handle values of None or tuples

Author: ethanfurman

Lib/enum.py

@@ -550,12 +550,23 @@ def __new__(metacls, cls, bases, classdict, *, boundary=None, _simple=False, **k
             inverted = []
             for n in member_names:
                 p = classdict[n]
-                if p.value < 0:
-                    inverted.append(p)
-                else:
-                    bits |= p.value
+                if isinstance(p.value, int):
+                    if p.value < 0:
+                        inverted.append(p)
+                    else:
+                        bits |= p.value
+                elif p.value is None:
+                    pass
+                elif isinstance(p.value, tuple) and p.value and isinstance(p.value[0], int):
+                    if p.value[0] < 0:
+                        inverted.append(p)
+                    else:
+                        bits |= p.value[0]
             for p in inverted:
-                p.value = bits & p.value
+                if isinstance(p.value, int):
+                    p.value = bits & p.value
+                else:
+                    p.value = (bits & p.value[0], ) + p.value[1:]
         try:
             classdict['_%s__in_progress' % cls] = True
             enum_class = super().__new__(metacls, cls, bases, classdict, **kwds)