fix secure tab

venv/lib/python3.9/site-packages/gevent/testing/six.py

@@ -0,0 +1,14 @@
+import builtins
+
+PY3 = True
+
+exec_ = getattr(builtins, "exec")
+
+def reraise(tp, value, tb=None): # pylint: disable=unused-argument
+    if value.__traceback__ is not tb:
+        raise value.with_traceback(tb)
+    raise value
+
+xrange = range
+string_types = (str,)
+text_type = str