Added a tiny portion of black magic.

22 files changed, 229 insertions, 196 deletions

diff --git a/migrations/env.py b/migrations/env.py
index 7215fefe..4f31b751 100644
--- a/migrations/env.py
+++ b/migrations/env.py
@@ -9,15 +9,18 @@ config = context.config
 
 # Interpret the config file for Python logging.
 # This line sets up loggers basically.
-#fileConfig("./alembic.ini")
+# fileConfig("./alembic.ini")
 
 # add your model's MetaData object here
 # for 'autogenerate' support
 # from myapp import mymodel
 # target_metadata = mymodel.Base.metadata
 from flask import current_app
-config.set_main_option('sqlalchemy.url', current_app.config.get('SQLALCHEMY_DATABASE_URI'))
-target_metadata = current_app.extensions['migrate'].db.metadata
+
+config.set_main_option(
+    "sqlalchemy.url", current_app.config.get("SQLALCHEMY_DATABASE_URI")
+)
+target_metadata = current_app.extensions["migrate"].db.metadata
 
 
 # other values from the config, defined by the needs of env.py,
@@ -25,6 +28,7 @@ target_metadata = current_app.extensions['migrate'].db.metadata
 # my_important_option = config.get_main_option("my_important_option")
 # ... etc.
 
+
 def run_migrations_offline():
     """Run migrations in 'offline' mode.
 
@@ -43,6 +47,7 @@ def run_migrations_offline():
     with context.begin_transaction():
         context.run_migrations()
 
+
 def run_migrations_online():
     """Run migrations in 'online' mode.
 
@@ -52,18 +57,17 @@ def run_migrations_online():
     """
     connectable = engine_from_config(
         config.get_section(config.config_ini_section),
-        prefix='sqlalchemy.',
-        poolclass=pool.NullPool)
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
 
     with connectable.connect() as connection:
-        context.configure(
-            connection=connection,
-            target_metadata=target_metadata
-        )
+        context.configure(connection=connection, target_metadata=target_metadata)
 
         with context.begin_transaction():
             context.run_migrations()
 
+
 if context.is_offline_mode():
     run_migrations_offline()
 else:
diff --git a/migrations/versions/16f8fc3cf0cc_add_column_webpage_in_the_user_table.py b/migrations/versions/16f8fc3cf0cc_add_column_webpage_in_the_user_table.py
index 4ff875b7..1bfca7d0 100644
--- a/migrations/versions/16f8fc3cf0cc_add_column_webpage_in_the_user_table.py
+++ b/migrations/versions/16f8fc3cf0cc_add_column_webpage_in_the_user_table.py
@@ -7,8 +7,8 @@ Create Date: 2016-09-21 08:00:27.160357
 """
 
 # revision identifiers, used by Alembic.
-revision = '16f8fc3cf0cc'
-down_revision = '957d4c5b8ac9'
+revision = "16f8fc3cf0cc"
+down_revision = "957d4c5b8ac9"
 branch_labels = None
 depends_on = None
 
@@ -17,9 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('user', sa.Column('webpage',
-                                        sa.String(), default=""))
+    op.add_column("user", sa.Column("webpage", sa.String(), default=""))
 
 
 def downgrade():
-    op.drop_column('user', 'webpage')
+    op.drop_column("user", "webpage")
diff --git a/migrations/versions/17dcb75f3fe_changed_the_type_of_the_column_last_.py b/migrations/versions/17dcb75f3fe_changed_the_type_of_the_column_last_.py
index 035646c6..0da32e20 100644
--- a/migrations/versions/17dcb75f3fe_changed_the_type_of_the_column_last_.py
+++ b/migrations/versions/17dcb75f3fe_changed_the_type_of_the_column_last_.py
@@ -7,8 +7,8 @@ Create Date: 2015-03-10 14:20:53.676344
 """
 
