diff --git a/app/interface/forms.py b/app/interface/forms.py
index 872a4de..002e136 100644
--- a/app/interface/forms.py
+++ b/app/interface/forms.py
@@ -1,6 +1,6 @@
 from django import forms
 from crispy_forms.helper import FormHelper
-from crispy_forms.layout import Submit, HTML, Div
+from crispy_forms.layout import Submit, HTML
 from crispy_bulma.layout import FormGroup
 
 from . import models, fields
diff --git a/app/interface/models.py b/app/interface/models.py
index dbf3fe4..86e1622 100644
--- a/app/interface/models.py
+++ b/app/interface/models.py
@@ -8,9 +8,7 @@ from byostorage.user import BYOStorage
 
 import random
 
-from urllib.parse import urlparse
 
-import os.path
 from .utils import sign_data
 
 MEDIA_TYPES = [
diff --git a/app/interface/tests/test_access.py b/app/interface/tests/test_access.py
index 05d1c9f..96c4861 100644
--- a/app/interface/tests/test_access.py
+++ b/app/interface/tests/test_access.py
@@ -1,7 +1,5 @@
-from django.test import TestCase, Client
 
-from interface import models, utils
-from django.contrib.auth.models import User
+from interface import models
 
 from . import AccessTestCase
 
diff --git a/app/library/indexer/whoosh.py b/app/library/indexer/whoosh.py
index f654354..fad6cd7 100644
--- a/app/library/indexer/whoosh.py
+++ b/app/library/indexer/whoosh.py
@@ -1,15 +1,13 @@
 from whoosh.index import create_in, open_dir, EmptyIndexError, Index
 from whoosh.analysis import StemmingAnalyzer, CharsetFilter
 from whoosh.support.charset import accent_map
-from whoosh.fields import Schema, ID, TEXT, KEYWORD, STORED, NUMERIC
+from whoosh.fields import Schema, TEXT, KEYWORD, NUMERIC
 from whoosh.qparser import QueryParser
 from whoosh.query import Term, NullQuery
 
-from library.models import Work
 
 from typing import Any
 from django.conf import settings
-from django.db.models import QuerySet
 import os.path
 import shutil
 
diff --git a/app/library/management/commands/import_works.py b/app/library/management/commands/import_works.py
index 1a9ba17..00c0b63 100644
--- a/app/library/management/commands/import_works.py
+++ b/app/library/management/commands/import_works.py
@@ -1,4 +1,4 @@
-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 import argparse
 import csv
 
diff --git a/app/library/management/commands/index.py b/app/library/management/commands/index.py
index 07f90b8..4657152 100644
--- a/app/library/management/commands/index.py
+++ b/app/library/management/commands/index.py
@@ -1,4 +1,4 @@
-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 
 from library import models
 from library.indexer import model_search, index_works, indexer
diff --git a/app/library/models.py b/app/library/models.py
index a819dfa..a757d81 100644
--- a/app/library/models.py
+++ b/app/library/models.py
@@ -1,11 +1,9 @@
-from os import SCHED_OTHER
-from django.conf import settings
 from django.shortcuts import resolve_url
 from django.db import models
 from django.utils.text import slugify
 from django.utils.timezone import now
 from django.utils.functional import cached_property
-from django.db.models import Q, Count, Min, Max
+from django.db.models import Count, Min, Max
 
 import re
 import os.path
@@ -365,7 +363,7 @@ class Work(models.Model):
 
     def unassigned_instruments(self):
         assigned = set(self.assigned_instruments())
-        return [x for x in self.orchestration.as_list() if not x[0] in assigned]
+        return [x for x in self.orchestration.as_list() if x[0] not in assigned]
 
     def music_tags(self):
         tags = dict(self.orchestration.as_list())
diff --git a/app/library/tests.py b/app/library/tests.py
index 0b8246c..065b4ac 100644
--- a/app/library/tests.py
+++ b/app/library/tests.py
@@ -2,7 +2,6 @@ from interface.tests import AccessTestCase
 
 from byostorage.user import UserStorage
 from . import models
-from .views.api import WorkSerializer
 
 import tempfile
 import json
diff --git a/app/library/urls.py b/app/library/urls.py
index 3f8ee47..e13d6ff 100644
--- a/app/library/urls.py
+++ b/app/library/urls.py
@@ -1,6 +1,4 @@
-from django.urls import path, include
-from django.contrib.auth import views as auth_views
-from rest_framework import routers
+from django.urls import path
 
 from . import views
 
diff --git a/app/library/views/api.py b/app/library/views/api.py
index 84805c8..475288d 100644
--- a/app/library/views/api.py
+++ b/app/library/views/api.py
@@ -35,14 +35,13 @@ class WorkExportView(EnsembleMixin, WorkMixin, View):
 
 from interface.views import AuthorizedResourceMixin
 
-from rest_framework import routers, serializers, viewsets
+from rest_framework import serializers
 from rest_framework.exceptions import APIException
 
 from library.models import Collection, Work, Document, Section, WorkMeta
 
 
 import requests
-from io import BytesIO
 import urllib
 import shutil
 import os.path