1 files changed, 7 insertions, 4 deletions
diff --git a/pyparsing.py b/pyparsing.py
index 84b6f1d..5006e4e 100644
--- a/pyparsing.py
+++ b/pyparsing.py
@@ -119,6 +119,12 @@ except ImportError:
     except ImportError:
         _OrderedDict = None
 
+try:
+    from types import SimpleNamespace
+except ImportError:
+    class SimpleNamespace: pass
+
+
 #~ sys.stderr.write( "testing pyparsing module, version %s, %s\n" % (__version__,__versionTime__ ) )
 
 __all__ = [
@@ -199,9 +205,6 @@ def _xml_escape(data):
         data = data.replace(from_, to_)
     return data
 
-class _Constants(object):
-    pass
-
 alphas     = string.ascii_uppercase + string.ascii_lowercase
 nums       = "0123456789"
 hexnums    = nums + "ABCDEFabcdef"
@@ -5179,7 +5182,7 @@ def withClass(classname, namespace=''):
     classattr = "%s:class" % namespace if namespace else "class"
     return withAttribute(**{classattr : classname})
 
-opAssoc = _Constants()
+opAssoc = SimpleNamespace()
 opAssoc.LEFT = object()
 opAssoc.RIGHT = object()