fix package

src/victron_energy_price_calculator/DistributionCostFactory.py

@@ -10,10 +10,10 @@ def create(name: str, /, **kwargs: Any) -> DistributionCostBase:
       module: DistributionProvider.<Name>Provider
       class:  <Name>Provider
     Example: create("TauronG13", rates=...)
-             -> DistributionCostProvider.TauronG13Provider.TauronG13Provider(...)
+             -> .DistributionCostProvider.TauronG13Provider.TauronG13Provider(...)
     """
     safe = "".join(ch for ch in name if ch.isalnum() or ch == "_")
-    module_name = f"DistributionCostProvider.{safe}Provider"
+    module_name = f".DistributionCostProvider.{safe}Provider"
     class_name  = f"{safe}Provider"
 
     try:

src/victron_energy_price_calculator/EnergyPriceFactory.py

@@ -7,12 +7,12 @@ from .EnergyPrice import EnergyPriceBase
 def create(name: str, /, **kwargs: Any) -> EnergyPriceBase:
     """
     Convention:
-      module: EnergyPriceProvider.<Name>Provider
+      module: .EnergyPriceProvider.<Name>Provider
       class:  <Name>Provider
     Example: create("TauronG13", rates={...})
     """
     safe = "".join(ch for ch in name if ch.isalnum() or ch == "_")
-    module_name = f"EnergyPriceProvider.{safe}Provider"
+    module_name = f".EnergyPriceProvider.{safe}Provider"
     class_name  = f"{safe}Provider"
 
     try: