[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

simpeg_drivers/components/factories/directives_factory.py

@@ -527,7 +527,7 @@ def assemble_data_keywords_potential_fields(
         channels = [None]
         kwargs = {
             "data_type": {
-                comp: {channel: dtype for channel in channels}
+                comp: dict.fromkeys(channels, dtype)
                 for comp, dtype in inversion_object.observed_data_types.items()
             },
             "transforms": [
@@ -579,7 +579,7 @@ def assemble_data_keywords_dcip(
         component = "dc" if is_dc else "ip"
         kwargs = {
             "data_type": {
-                comp: {channel: dtype for channel in channels}
+                comp: dict.fromkeys(channels, dtype)
                 for comp, dtype in inversion_object.observed_data_types.items()
             },
             "transforms": [

simpeg_drivers/params.py

@@ -419,7 +419,7 @@ def property_group_data(self, property_group: PropertyGroup):
         """
         frequencies = self.data_object.channels
         if property_group is None:
-            return {f: None for f in frequencies}
+            return dict.fromkeys(frequencies)
 
         data = {}
         group = next(