fixup! [refactor] Avoid if-else def by suffixing different FUSE version implementations

Author: mxmlnkn

mfusepy.py

@@ -1171,9 +1171,9 @@ class as is to Operations, instead of just the fh field.
             if check_name in ["ftruncate", "fgetattr"]:
                 check_name = check_name[1:]
 
-            user_callback = getattr(operations, check_name, None)
+            value = getattr(operations, check_name, None)
             if (
-                user_callback is None or getattr(user_callback, 'libfuse_ignore', False)
+                value is None or getattr(value, 'libfuse_ignore', False)
             ) and check_name not in callbacks_to_always_add:
                 continue
 
@@ -1186,18 +1186,18 @@ class as is to Operations, instead of just the fh field.
 
                 if method is not None and hasattr(self, name):
                     raise RuntimeError(
-                        f"Internal Error: Only either suffixed or non-suffixed methods must exist!"
-                        "Found both for '{name}'."
+                        "Internal Error: Only either suffixed or non-suffixed methods must exist!"
+                        f"Found both for '{name}'."
                     )
 
                 if method is None:
                     method = getattr(self, name, None)
                     if method is None:
                         raise RuntimeError(f"Internal Error: Method wrapper for FUSE callback '{name}' is missing!")
 
-                user_callback = prototype(functools.partial(self._wrapper, method))
+                value = prototype(functools.partial(self._wrapper, method))
 
-            setattr(fuse_ops, name, user_callback)
+            setattr(fuse_ops, name, value)
 
         try:
             old_handler = signal(SIGINT, SIG_DFL)