1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/re.py b/Lib/re.py
index d772979f91..abbf8d6e29 100644
--- a/Lib/re.py
+++ b/Lib/re.py
@@ -275,6 +275,8 @@ _cache = OrderedDict()
 _MAXCACHE = 512
 def _compile(pattern, flags):
     # internal: compile pattern
+    if isinstance(flags, RegexFlag):
+        flags = flags.value
     try:
         return _cache[type(pattern), pattern, flags]
     except KeyError:
@@ -331,6 +333,8 @@ copyreg.pickle(Pattern, _pickle, _compile)
 class Scanner:
     def __init__(self, lexicon, flags=0):
         from sre_constants import BRANCH, SUBPATTERN
+        if isinstance(flags, RegexFlag):
+            flags = flags.value
         self.lexicon = lexicon
         # combine phrases into a compound pattern
         p = []