 # revision identifiers, used by Alembic.
-revision = '17dcb75f3fe'
-down_revision = 'cde34831ea'
+revision = "17dcb75f3fe"
+down_revision = "cde34831ea"
 
 from datetime import datetime
 import conf
@@ -18,17 +18,31 @@ import sqlalchemy as sa
 
 def upgrade():
     unix_start = datetime(1970, 1, 1)
-    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
-        op.drop_column('feed', 'last_modified')
-        op.add_column('feed', sa.Column('last_modified', sa.String(),
-                      nullable=True, default=unix_start,
-                      server_default=str(unix_start)))
+    if "sqlite" not in conf.SQLALCHEMY_DATABASE_URI:
+        op.drop_column("feed", "last_modified")
+        op.add_column(
+            "feed",
+            sa.Column(
+                "last_modified",
+                sa.String(),
+                nullable=True,
+                default=unix_start,
+                server_default=str(unix_start),
+            ),
+        )
 
 
 def downgrade():
     unix_start = datetime(1970, 1, 1)
-    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
-        op.drop_column('feed', 'last_modified')
-        op.add_column('feed', sa.Column('last_modified', sa.DateTime(),
-                      nullable=True, default=unix_start,
-                      server_default=unix_start))
+    if "sqlite" not in conf.SQLALCHEMY_DATABASE_URI:
+        op.drop_column("feed", "last_modified")
+        op.add_column(
+            "feed",
+            sa.Column(
+                "last_modified",
+                sa.DateTime(),
+                nullable=True,
+                default=unix_start,
+                server_default=unix_start,
+            ),
+        )
diff --git a/migrations/versions/19bdaa6208e_add_icon_column.py b/migrations/versions/19bdaa6208e_add_icon_column.py
index 2efa376f..95274b63 100644
--- a/migrations/versions/19bdaa6208e_add_icon_column.py
+++ b/migrations/versions/19bdaa6208e_add_icon_column.py
@@ -7,8 +7,8 @@ Create Date: 2015-07-03 12:09:58.596010
 """
 
 # revision identifiers, used by Alembic.
-revision = '19bdaa6208e'
-down_revision = '422da2d0234'
+revision = "19bdaa6208e"
+down_revision = "422da2d0234"
 
 from alembic import op
 import sqlalchemy as sa
@@ -16,11 +16,11 @@ import sqlalchemy as sa
 
 def upgrade():
     ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('feed', sa.Column('icon', sa.String(), nullable=True))
+    op.add_column("feed", sa.Column("icon", sa.String(), nullable=True))
     ### end Alembic commands ###
 
 
 def downgrade():
     ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('feed', 'icon')
+    op.drop_column("feed", "icon")
     ### end Alembic commands ###
diff --git a/migrations/versions/1b750a389c22_remove_email_notification_column.py b/migrations/versions/1b750a389c22_remove_email_notification_column.py
index 71529855..34021deb 100644
--- a/migrations/versions/1b750a389c22_remove_email_notification_column.py
+++ b/migrations/versions/1b750a389c22_remove_email_notification_column.py
@@ -7,8 +7,8 @@ Create Date: 2015-02-25 23:01:07.253429
 """
 
 # revision identifiers, used by Alembic.
-revision = '1b750a389c22'
-down_revision = '48f561c0ce6'
+revision = "1b750a389c22"
+down_revision = "48f561c0ce6"
 
 import conf
 from alembic import op
@@ -16,10 +16,9 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
-        op.drop_column('feed', 'email_notification')
+    if "sqlite" not in conf.SQLALCHEMY_DATABASE_URI:
+        op.drop_column("feed", "email_notification")
 
 
 def downgrade():
-    op.add_column('feed', sa.Column('email_notification', sa.Boolean(),
-                  default=False))
+    op.add_column("feed", sa.Column("email_notification", sa.Boolean(), default=False))
diff --git a/migrations/versions/2472eddbf44b_update_of_the_user_model.py b/migrations/versions/2472eddbf44b_update_of_the_user_model.py
index a0194090..0a39c943 100644
--- a/migrations/versions/2472eddbf44b_update_of_the_user_model.py
+++ b/migrations/versions/2472eddbf44b_update_of_the_user_model.py
@@ -7,8 +7,8 @@ Create Date: 2016-03-01 22:35:03.659694
 """
 
