# HG changeset patch
# User Anton Shestakov <av6@dwimlabs.net>
# Date 2023-05-31 15:02:56
# Node ID 9dcb0084276911d9033d8e19d6fae0f9864cbfbb
# Parent  720a23405fe9264bda5205f78688a5dc3e3e07ad

debug: `isinstance(a, x) or isinstance(a, y)` is `isinstance(a, (x, y))`

diff --git a/mercurial/debugcommands.py b/mercurial/debugcommands.py
--- a/mercurial/debugcommands.py
+++ b/mercurial/debugcommands.py
@@ -2642,7 +2642,7 @@ def debugnodemap(ui, repo, file_=None, *
     r = cmdutil.openstorage(
         repo.unfiltered(), b'debugnodemap', file_, pycompat.byteskwargs(opts)
     )
-    if isinstance(r, manifest.manifestrevlog) or isinstance(r, filelog.filelog):
+    if isinstance(r, (manifest.manifestrevlog, filelog.filelog)):
         r = r._revlog
     if opts['dump_new']:
         if util.safehasattr(r.index, "nodemap_data_all"):