diff options
Diffstat (limited to 'Lib/doctest.py')
| -rw-r--r-- | Lib/doctest.py | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Lib/doctest.py b/Lib/doctest.py index 900d8718f9..318b21df54 100644 --- a/Lib/doctest.py +++ b/Lib/doctest.py @@ -129,9 +129,8 @@ warnings.filterwarnings("ignore", "is_private", DeprecationWarning, OPTIONFLAGS_BY_NAME = {} def register_optionflag(name): - flag = 1 << len(OPTIONFLAGS_BY_NAME) - OPTIONFLAGS_BY_NAME[name] = flag - return flag + # Create a new flag unless `name` is already known. + return OPTIONFLAGS_BY_NAME.setdefault(name, 1 << len(OPTIONFLAGS_BY_NAME)) DONT_ACCEPT_TRUE_FOR_1 = register_optionflag('DONT_ACCEPT_TRUE_FOR_1') DONT_ACCEPT_BLANKLINE = register_optionflag('DONT_ACCEPT_BLANKLINE') |