diff --git a/mercurial/util.py b/mercurial/util.py
--- a/mercurial/util.py
+++ b/mercurial/util.py
@@ -194,6 +194,9 @@ if _dowarn and pycompat.ispy3:
                             r'mercurial')
     warnings.filterwarnings(r'ignore', r'invalid escape sequence',
                             DeprecationWarning, r'mercurial')
+    # TODO: reinvent imp.is_frozen()
+    warnings.filterwarnings(r'ignore', r'the imp module is deprecated',
+                            DeprecationWarning, r'mercurial')
 
 def nouideprecwarn(msg, version, stacklevel=1):
     """Issue an python native deprecation warning