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-rw-r--r--sleekxmpp/util/stringprep_profiles.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/sleekxmpp/util/stringprep_profiles.py b/sleekxmpp/util/stringprep_profiles.py
index a75bb9dd..6844c9ac 100644
--- a/sleekxmpp/util/stringprep_profiles.py
+++ b/sleekxmpp/util/stringprep_profiles.py
@@ -77,6 +77,9 @@ def check_bidi(data):
character MUST be the first character of the string, and a
RandALCat character MUST be the last character of the string.
"""
+ if not data:
+ return data
+
has_lcat = False
has_randal = False