diff --git a/example.csv b/example.csv
deleted file mode 100644
index 8b7a5d92dde262a65d9994f113d162d9a37e91ea..0000000000000000000000000000000000000000
--- a/example.csv
+++ /dev/null
@@ -1,5 +0,0 @@
-name,email,as_number,as_set,route_set,black_listed_as_sets,additional_routers,additional_bgp_speakers,partner_type,created_at
-Partner A,partnera@example.com,AS1234,,,"AS100,AS200",,"Router1,Router2",NREN,2024-03-14
-Partner B,partnerb@example.com,AS5678,,,"AS300,AS400",,"Router3,Router4",RE_PEER,2024-03-15
-Partner C,partnerc@example.com,AS91011,,,"AS500,AS600",,"Router5,Router6",PUBLIC_PEER,2024-03-16
-
diff --git a/gso/cli/imports.py b/gso/cli/imports.py
index 5ef0233c05361b4d4d97bc212789bd99d8ade120..64a6af56cdb691a15c796fc27fce8e0d297b7950 100644
--- a/gso/cli/imports.py
+++ b/gso/cli/imports.py
@@ -212,7 +212,7 @@ def import_partners_from_csv(file_path: Path) -> list[dict]:
 
 
 @app.command()
-def import_partners(file_path: str = typer.Argument(..., help="Path to the CSV file containing partners")):
+def import_partners(file_path: str = typer.Argument(..., help="Path to the CSV file containing partners")) -> None:
     """Import partners from a CSV file into the database."""
     typer.echo(f"Importing partners from {file_path} ...")
 
@@ -221,9 +221,7 @@ def import_partners(file_path: str = typer.Argument(..., help="Path to the CSV f
     try:
         for partner in partners:
             if partner.get("created_at"):
-                partner["created_at"] = datetime.strptime(partner["created_at"], "%Y-%m-%d").replace(
-                    tzinfo=UTC
-                )
+                partner["created_at"] = datetime.strptime(partner["created_at"], "%Y-%m-%d").replace(tzinfo=UTC)
 
             new_partner = PartnerTable(**partner)
             db.session.add(new_partner)
diff --git a/gso/services/partners.py b/gso/services/partners.py
index 01bb97cf559a609170c36799291cebe0be3b3dbb..f2080380e30773156af456daa080ae1e37f0a7bc 100644
--- a/gso/services/partners.py
+++ b/gso/services/partners.py
@@ -49,8 +49,6 @@ def create_partner(
         raise
     finally:
         db.session.close()
-    finally:
-        db.session.close()
 
 
 def delete_partner_by_name(name: str) -> None:
@@ -67,5 +65,3 @@ def delete_partner_by_name(name: str) -> None:
         raise
     finally:
         db.session.close()
-    finally:
-        db.session.close()
diff --git a/test/fixtures.py b/test/fixtures.py
index 891a936f8faad9f06f3b227cfa48806bcbb87842..9575cdfbbf4c88fec5f67e10e1707113ae971b8a 100644
--- a/test/fixtures.py
+++ b/test/fixtures.py
@@ -258,7 +258,8 @@ def iptrunk_subscription_factory(iptrunk_side_subscription_factory, faker, geant
         iptrunk_sides = iptrunk_sides or [iptrunk_side_a, iptrunk_side_b]
 
         iptrunk_subscription = IptrunkInactive.from_product_id(
-            product_id, customer_id=partner["partner_id"], insync=True)
+            product_id, customer_id=partner["partner_id"], insync=True
+        )
         iptrunk_subscription.iptrunk.geant_s_sid = geant_s_sid
         iptrunk_subscription.iptrunk.iptrunk_description = iptrunk_description
         iptrunk_subscription.iptrunk.iptrunk_type = iptrunk_type