 
         except:
             failure = sys.exc_info()