Fix regex type

1 files changed, 4 insertions, 1 deletions

diff --git a/signald/main.py b/signald/main.py
index 15125d9..047baae 100644
--- a/signald/main.py
+++ b/signald/main.py
@@ -6,6 +6,9 @@ from typing import Iterator, List  # noqa
 
 from .types import Attachment, Message
 
+# We'll need to know the compiled RE object later.
+RE_TYPE = type(re.compile(""))
+
 
 def readlines(s: socket.socket) -> Iterator[bytes]:
     "Read a socket, line by line."
@@ -142,7 +145,7 @@ class Signal:
         """
         A decorator that registers a chat handler function with a regex.
         """
-        if not isinstance(regex, re._pattern_type):
+        if not isinstance(regex, RE_TYPE):
             regex = re.compile(regex, re.I)
 
         def decorator(func):