diff --git a/contrib/python3-whitelist b/contrib/python3-whitelist
--- a/contrib/python3-whitelist
+++ b/contrib/python3-whitelist
@@ -437,4 +437,5 @@
 test-verify.t
 test-websub.t
 test-win32text.t
+test-wireproto-framing.py
 test-xdg.t
diff --git a/mercurial/utils/stringutil.py b/mercurial/utils/stringutil.py
--- a/mercurial/utils/stringutil.py
+++ b/mercurial/utils/stringutil.py
@@ -510,4 +510,6 @@
 def evalpythonliteral(s):
     """Evaluate a string containing a Python literal expression"""
     # We could backport our tokenizer hack to rewrite '' to u'' if we want
+    if pycompat.ispy3:
+        return ast.literal_eval(s.decode('latin1'))
     return ast.literal_eval(s)