Better way to set explicit bool parsing.
@@ -14,8 +14,8 @@ import luigi
from law.notification import notify_mail
-# globally make luigi's BoolParameter parsing explicit, https://github.com/spotify/luigi/pull/2427
-luigi.BoolParameter.parsing = "explicit"
+# make luigi's BoolParameter parsing explicit globally, https://github.com/spotify/luigi/pull/2427
+luigi.BoolParameter.parsing = getattr(luigi.BoolParameter, "EXPLICIT_PARSING", "explicit")
#: String value denoting an empty parameter.