 # revision identifiers, used by Alembic.
-revision = '2472eddbf44b'
-down_revision = 'ac35c979311a'
+revision = "2472eddbf44b"
+down_revision = "ac35c979311a"
 branch_labels = None
 depends_on = None
 
@@ -17,22 +17,23 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.drop_column('user', 'enabled')
-    op.add_column('user', sa.Column('is_active', sa.Boolean(), default=False))
-    op.add_column('user', sa.Column('is_admin', sa.Boolean(), default=False))
-    op.add_column('user', sa.Column('is_api', sa.Boolean(), default=False))
-    op.drop_table('role')
-
+    op.drop_column("user", "enabled")
+    op.add_column("user", sa.Column("is_active", sa.Boolean(), default=False))
+    op.add_column("user", sa.Column("is_admin", sa.Boolean(), default=False))
+    op.add_column("user", sa.Column("is_api", sa.Boolean(), default=False))
+    op.drop_table("role")
 
 
 def downgrade():
-    op.drop_column('user', 'is_active')
-    op.drop_column('user', 'is_admin')
-    op.drop_column('user', 'is_api')
-    op.create_table('role',
-            sa.Column('id', sa.INTEGER(), nullable=False),
-            sa.Column('name', sa.VARCHAR(), nullable=True),
-            sa.Column('user_id', sa.INTEGER(), nullable=True),
-            sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
-            sa.PrimaryKeyConstraint('id'),
-            sa.UniqueConstraint('name'))
+    op.drop_column("user", "is_active")
+    op.drop_column("user", "is_admin")
+    op.drop_column("user", "is_api")
+    op.create_table(
+        "role",
+        sa.Column("id", sa.INTEGER(), nullable=False),
+        sa.Column("name", sa.VARCHAR(), nullable=True),
+        sa.Column("user_id", sa.INTEGER(), nullable=True),
+        sa.ForeignKeyConstraint(["user_id"], ["user.id"],),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("name"),
+    )
diff --git a/migrations/versions/25ca960a207_mv_icons_from_feed_tbl_to_icon_tbl.py b/migrations/versions/25ca960a207_mv_icons_from_feed_tbl_to_icon_tbl.py
index 2c8eeda5..ef54259a 100644
--- a/migrations/versions/25ca960a207_mv_icons_from_feed_tbl_to_icon_tbl.py
+++ b/migrations/versions/25ca960a207_mv_icons_from_feed_tbl_to_icon_tbl.py
@@ -7,8 +7,8 @@ Create Date: 2015-08-03 14:36:21.626411
 """
 
 # revision identifiers, used by Alembic.
-revision = '25ca960a207'
-down_revision = '19bdaa6208e'
+revision = "25ca960a207"
+down_revision = "19bdaa6208e"
 
 from alembic import op
 import sqlalchemy as sa
@@ -17,20 +17,22 @@ import conf
 
 
 def upgrade():
-    op.create_table('icon',
-            sa.Column('url', sa.String(), nullable=False),
-            sa.Column('content', sa.String(), nullable=True),
-            sa.Column('mimetype', sa.String(), nullable=True),
-            sa.PrimaryKeyConstraint('url'))
-    op.add_column('feed', sa.Column('icon_url', sa.String(), nullable=True))
-    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
-        op.create_foreign_key(None, 'feed', 'icon', ['icon_url'], ['url'])
-        op.drop_column('feed', 'icon')
+    op.create_table(
+        "icon",
+        sa.Column("url", sa.String(), nullable=False),
+        sa.Column("content", sa.String(), nullable=True),
+        sa.Column("mimetype", sa.String(), nullable=True),
+        sa.PrimaryKeyConstraint("url"),
+    )
+    op.add_column("feed", sa.Column("icon_url", sa.String(), nullable=True))
+    if "sqlite" not in conf.SQLALCHEMY_DATABASE_URI:
+        op.create_foreign_key(None, "feed", "icon", ["icon_url"], ["url"])
+        op.drop_column("feed", "icon")
 
