scenarios metadata fixes

bw_scenarios/importer.py

@@ -4,7 +4,6 @@
 from pathlib import Path
 
 from .scenario import Scenario
-from .strategies import separate_code_from_key
 
 
 class SDFImporter:
@@ -133,8 +132,9 @@ def scenario_names(self) -> list:
         return [
             col
             for col in self.data.columns
-            if col
-            not in self.TO_FIELDS + self.FROM_FIELDS + ["default", "from id", "to id"]
+            if not col.startswith("to ")
+            and not col.startswith("from ")
+            and col not in ["flow type", "default"]
         ]
 
     def apply_strategies(self):

bw_scenarios/meta.py

@@ -1,8 +1,13 @@
 from bw2data.serialization import SerializedDict
-
+from bw2data.configuration import config
 
 class Scenarios(SerializedDict):
     filename = "scenarios.json"
 
+    def serialize(self, filepath=None):
+        super().serialize(filepath)
+
 
 scenarios = Scenarios()
+
+config.metadata.extend([scenarios])

bw_scenarios/scenario.py

@@ -27,3 +27,6 @@ def add_exchange(self, from_id, to_id, exchange_type, amount):
     def save(self):
         self.write(self.exchanges)
 
+    def process(self, **extra_metadata):
+        return
+