cephfs-shell: Fix flake8 use != to compare str literals warning

Fixes: https://tracker.ceph.com/issues/40191
Signed-off-by: Varsha Rao <varao@redhat.com>

diff --git a/src/tools/cephfs/cephfs-shell b/src/tools/cephfs/cephfs-shell
index 1c3f187418c3069e5568d75b6720f09b6690e63c..46076112a5f599836ba0dbbcf6694669f3515ac2 100755 (executable)
--- a/src/tools/cephfs/cephfs-shell
+++ b/src/tools/cephfs/cephfs-shell
@@ -413,7 +413,7 @@ class CephFSShell(Cmd):
 
     class ModeAction(argparse.Action):
         def __init__(self, option_strings, dest, nargs=None, **kwargs):
-            if nargs is not None and nargs is not '?':
+            if nargs is not None and nargs != '?':
                 raise ValueError("more than one modes not allowed")
             super().__init__(option_strings, dest, **kwargs)