 
 def downgrade():
-    op.add_column('feed', sa.Column('icon', sa.VARCHAR(), nullable=True))
-    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
-        op.drop_constraint(None, 'feed', type_='foreignkey')
-        op.drop_column('feed', 'icon_url')
-    op.drop_table('icon')
+    op.add_column("feed", sa.Column("icon", sa.VARCHAR(), nullable=True))
+    if "sqlite" not in conf.SQLALCHEMY_DATABASE_URI:
+        op.drop_constraint(None, "feed", type_="foreignkey")
+        op.drop_column("feed", "icon_url")
+    op.drop_table("icon")
diff --git a/migrations/versions/2c5cc05216fa_adding_tag_handling_capacities.py b/migrations/versions/2c5cc05216fa_adding_tag_handling_capacities.py
index f9559fe3..299cca08 100644
--- a/migrations/versions/2c5cc05216fa_adding_tag_handling_capacities.py
+++ b/migrations/versions/2c5cc05216fa_adding_tag_handling_capacities.py
@@ -7,8 +7,8 @@ Create Date: 2016-11-08 07:41:13.923531
 """
 
 # revision identifiers, used by Alembic.
-revision = '2c5cc05216fa'
-down_revision = 'be2b8b6f33dd'
+revision = "2c5cc05216fa"
+down_revision = "be2b8b6f33dd"
 branch_labels = None
 depends_on = None
 
@@ -17,14 +17,14 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.create_table('tag',
-            sa.Column('text', sa.String(), nullable=False),
-            sa.Column('article_id', sa.Integer(), nullable=False),
-            sa.ForeignKeyConstraint(['article_id'], ['article.id'],
-                                    ondelete='CASCADE'),
-            sa.PrimaryKeyConstraint('text', 'article_id')
+    op.create_table(
+        "tag",
+        sa.Column("text", sa.String(), nullable=False),
+        sa.Column("article_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(["article_id"], ["article.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("text", "article_id"),
     )
 
 
 def downgrade():
-    op.drop_table('tag')
+    op.drop_table("tag")
diff --git a/migrations/versions/3f83bfe93fc_add_updated_date_column_to_article_table.py b/migrations/versions/3f83bfe93fc_add_updated_date_column_to_article_table.py
index 2c67450c..1be2abed 100644
--- a/migrations/versions/3f83bfe93fc_add_updated_date_column_to_article_table.py
+++ b/migrations/versions/3f83bfe93fc_add_updated_date_column_to_article_table.py
@@ -7,16 +7,16 @@ Create Date: 2016-02-12 21:51:40.868539
 """
 
 # revision identifiers, used by Alembic.
-revision = '3f83bfe93fc'
-down_revision = '25ca960a207'
+revision = "3f83bfe93fc"
+down_revision = "25ca960a207"
 
 from alembic import op
 import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('article', sa.Column('updated_date', sa.DateTime(), nullable=True))
+    op.add_column("article", sa.Column("updated_date", sa.DateTime(), nullable=True))
 
 
 def downgrade():
-    op.drop_column('article', 'updated_date')
+    op.drop_column("article", "updated_date")
diff --git a/migrations/versions/422da2d0234_adding_filters_field.py b/migrations/versions/422da2d0234_adding_filters_field.py
index bcbdf042..e7a35118 100644
--- a/migrations/versions/422da2d0234_adding_filters_field.py
+++ b/migrations/versions/422da2d0234_adding_filters_field.py
@@ -7,16 +7,16 @@ Create Date: 2015-05-18 23:03:15.809549
 """
 
 # revision identifiers, used by Alembic.
-revision = '422da2d0234'
-down_revision = '17dcb75f3fe'
+revision = "422da2d0234"
+down_revision = "17dcb75f3fe"
 
 from alembic import op
 import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('feed', sa.Column('filters', sa.PickleType(), nullable=True))
+    op.add_column("feed", sa.Column("filters", sa.PickleType(), nullable=True))
 
 
 def downgrade():
-    op.drop_column('feed', 'filters')
+    op.drop_column("feed", "filters")
diff --git a/migrations/versions/48f561c0ce6_add_column_entry_id.py b/migrations/versions/48f561c0ce6_add_column_entry_id.py
index f464849a..11148e8d 100644
--- a/migrations/versions/48f561c0ce6_add_column_entry_id.py
+++ b/migrations/versions/48f561c0ce6_add_column_entry_id.py
@@ -7,7 +7,7 @@ Create Date: 2015-02-18 21:17:19.346998
 """
 
