diff options
Diffstat (limited to 'Lib/enum.py')
| -rw-r--r-- | Lib/enum.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Lib/enum.py b/Lib/enum.py index c1ccf53dc63..f6c34ea06d2 100644 --- a/Lib/enum.py +++ b/Lib/enum.py @@ -114,9 +114,12 @@ def _make_class_unpicklable(obj): setattr(obj, '__module__', '<unknown>') def _iter_bits_lsb(num): - # num must be an integer + # num must be a positive integer + original = num if isinstance(num, Enum): num = num.value + if num < 0: + raise ValueError('%r is not a positive integer' % original) while num: b = num & (~num + 1) yield b @@ -1839,6 +1842,9 @@ class verify: if name in member_names: # not an alias continue + if alias.value < 0: + # negative numbers are not checked + continue values = list(_iter_bits_lsb(alias.value)) missed = [v for v in values if v not in member_values] if missed: |