Use dataclass decorator to tidy up code

notebooks/passenger_vehicle_co2_lca.py

@@ -66,64 +66,54 @@
 
 vehicles = {
     pvl.Vehicle(
-        [
-            "Liten bensinbil",
-            1500,
-            0,
-            0.05,
-            vehicle_manufacturing_cost,
-            battery_manufacturing_cost,
-            kgCO2_per_litre,
-            vehicle_life,
-        ]
+        name="Liten bensinbil",
+        weight=1500,
+        battery_capacity=0,
+        consumption_per_km=0.05,
+        co2_build_cost_per_kg=vehicle_manufacturing_cost,
+        co2_battery_build_cost_per_kWh=battery_manufacturing_cost,
+        co2_cost_per_consumption=kgCO2_per_litre,
+        vehicle_life_km=vehicle_life,
     ),
     pvl.Vehicle(
-        [
-            "Stor elbil",
-            2200,
-            125,
-            0.25,
-            vehicle_manufacturing_cost,
-            battery_manufacturing_cost,
-            kgCO2_per_kWh,
-            vehicle_life,
-        ]
+        name="Stor elbil",
+        weight=2200,
+        battery_capacity=125,
+        consumption_per_km=0.25,
+        co2_build_cost_per_kg=vehicle_manufacturing_cost,
+        co2_battery_build_cost_per_kWh=battery_manufacturing_cost,
+        co2_cost_per_consumption=kgCO2_per_kWh,
+        vehicle_life_km=vehicle_life,
     ),
     pvl.Vehicle(
-        [
-            "Liten elbil",
-            1500,
-            50,
-            0.15,
-            vehicle_manufacturing_cost,
-            battery_manufacturing_cost,
-            kgCO2_per_kWh,
-            vehicle_life,
-        ]
+        name="Liten elbil",
+        weight=1500,
+        battery_capacity=50,
+        consumption_per_km=0.15,
+        co2_build_cost_per_kg=vehicle_manufacturing_cost,
+        co2_battery_build_cost_per_kWh=battery_manufacturing_cost,
+        co2_cost_per_consumption=kgCO2_per_kWh,
+        vehicle_life_km=vehicle_life,
     ),
     pvl.Vehicle(
-        [
-            "Cykel",
-            10,
-            0,
-            0,
-            vehicle_manufacturing_cost,
-            battery_manufacturing_cost,
-            kgCO2_per_kWh,
-            vehicle_life,
-        ]
+        name="Cykel",
+        weight=10,
+        battery_capacity=0,
+        consumption_per_km=0,
+        co2_build_cost_per_kg=vehicle_manufacturing_cost,
+        co2_battery_build_cost_per_kWh=battery_manufacturing_cost,
+        co2_cost_per_consumption=kgCO2_per_kWh,
+        vehicle_life_km=vehicle_life,
     ),
     pvl.Vehicle(
-        [
-            "Elcykel",
-            15,
-            0.5,
-            0.005,
-            vehicle_manufacturing_cost,
-            battery_manufacturing_cost,
-            kgCO2_per_kWh,
-            vehicle_life,
-        ]
+        name="Elcykel",
+        weight=15,
+        battery_capacity=0.5,
+        consumption_per_km=0.005,
+        co2_build_cost_per_kg=vehicle_manufacturing_cost,
+        co2_battery_build_cost_per_kWh=battery_manufacturing_cost,
+        co2_cost_per_consumption=kgCO2_per_kWh,
+        vehicle_life_km=vehicle_life,
     ),
 }
 
@@ -139,8 +129,12 @@
 plt.show()
 
 # ## Fordonspark
-# Många av oss äger ju flera fordon. Hur mycket förbättrar vi situationen om vi cyklar 10km för varje 100km vi kör i vår stora bil? Här jämför vi
-# alternativ för omläggning av persontransporterna för någon som tidigare kört en liten bensinbil men som nu vill lägga om sitt liv för att minska klimatpåverkan. Efter ett antal mil med bilpendling bestämmer sig vår protagonist för att lägga om sitt liv för att minska sitt klimatavtryck, genom att:
+# Många av oss äger ju flera fordon. Hur mycket förbättrar vi situationen om
+# vi cyklar 10km för varje 100km vi kör i vår stora bil? Här jämför vi
+# alternativ för omläggning av persontransporterna för någon som tidigare kört
+# en liten bensinbil men som nu vill lägga om sitt liv för att minska klimatpåverkan.
+# Efter ett antal mil med bilpendling bestämmer sig vår protagonist för att lägga om
+# sitt liv för att minska sitt klimatavtryck, genom att:
 #
 # 1. Fortsätta köra samma bensinbil
 # 2. Köpa en stor elbil
@@ -176,30 +170,26 @@
 