 # revision identifiers, used by Alembic.
-revision = '48f561c0ce6'
+revision = "48f561c0ce6"
 down_revision = None
 branch_labels = None
 depends_on = None
@@ -18,9 +18,9 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('article', sa.Column('entry_id', sa.String(), nullable=True))
+    op.add_column("article", sa.Column("entry_id", sa.String(), nullable=True))
 
 
 def downgrade():
-    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
-        op.drop_column('article', 'entry_id')
+    if "sqlite" not in conf.SQLALCHEMY_DATABASE_URI:
+        op.drop_column("article", "entry_id")
diff --git a/migrations/versions/5553a6c05fa7_add_column_twitter_in_the_user_table.py b/migrations/versions/5553a6c05fa7_add_column_twitter_in_the_user_table.py
index 7c7132a8..e7ef9b38 100644
--- a/migrations/versions/5553a6c05fa7_add_column_twitter_in_the_user_table.py
+++ b/migrations/versions/5553a6c05fa7_add_column_twitter_in_the_user_table.py
@@ -7,8 +7,8 @@ Create Date: 2016-10-06 11:02:41.356322
 """
 
 # revision identifiers, used by Alembic.
-revision = '5553a6c05fa7'
-down_revision = 'f700c4237e9d'
+revision = "5553a6c05fa7"
+down_revision = "f700c4237e9d"
 branch_labels = None
 depends_on = None
 
@@ -17,9 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('user', sa.Column('twitter',
-                                        sa.String(), default=""))
+    op.add_column("user", sa.Column("twitter", sa.String(), default=""))
 
 
 def downgrade():
-    op.drop_column('user', 'twitter')
+    op.drop_column("user", "twitter")
diff --git a/migrations/versions/661199d8768a_problem_with_the_last_upgrade.py b/migrations/versions/661199d8768a_problem_with_the_last_upgrade.py
index 1470dd04..0989a892 100644
--- a/migrations/versions/661199d8768a_problem_with_the_last_upgrade.py
+++ b/migrations/versions/661199d8768a_problem_with_the_last_upgrade.py
@@ -7,8 +7,8 @@ Create Date: 2016-02-13 11:33:14.183576
 """
 
 # revision identifiers, used by Alembic.
-revision = '661199d8768a'
-down_revision = '3f83bfe93fc'
+revision = "661199d8768a"
+down_revision = "3f83bfe93fc"
 branch_labels = None
 depends_on = None
 
@@ -17,8 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('article', sa.Column('updated_date', sa.DateTime(), nullable=True))
+    op.add_column("article", sa.Column("updated_date", sa.DateTime(), nullable=True))
 
 
 def downgrade():
-    op.drop_column('article', 'updated_date')
+    op.drop_column("article", "updated_date")
diff --git a/migrations/versions/8bf5694c0b9e_add_column_automatic_crawling_to_the_.py b/migrations/versions/8bf5694c0b9e_add_column_automatic_crawling_to_the_.py
index 5728449a..477e1376 100644
--- a/migrations/versions/8bf5694c0b9e_add_column_automatic_crawling_to_the_.py
+++ b/migrations/versions/8bf5694c0b9e_add_column_automatic_crawling_to_the_.py
@@ -7,8 +7,8 @@ Create Date: 2016-10-06 13:47:32.784711
 """
 
 # revision identifiers, used by Alembic.
-revision = '8bf5694c0b9e'
-down_revision = '5553a6c05fa7'
+revision = "8bf5694c0b9e"
+down_revision = "5553a6c05fa7"
 branch_labels = None
 depends_on = None
 
