Fix code checks

Author: sanggon6107

pandas/core/generic.py

@@ -10111,7 +10111,7 @@ def mask(
                 )
             ):
                 if not cond.flags.writeable:
-                    cond.setflags(write=1)
+                    cond.setflags(write=True)
                 cond[isna(cond)] = False
                 cond = cond.astype(bool)