diff --git a/ihatemoney/models.py b/ihatemoney/models.py
index ef3f5c87..50f919b4 100644
--- a/ihatemoney/models.py
+++ b/ihatemoney/models.py
@@ -322,7 +322,7 @@ class Project(db.Model):
         db.session.add(self)
         db.session.commit()
 
-    def import_bills(self, bills: list[dict]):
+    def import_bills(self, bills: list):
         """Import bills from a list of dictionaries"""
         # Add members not already in the project
         members_project = [str(m) for m in self.members]
@@ -621,14 +621,14 @@ class Bill(db.Model):
     def __init__(
         self,
         amount: float,
-        date: object = None,
+        date: datetime = None,
         external_link: str = "",
         original_currency: str = "",
-        owers: list[Person] = [],
+        owers: list = [],
         payer_id: int = None,
         project_default_currency: str = "",
         what: str = "",
-    ) -> None:
+    ):
         super().__init__()
         self.amount = amount
         self.date = date
diff --git a/ihatemoney/tests/main_test.py b/ihatemoney/tests/main_test.py
index bd5e7ddc..fac655d3 100644
--- a/ihatemoney/tests/main_test.py
+++ b/ihatemoney/tests/main_test.py
@@ -153,7 +153,7 @@ class ModelsTestCase(IhatemoneyTestCase):
             },
         )
 
-        project = self.get_project_by_name(name="raclette")
+        project = models.Project.query.get_by_name(name="raclette")
         zorglub = models.Person.query.get_by_name(name="zorglub", project=project)
         zorglub_bills = models.Bill.query.options(
             orm.subqueryload(models.Bill.owers)
diff --git a/ihatemoney/web.py b/ihatemoney/web.py
index f0d8d709..02d73648 100644
--- a/ihatemoney/web.py
+++ b/ihatemoney/web.py
@@ -13,7 +13,6 @@ from functools import wraps
 import json
 import os
 
-from dateutil.parser import parse
 from dateutil.relativedelta import relativedelta
 from flask import (
     Blueprint,
@@ -454,7 +453,7 @@ def import_project():
             elif data.mimetype == "text/csv":
                 try:
                     bills = csv2list_of_dicts(data)
-                except Exception as b:
+                except Exception:
                     raise ValueError(_("Unable to parse CSV"))
             else:
                 raise ValueError("Unsupported file type")
@@ -484,7 +483,8 @@ def import_project():
                 if len(currencies - {CurrencyConverter.no_currency}) >= 2:
                     raise ValueError(
                         _(
-                            "Cannot add bills in multiple currencies to a project without default currency"
+                            "Cannot add bills in multiple currencies to a project without default "
+                            "currency"
                         )
                     )
                 # Strip currency from bills (since it's the same for every bill)