@@ -17,9 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('user', sa.Column('automatic_crawling',
-                                        sa.Boolean(), default=True))
+    op.add_column("user", sa.Column("automatic_crawling", sa.Boolean(), default=True))
 
 
 def downgrade():
-    op.drop_column('user', 'automatic_crawling')
+    op.drop_column("user", "automatic_crawling")
diff --git a/migrations/versions/957d4c5b8ac9_add_column_is_public_profile_to_the_.py b/migrations/versions/957d4c5b8ac9_add_column_is_public_profile_to_the_.py
index 4e967121..d5c03c8a 100644
--- a/migrations/versions/957d4c5b8ac9_add_column_is_public_profile_to_the_.py
+++ b/migrations/versions/957d4c5b8ac9_add_column_is_public_profile_to_the_.py
@@ -7,8 +7,8 @@ Create Date: 2016-09-20 14:35:31.302555
 """
 
 # revision identifiers, used by Alembic.
-revision = '957d4c5b8ac9'
-down_revision = '2472eddbf44b'
+revision = "957d4c5b8ac9"
+down_revision = "2472eddbf44b"
 branch_labels = None
 depends_on = None
 
@@ -17,9 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('user', sa.Column('is_public_profile',
-                                        sa.Boolean(), default=False))
+    op.add_column("user", sa.Column("is_public_profile", sa.Boolean(), default=False))
 
 
 def downgrade():
-    op.drop_column('user', 'is_public_profile')
+    op.drop_column("user", "is_public_profile")
diff --git a/migrations/versions/ac35c979311a_removed_activation_key_from_the_user_.py b/migrations/versions/ac35c979311a_removed_activation_key_from_the_user_.py
index 446f9d2f..644720b2 100644
--- a/migrations/versions/ac35c979311a_removed_activation_key_from_the_user_.py
+++ b/migrations/versions/ac35c979311a_removed_activation_key_from_the_user_.py
@@ -7,8 +7,8 @@ Create Date: 2016-02-18 08:54:43.786641
 """
 
 # revision identifiers, used by Alembic.
-revision = 'ac35c979311a'
-down_revision = '661199d8768a'
+revision = "ac35c979311a"
+down_revision = "661199d8768a"
 branch_labels = None
 depends_on = None
 
@@ -17,11 +17,12 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.drop_column('user', 'activation_key')
-    op.add_column('user', sa.Column('enabled', sa.Boolean(), default=False))
+    op.drop_column("user", "activation_key")
+    op.add_column("user", sa.Column("enabled", sa.Boolean(), default=False))
 
 
 def downgrade():
-    op.drop_column('user', 'enabled')
-    op.add_column('user', sa.Column('activation_key', sa.String(),
-                                        nullable=False, default=''))
+    op.drop_column("user", "enabled")
+    op.add_column(
+        "user", sa.Column("activation_key", sa.String(), nullable=False, default="")
+    )
diff --git a/migrations/versions/b329a1a7366f_add_new_tables_for_the_bookmarks_and_.py b/migrations/versions/b329a1a7366f_add_new_tables_for_the_bookmarks_and_.py
index 8f2b015c..20c760e9 100644
--- a/migrations/versions/b329a1a7366f_add_new_tables_for_the_bookmarks_and_.py
+++ b/migrations/versions/b329a1a7366f_add_new_tables_for_the_bookmarks_and_.py
@@ -7,8 +7,8 @@ Create Date: 2017-05-23 21:42:37.636307
 """
 
 # revision identifiers, used by Alembic.
-revision = 'b329a1a7366f'
-down_revision = '2c5cc05216fa'
+revision = "b329a1a7366f"
+down_revision = "2c5cc05216fa"
 branch_labels = None
 depends_on = None
 
