diff --git a/scripts/build_demand_profiles.py b/scripts/build_demand_profiles.py
index 6e843e104..3686364b2 100644
--- a/scripts/build_demand_profiles.py
+++ b/scripts/build_demand_profiles.py
@@ -50,7 +50,13 @@
 import pypsa
 import scipy.sparse as sparse
 import xarray as xr
-from _helpers import configure_logging, create_logger, read_csv_nafix, read_osm_config, BASE_DIR
+from _helpers import (
+    BASE_DIR,
+    configure_logging,
+    create_logger,
+    read_csv_nafix,
+    read_osm_config,
+)
 from shapely.prepared import prep
 from shapely.validation import make_valid
 
diff --git a/scripts/build_renewable_profiles.py b/scripts/build_renewable_profiles.py
index 4fcc80d9a..2dce6032e 100644
--- a/scripts/build_renewable_profiles.py
+++ b/scripts/build_renewable_profiles.py
@@ -202,7 +202,7 @@
 import pandas as pd
 import progressbar as pgb
 import xarray as xr
-from _helpers import configure_logging, create_logger, BASE_DIR
+from _helpers import BASE_DIR, configure_logging, create_logger
 from add_electricity import load_powerplants
 from dask.distributed import Client
 from pypsa.geo import haversine
diff --git a/scripts/download_osm_data.py b/scripts/download_osm_data.py
index f0b77a3bf..c327a7ae4 100644
--- a/scripts/download_osm_data.py
+++ b/scripts/download_osm_data.py
@@ -30,7 +30,7 @@
 import shutil
 from pathlib import Path
 
-from _helpers import configure_logging, create_logger, read_osm_config, BASE_DIR
+from _helpers import BASE_DIR, configure_logging, create_logger, read_osm_config
 from earth_osm import eo
 
 logger = create_logger(__name__)
@@ -99,7 +99,9 @@ def convert_iso_to_geofk(
 
     run = snakemake.config.get("run", {})
     RDIR = run["name"] + "/" if run.get("name") else ""
-    store_path_resources = Path.joinpath(Path(BASE_DIR), "resources", RDIR, "osm", "raw")
+    store_path_resources = Path.joinpath(
+        Path(BASE_DIR), "resources", RDIR, "osm", "raw"
+    )
     store_path_data = Path.joinpath(Path(BASE_DIR), "data", "osm")
     country_list = country_list_to_geofk(snakemake.params.countries)
 
diff --git a/scripts/prepare_network.py b/scripts/prepare_network.py
index a008611cc..47d847b78 100755
--- a/scripts/prepare_network.py
+++ b/scripts/prepare_network.py
@@ -65,7 +65,7 @@
 import pandas as pd
 import pypsa
 import requests
-from _helpers import configure_logging, create_logger, BASE_DIR
+from _helpers import BASE_DIR, configure_logging, create_logger
 from add_electricity import load_costs, update_transmission_costs
 
 idx = pd.IndexSlice
@@ -89,7 +89,10 @@ def download_emission_data():
                 file.write(rq.content)
         file_path = os.path.join(BASE_DIR, "data/co2.zip")
         with ZipFile(file_path, "r") as zipObj:
-            zipObj.extract("v60_CO2_excl_short-cycle_org_C_1970_2018.xls", os.path.join(BASE_DIR, "data"))
+            zipObj.extract(
+                "v60_CO2_excl_short-cycle_org_C_1970_2018.xls",
+                os.path.join(BASE_DIR, "data"),
+            )
         os.remove(file_path)
         return "v60_CO2_excl_short-cycle_org_C_1970_2018.xls"
     except:
diff --git a/scripts/retrieve_databundle_light.py b/scripts/retrieve_databundle_light.py
index ed5ea9055..297599d4a 100644
--- a/scripts/retrieve_databundle_light.py
+++ b/scripts/retrieve_databundle_light.py
@@ -89,11 +89,11 @@
 import pandas as pd
 import yaml
 from _helpers import (
+    BASE_DIR,
     configure_logging,
     create_country_list,
     create_logger,
     progress_retrieve,
-    BASE_DIR
 )
 from google_drive_downloader import GoogleDriveDownloader as gdd
 from tqdm import tqdm