diff --git a/server/szurubooru/func/auth.py b/server/szurubooru/func/auth.py
index 55b4db39..c9740fe0 100644
--- a/server/szurubooru/func/auth.py
+++ b/server/szurubooru/func/auth.py
@@ -1,13 +1,11 @@
 from typing import Tuple
-
 import hashlib
 import random
 from collections import OrderedDict
+from nacl import pwhash
 from nacl.exceptions import InvalidkeyError
-
 from szurubooru import config, model, errors, db
 from szurubooru.func import util
-from nacl import pwhash
 
 
 RANK_MAP = OrderedDict([
diff --git a/server/szurubooru/func/users.py b/server/szurubooru/func/users.py
index 2b744e28..5fe9f2ca 100644
--- a/server/szurubooru/func/users.py
+++ b/server/szurubooru/func/users.py
@@ -243,8 +243,10 @@ def update_user_password(user: model.User, password: str) -> None:
         raise InvalidPasswordError(
             'Password must satisfy regex %r.' % password_regex)
     user.password_salt = auth.create_password()
-    hash, revision = auth.get_password_hash(user.password_salt, password)
-    user.password_hash = hash
+    password_hash, revision = auth.get_password_hash(
+        user.password_salt,
+        password)
+    user.password_hash = password_hash
     user.password_revision = revision
 
 
diff --git a/server/szurubooru/migrations/env.py b/server/szurubooru/migrations/env.py
index 61b20f4e..59d031f6 100644
--- a/server/szurubooru/migrations/env.py
+++ b/server/szurubooru/migrations/env.py
@@ -38,8 +38,7 @@ def run_migrations_offline():
         url=url,
         target_metadata=target_metadata,
         literal_binds=True,
-        compare_type=True
-    )
+        compare_type=True)
 
     with alembic.context.begin_transaction():
         alembic.context.run_migrations()
@@ -61,8 +60,7 @@ def run_migrations_online():
         alembic.context.configure(
             connection=connection,
             target_metadata=target_metadata,
-            compare_type=True
-        )
+            compare_type=True)
 
         with alembic.context.begin_transaction():
             alembic.context.run_migrations()
diff --git a/server/szurubooru/migrations/versions/9ef1a1643c2a_update_user_table_for_hardened_passwords.py b/server/szurubooru/migrations/versions/9ef1a1643c2a_update_user_table_for_hardened_passwords.py
index 33aa9c93..084f196e 100644
--- a/server/szurubooru/migrations/versions/9ef1a1643c2a_update_user_table_for_hardened_passwords.py
+++ b/server/szurubooru/migrations/versions/9ef1a1643c2a_update_user_table_for_hardened_passwords.py
@@ -47,14 +47,17 @@ class User(Base):
 
 
 def upgrade():
-    op.alter_column('user', 'password_hash',
-                    existing_type=sa.VARCHAR(length=64),
-                    type_=sa.Unicode(length=128),
-                    existing_nullable=False)
-    op.add_column('user', sa.Column('password_revision',
-                                    sa.SmallInteger(),
-                                    nullable=True,
-                                    default=0))
+    op.alter_column(
+        'user',
+        'password_hash',
+        existing_type=sa.VARCHAR(length=64),
+        type_=sa.Unicode(length=128),
+        existing_nullable=False)
+    op.add_column('user', sa.Column(
+        'password_revision',
+        sa.SmallInteger(),
+        nullable=True,
+        default=0))
 
     session = sa.orm.session.Session(bind=op.get_bind())
     if session.query(User).count() >= 0:
@@ -69,13 +72,18 @@ def upgrade():
         session.flush()
     session.commit()
 
-    op.alter_column('user', 'password_revision',
-                    existing_nullable=True, nullable=False)
+    op.alter_column(
+        'user',
+        'password_revision',
+        existing_nullable=True,
+        nullable=False)
 
 
 def downgrade():
-    op.alter_column('user', 'password_hash',
-                    existing_type=sa.Unicode(length=128),
-                    type_=sa.VARCHAR(length=64),
-                    existing_nullable=False)
+    op.alter_column(
+        'user',
+        'password_hash',
+        existing_type=sa.Unicode(length=128),
+        type_=sa.VARCHAR(length=64),
+        existing_nullable=False)
     op.drop_column('user', 'password_revision')
diff --git a/server/szurubooru/model/user.py b/server/szurubooru/model/user.py
index be95b0b1..39c5a91b 100644
--- a/server/szurubooru/model/user.py
+++ b/server/szurubooru/model/user.py
@@ -25,8 +25,8 @@ class User(Base):
     name = sa.Column('name', sa.Unicode(50), nullable=False, unique=True)
     password_hash = sa.Column('password_hash', sa.Unicode(128), nullable=False)
     password_salt = sa.Column('password_salt', sa.Unicode(32))
-    password_revision = sa.Column('password_revision', sa.SmallInteger,
-                                  default=0, nullable=False)
+    password_revision = sa.Column(
+        'password_revision', sa.SmallInteger, default=0, nullable=False)
     email = sa.Column('email', sa.Unicode(64), nullable=True)
     rank = sa.Column('rank', sa.Unicode(32), nullable=False)
     avatar_style = sa.Column(
diff --git a/server/szurubooru/tests/conftest.py b/server/szurubooru/tests/conftest.py
index 44ded329..db7806e8 100644
--- a/server/szurubooru/tests/conftest.py
+++ b/server/szurubooru/tests/conftest.py
@@ -115,11 +115,12 @@ def config_injector():
 
 @pytest.fixture
 def user_factory():
-    def factory(name=None,
-                rank=model.User.RANK_REGULAR,
-                email='dummy',
-                password_salt=None,
-                password_hash=None):
+    def factory(
+            name=None,
+            rank=model.User.RANK_REGULAR,
+            email='dummy',
+            password_salt=None,
+            password_hash=None):
         user = model.User()
         user.name = name or get_unique_name()
         user.password_salt = password_salt or 'dummy'