@@ -18,48 +18,47 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.drop_table('tag')
-    op.create_table('article_tag',
-            sa.Column('text', sa.String(), nullable=False),
-            sa.Column('article_id', sa.Integer(), nullable=False),
-            sa.ForeignKeyConstraint(['article_id'], ['article.id'],
-                                    ondelete='CASCADE'),
-            sa.PrimaryKeyConstraint('text', 'article_id')
+    op.drop_table("tag")
+    op.create_table(
+        "article_tag",
+        sa.Column("text", sa.String(), nullable=False),
+        sa.Column("article_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(["article_id"], ["article.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("text", "article_id"),
     )
-    op.create_table('bookmark',
-            sa.Column('id', sa.Integer(), nullable=False),
-            sa.Column('href', sa.String(), default=""),
-            sa.Column('title', sa.String(), default=""),
-            sa.Column('description', sa.String(), default=""),
-            sa.Column('shared', sa.Boolean(), default=False),
-            sa.Column('to_read', sa.Boolean(), default=False),
-            sa.Column('time', sa.DateTime(), default=datetime.utcnow),
-            sa.Column('user_id', sa.Integer(), nullable=False),
-            sa.ForeignKeyConstraint(['user_id'], ['user.id'],
-                                    ondelete='CASCADE'),
-            sa.PrimaryKeyConstraint('id')
+    op.create_table(
+        "bookmark",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("href", sa.String(), default=""),
+        sa.Column("title", sa.String(), default=""),
+        sa.Column("description", sa.String(), default=""),
+        sa.Column("shared", sa.Boolean(), default=False),
+        sa.Column("to_read", sa.Boolean(), default=False),
+        sa.Column("time", sa.DateTime(), default=datetime.utcnow),
+        sa.Column("user_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(["user_id"], ["user.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id"),
     )
-    op.create_table('bookmark_tag',
-            sa.Column('id', sa.Integer(), nullable=False),
-            sa.Column('text', sa.String(), nullable=False),
-            sa.Column('user_id', sa.Integer(), nullable=False),
-            sa.Column('bookmark_id', sa.Integer(), nullable=False),
-            sa.ForeignKeyConstraint(['bookmark_id'], ['bookmark.id'],
-                                    ondelete='CASCADE'),
-            sa.ForeignKeyConstraint(['user_id'], ['user.id'],
-                                    ondelete='CASCADE'),
-            sa.PrimaryKeyConstraint('id')
+    op.create_table(
+        "bookmark_tag",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("text", sa.String(), nullable=False),
+        sa.Column("user_id", sa.Integer(), nullable=False),
+        sa.Column("bookmark_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(["bookmark_id"], ["bookmark.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["user_id"], ["user.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id"),
     )
 
 
 def downgrade():
-    op.drop_table('article_tag')
-    op.drop_table('bookmark_tag')
-    op.drop_table('bookmark')
-    op.create_table('tag',
-            sa.Column('text', sa.String(), nullable=False),
-            sa.Column('article_id', sa.Integer(), nullable=False),
-            sa.ForeignKeyConstraint(['article_id'], ['article.id'],
-                                    ondelete='CASCADE'),
-            sa.PrimaryKeyConstraint('text', 'article_id')
+    op.drop_table("article_tag")
+    op.drop_table("bookmark_tag")
+    op.drop_table("bookmark")
+    op.create_table(
+        "tag",
+        sa.Column("text", sa.String(), nullable=False),
+        sa.Column("article_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(["article_id"], ["article.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("text", "article_id"),
     )
diff --git a/migrations/versions/bdd38bd755cb_remove_email_attribute_from_users_.py b/migrations/versions/bdd38bd755cb_remove_email_attribute_from_users_.py
index a4d24ff5..47ffb371 100644
--- a/migrations/versions/bdd38bd755cb_remove_email_attribute_from_users_.py
+++ b/migrations/versions/bdd38bd755cb_remove_email_attribute_from_users_.py
@@ -7,8 +7,8 @@ Create Date: 2018-04-04 23:26:52.517804
 """
 
 # revision identifiers, used by Alembic.
-revision = 'bdd38bd755cb'
-down_revision = 'b329a1a7366f'
+revision = "bdd38bd755cb"
+down_revision = "b329a1a7366f"
 branch_labels = None
 depends_on = None
 
