Fix permission error

Author: romainsacchi

premise/__init__.py

@@ -1,5 +1,5 @@
 __all__ = ("NewDatabase", "clear_cache", "get_regions_definition")
-__version__ = (2, 1, 0, "dev4")
+__version__ = (2, 1, 0, "dev5")
 
 
 from premise.new_database import NewDatabase

premise/logger.py

@@ -58,4 +58,12 @@ def empty_log_files():
     for file in DIR_LOG_REPORT.iterdir():
         # if suffix is ".log"
         if file.suffix == ".log":
-            file.unlink()
+            try:
+                file.unlink()
+            except PermissionError:
+                try:
+                    # instead, let's empty the file
+                    with open(file, "w") as f:
+                        f.write("")
+                except PermissionError:
+                    pass

premise/new_database.py

@@ -1042,10 +1042,18 @@ def write_db_to_matrices(self, filepath: str = None):
 
         """
 
+        def scenario_name(scenario):
+            name = scenario["pathway"]
+
+            if "external scenarios" in scenario:
+                for external in scenario["external scenarios"]:
+                    name += f"-{external['scenario']}"
+            return name
+
         if filepath is not None:
             if isinstance(filepath, str):
                 filepath = [
-                    (Path(filepath) / s["model"] / s["pathway"] / str(s["year"]))
+                    (Path(filepath) / s["model"] / scenario_name(s) / str(s["year"]))
                     for s in self.scenarios
                 ]
             elif isinstance(filepath, list):
@@ -1072,7 +1080,6 @@ def write_db_to_matrices(self, filepath: str = None):
                 keep_uncertainty_data=self.keep_uncertainty_data,
             )
             Export(scenario, filepath[s], self.version).export_db_to_matrices()
-            del scenario["database"]
 
         # generate scenario report
         self.generate_scenario_report()

premise/transformation.py

@@ -310,23 +310,6 @@ def find_fuel_efficiency(
             print(
                 f"Warning: {dataset['name'], dataset['location']} has no energy input"
             )
-            for exc in dataset["exchanges"]:
-                print(
-                    exc["type"],
-                    exc["name"],
-                    exc["amount"],
-                    exc.get("product"),
-                    exc["unit"],
-                )
-            from pprint import pprint
-
-            print()
-            pprint(fuel_filters)
-            print()
-            pprint(fuel_specs)
-            print()
-            pprint(fuel_map_reverse)
-            print()
 
     if energy_input != 0 and float(energy_out) != 0:
         current_efficiency = float(energy_out) / energy_input

premise/transport.py

@@ -517,26 +517,6 @@ def create_vehicle_markets(self) -> list:
         Create vehicle market (fleet average) datasets.
         """
 
-        # # create and regionalize vehicle datasets
-        # vehicle_datasets = list(ws.get_many(
-        #     self.database,
-        #     ws.either(*[
-        #         ws.contains("name", size)
-        #         for size in self.mapping[self.vehicle_type]["sizes"]
-        #     ]),
-        #     ws.contains("name", self.vehicle_type),
-        #     ws.equals("unit", "unit")
-        # ))
-        #
-        # for ds in vehicle_datasets:
-        #     new_vehicle_datasets = self.fetch_proxies(
-        #         subset = vehicle_datasets,
-        #         name=ds["name"],
-        #         ref_prod=ds["reference product"],
-        #     )
-        #
-        #     self.database.extend(new_vehicle_datasets.values())
-
         # create and regionalize transport datasets
         filters = [
             ws.either(

premise/utils.py

@@ -357,6 +357,9 @@ def dump_database(scenario):
     :param scenario: scenario dictionary
     """
 
+    if "database filepath" in scenario:
+        return scenario
+
     # generate random name
     name = f"{uuid.uuid4().hex}.pickle"
     # dump as pickle
@@ -374,6 +377,9 @@ def load_database(scenario):
     :param scenario: scenario dictionary
     """
 
+    if "database" in scenario:
+        return scenario
+
     filepath = scenario["database filepath"]
 
     # load pickle