 # And define additional vehicle combinations
 large_electric_and_bike = pvl.Vehicle(
-    [
-        "Stor elbil och cykel",
-        large_electric_car.weight + bike.weight,
-        large_electric_car.battery_capacity + bike.battery_capacity,
-        large_electric_car.consumption_per_km * (1 - fraction_bike_rides)
-        + bike.consumption_per_km * fraction_bike_rides,
-        vehicle_manufacturing_cost,
-        battery_manufacturing_cost,
-        kgCO2_per_kWh,
-        vehicle_life,
-    ]
+    name="Stor elbil och cykel",
+    weight=large_electric_car.weight + bike.weight,
+    battery_capacity=large_electric_car.battery_capacity + bike.battery_capacity,
+    consumption_per_km=large_electric_car.consumption_per_km * (1 - fraction_bike_rides)
+    + bike.consumption_per_km * fraction_bike_rides,
+    co2_build_cost_per_kg=vehicle_manufacturing_cost,
+    co2_battery_build_cost_per_kWh=battery_manufacturing_cost,
+    co2_cost_per_consumption=kgCO2_per_kWh,
+    vehicle_life_km=vehicle_life,
 )
 small_electric_and_bike = pvl.Vehicle(
-    [
-        "Liten elbil och cykel",
-        small_electric_car.weight + bike.weight,
-        small_electric_car.battery_capacity + bike.battery_capacity,
-        small_electric_car.consumption_per_km * (1 - fraction_bike_rides)
-        + bike.consumption_per_km * fraction_bike_rides,
-        vehicle_manufacturing_cost,
-        battery_manufacturing_cost,
-        kgCO2_per_kWh,
-        vehicle_life,
-    ]
+    name="Liten elbil och cykel",
+    weight=small_electric_car.weight + bike.weight,
+    battery_capacity=small_electric_car.battery_capacity + bike.battery_capacity,
+    consumption_per_km=small_electric_car.consumption_per_km * (1 - fraction_bike_rides)
+    + bike.consumption_per_km * fraction_bike_rides,
+    co2_build_cost_per_kg=vehicle_manufacturing_cost,
+    co2_battery_build_cost_per_kWh=battery_manufacturing_cost,
+    co2_cost_per_consumption=kgCO2_per_kWh,
+    vehicle_life_km=vehicle_life,
 )
 
 # Define the scenarios as described above

pyproject.toml

@@ -12,7 +12,7 @@ authors = [
     { name = "IFK", email = "[email protected]" },
 ]
 requires-python = ">=3.9"
-dependencies = ["pyscbwrapper", "requests", "numpy", "pandas ~= 2.2"]
+dependencies = ["pyscbwrapper", "requests", "numpy", "pandas ~= 2.2", "dataclasses ~= 0.6"]
 
 [project.optional-dependencies]
 lint = [
@@ -33,6 +33,7 @@ dev = [
     "pre-commit ~= 2.20",
     "ipykernel ~= 6.26",
     "matplotlib ~= 3.8",
+    "dataclasses ~= 0.6",
 ]
 
 [tool.setuptools.packages.find]

src/ifk_analyses/objects/personal_vehicle_lca.py

@@ -1,19 +1,20 @@
-"""Backend data class for vehicle."""
+"""Backend data class and some methods for vehicle."""
 
+from dataclasses import dataclass
 
+
+@dataclass(frozen=True)
 class Vehicle:
     """Class for vehicles."""
 
-    def __init__(self, data) -> None:
-        """Initialization."""
-        self.name = data[0]
-        self.weight = data[1]
-        self.battery_capacity = data[2]
-        self.consumption_per_km = data[3]
-        self.co2_build_cost_per_kg = data[4]
-        self.co2_battery_build_cost_per_kWh = data[5]
-        self.co2_cost_per_consumption = data[6]
-        self.vehicle_life_km = data[7]
+    name: str
+    weight: int
+    battery_capacity: int
+    consumption_per_km: int
+    co2_build_cost_per_kg: int
+    co2_battery_build_cost_per_kWh: int
+    co2_cost_per_consumption: int
+    vehicle_life_km: int
 
 
 def co2analysis(car: Vehicle, driven_distance, co2debt):