Minor bugfixes

pylablib/core/gui/value_handling.py

@@ -247,16 +247,16 @@ class StandardValueHandler(IValueHandler):
     """
     def __init__(self, widget, default_name=None):
         super().__init__(widget)
-        self.get_value_kind=get_method_kind(getattr(self.widget,"get_value",None))
+        self.get_value_kind=get_method_kind(getattr(self.widget,"get_value")) if _hasattr(self.widget,"get_value") else None
         self.get_all_values_kind="simple" if _hasattr(self.widget,"get_all_values") else None
         if not (self.get_value_kind or self.get_all_values_kind):
             raise ValueError("can't find default getter for widget {}".format(self.widget))
-        self.set_value_kind=get_method_kind(getattr(self.widget,"set_value",None),add_args=1)
+        self.set_value_kind=get_method_kind(getattr(self.widget,"set_value"),add_args=1) if _hasattr(self.widget,"set_value") else None
         self.set_all_values_kind="simple" if _hasattr(self.widget,"set_all_values") else None
         if not (self.set_value_kind or self.set_all_values_kind):
             raise ValueError("can't find default setter for widget {}".format(self.widget))
-        self.repr_value_kind=get_method_kind(getattr(self.widget,"repr_value",None),add_args=1)
-        self.get_handler_kind=get_method_kind(getattr(self.widget,"get_handler",None))
+        self.repr_value_kind=get_method_kind(getattr(self.widget,"repr_value"),add_args=1) if _hasattr(self.widget,"repr_value") else None
+        self.get_handler_kind=get_method_kind(getattr(self.widget,"get_handler")) if _hasattr(self.widget,"get_handler") else None
         self.default_name=default_name
     def get_value(self, name=None):
         if name is None:
@@ -511,9 +511,9 @@ class StandardIndicatorHandler(IIndicatorHandler):
     def __init__(self, widget, default_name=None):
         IIndicatorHandler.__init__(self)
         self.widget=widget
-        self.get_indicator_kind=get_method_kind(getattr(self.widget,"get_indicator",None))
+        self.get_indicator_kind=get_method_kind(getattr(self.widget,"get_indicator")) if _hasattr(self.widget,"get_indicator") else None
         self.get_all_indicators_kind="simple" if _hasattr(self.widget,"get_all_indicators") else None
-        self.set_indicator_kind=get_method_kind(getattr(self.widget,"set_indicator",None),add_args=1)
+        self.set_indicator_kind=get_method_kind(getattr(self.widget,"set_indicator"),add_args=1) if _hasattr(self.widget,"set_indicator") else None
         self.set_all_indicators_kind="simple" if _hasattr(self.widget,"set_all_indicators") else None
         self.default_name=default_name
     def get_value(self, name=None):

pylablib/gui/widgets/plotters/line_plotter.py

@@ -5,6 +5,7 @@
 """
 
 import pyqtgraph
+from ....core.utils import dictionary
 
 
 class LinePlotter(pyqtgraph.PlotWidget):
@@ -88,4 +89,10 @@ def update_traces(self, only_new_data=True):
                     if len(t):
                         self._traces[n][0].setData(t[:,0],t[:,1])
                     else:
-                        self._traces[n][0].setData([],[])
+                        self._traces[n][0].setData([],[])
+
+    def get_all_values(self):
+        """Dummy method to satisfy child widget requirements"""
+        return dictionary.Dictionary()
+    def set_all_values(self, values):
+        """Dummy method to satisfy child widget requirements"""

pylablib/thread/device_thread.py

@@ -312,7 +312,7 @@ def add_device_command(self, name, command_name=None, post_update="update_parame
         `post_update` is a string or a list of strings which specifies which update methods to call after the command.
         Check if the devices is opened, do nothing if it is not.
         """
-        if not isinstance(post_update,list):
+        if not isinstance(post_update,(list,tuple)):
             post_update=[] if post_update is None else [post_update]
         command_name=command_name or name
         def command(*args, **kwargs):