revert changes to _get / _set_wrapper in ParameterBase

This private api is used in zhinst qcodes

https://github.com/zhinst/zhinst-qcodes/blob/main/src/zhinst/qcodes/qcodes_adaptions.py#L202

Author: jenshnielsen

src/qcodes/parameters/parameter.py

@@ -287,7 +287,9 @@ def _set_manual_parameter(
                     exec_str=exec_str_ask,
                 )
             self._gettable = True
-            self.get = self._wrap_get()
+            # mypy resolves the type of self.get_raw to object here.
+            # this may be resolvable if Command above is correctly wrapped in MethodType
+            self.get = self._wrap_get(self.get_raw)  # type: ignore[arg-type]
 
         if self.settable and set_cmd not in (None, False):
             raise TypeError(
@@ -317,7 +319,9 @@ def _set_manual_parameter(
                     arg_count=1, cmd=set_cmd, exec_str=exec_str_write
                 )
             self._settable = True
-            self.set = self._wrap_set()
+            # mypy resolves the type of self.get_raw to object here.
+            # this may be resolvable if Command above is correctly wrapped in MethodType
+            self.set = self._wrap_set(self.set_raw)  # type: ignore[arg-type]
 
         self._meta_attrs.extend(["label", "unit", "vals"])
 

src/qcodes/parameters/parameter_base.py

@@ -258,7 +258,7 @@ def __init__(
         )
         self._gettable = False
         if implements_get_raw:
-            self.get = self._wrap_get()
+            self.get = self._wrap_get(self.get_raw)
             self._gettable = True
         elif hasattr(self, "get"):
             raise RuntimeError(
@@ -273,7 +273,7 @@ def __init__(
         )
         self._settable: bool = False
         if implements_set_raw:
-            self.set = self._wrap_set()
+            self.set = self._wrap_set(self.set_raw)
             self._settable = True
         elif hasattr(self, "set"):
             raise RuntimeError(
@@ -647,9 +647,10 @@ def _from_raw_value_to_value(self, raw_value: ParamRawDataType) -> ParamDataType
         return value
 
     def _wrap_get(
-        self,
+        self, get_function: Callable[..., ParamRawDataType]
     ) -> Callable[..., ParamDataType]:
-        @wraps(self.get_raw)
+
+        @wraps(get_function)
         def get_wrapper(*args: Any, **kwargs: Any) -> ParamDataType:
             if not self.gettable:
                 raise TypeError("Trying to get a parameter that is not gettable.")
@@ -659,7 +660,7 @@ def get_wrapper(*args: Any, **kwargs: Any) -> ParamDataType:
                 )
             try:
                 # There might be cases where a .get also has args/kwargs
-                raw_value = self.get_raw(*args, **kwargs)
+                raw_value = get_function(*args, **kwargs)
 
                 value = self._from_raw_value_to_value(raw_value)
 
@@ -676,10 +677,8 @@ def get_wrapper(*args: Any, **kwargs: Any) -> ParamDataType:
 
         return get_wrapper
 
-    def _wrap_set(
-        self,
-    ) -> Callable[..., None]:
-        @wraps(self.set_raw)
+    def _wrap_set(self, set_function: Callable[..., None]) -> Callable[..., None]:
+        @wraps(set_function)
         def set_wrapper(value: ParamDataType, **kwargs: Any) -> None:
             try:
                 if not self.settable:
@@ -712,7 +711,7 @@ def set_wrapper(value: ParamDataType, **kwargs: Any) -> None:
                     # Start timer to measure execution time of set_function
                     t0 = time.perf_counter()
 
-                    self.set_raw(raw_val_step, **kwargs)
+                    set_function(raw_val_step, **kwargs)
 
                     # Update last set time (used for calculating delays)
                     self._t_last_set = time.perf_counter()

tests/parameter/test_get_latest.py

@@ -170,7 +170,7 @@ class LocalParameter(ParameterBase):
         def __init__(self, *args: Any, **kwargs: Any):
             super().__init__(*args, **kwargs)
             self.set_raw = lambda x: x  # type: ignore[method-assign]
-            self.set = self._wrap_set()
+            self.set = self._wrap_set(self.set_raw)
 
     localparameter = LocalParameter('test_param',
                                     None,

tests/parameter/test_parameter_cache.py

@@ -232,7 +232,7 @@ class LocalParameter(ParameterBase):
         def __init__(self, *args: Any, **kwargs: Any):
             super().__init__(*args, **kwargs)
             self.set_raw = lambda x: x  # type: ignore[method-assign]
-            self.set = self._wrap_set()
+            self.set = self._wrap_set(self.set_raw)
 
     local_parameter = LocalParameter('test_param',
                                      None,