@@ -17,9 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.drop_column('user', 'email')
+    op.drop_column("user", "email")
 
 
 def downgrade():
-    op.add_column('user', sa.Column('email', sa.String(254), unique=True,
-                                    index=True))
+    op.add_column("user", sa.Column("email", sa.String(254), unique=True, index=True))
diff --git a/migrations/versions/be2b8b6f33dd_add_column_private_to_the_feeds_table.py b/migrations/versions/be2b8b6f33dd_add_column_private_to_the_feeds_table.py
index c41aa12a..15244b09 100644
--- a/migrations/versions/be2b8b6f33dd_add_column_private_to_the_feeds_table.py
+++ b/migrations/versions/be2b8b6f33dd_add_column_private_to_the_feeds_table.py
@@ -7,8 +7,8 @@ Create Date: 2016-10-24 13:28:55.964803
 """
 
 # revision identifiers, used by Alembic.
-revision = 'be2b8b6f33dd'
-down_revision = 'fa10b0bdd045'
+revision = "be2b8b6f33dd"
+down_revision = "fa10b0bdd045"
 branch_labels = None
 depends_on = None
 
@@ -17,9 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('feed', sa.Column('private',
-                                        sa.Boolean(), default=False))
+    op.add_column("feed", sa.Column("private", sa.Boolean(), default=False))
 
 
 def downgrade():
-    op.drop_column('feed', 'private')
+    op.drop_column("feed", "private")
diff --git a/migrations/versions/cde34831ea_adding_feed_and_user_attributes_for_.py b/migrations/versions/cde34831ea_adding_feed_and_user_attributes_for_.py
index 639e3988..08969d98 100644
--- a/migrations/versions/cde34831ea_adding_feed_and_user_attributes_for_.py
+++ b/migrations/versions/cde34831ea_adding_feed_and_user_attributes_for_.py
@@ -7,8 +7,8 @@ Create Date: 2015-03-04 22:59:44.665979
 """
 
 # revision identifiers, used by Alembic.
-revision = 'cde34831ea'
-down_revision = '1b750a389c22'
+revision = "cde34831ea"
+down_revision = "1b750a389c22"
 import conf
 from datetime import datetime
 
@@ -19,26 +19,47 @@ import sqlalchemy as sa
 def upgrade():
     unix_start = datetime(1970, 1, 1)
     # commands auto generated by Alembic - please adjust! ###
-    op.add_column('feed', sa.Column('error_count', sa.Integer(), nullable=True,
-            default=0, server_default="0"))
-    op.add_column('feed', sa.Column('last_error', sa.String(), nullable=True))
-    op.add_column('feed', sa.Column('last_modified', sa.DateTime(),
-            nullable=True, default=unix_start, server_default=str(unix_start)))
-    op.add_column('feed', sa.Column('last_retrieved', sa.DateTime(),
-            nullable=True, default=unix_start, server_default=str(unix_start)))
-    op.add_column('feed', sa.Column('etag', sa.String(), nullable=True))
-    op.add_column('user', sa.Column('refresh_rate', sa.Integer(),
-            nullable=True, default=60))
+    op.add_column(
+        "feed",
+        sa.Column(
+            "error_count", sa.Integer(), nullable=True, default=0, server_default="0"
+        ),
+    )
+    op.add_column("feed", sa.Column("last_error", sa.String(), nullable=True))
+    op.add_column(
+        "feed",
+        sa.Column(
+            "last_modified",
+            sa.DateTime(),
+            nullable=True,
+            default=unix_start,
+            server_default=str(unix_start),
+        ),
+    )
+    op.add_column(
+        "feed",
+        sa.Column(
+            "last_retrieved",
+            sa.DateTime(),
+            nullable=True,
+            default=unix_start,
+            server_default=str(unix_start),
+        ),
+    )
+    op.add_column("feed", sa.Column("etag", sa.String(), nullable=True))
+    op.add_column(
+        "user", sa.Column("refresh_rate", sa.Integer(), nullable=True, default=60)
+    )
     # end Alembic commands ###
 
 
 def downgrade():
     # commands auto generated by Alembic - please adjust! ###
-    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
-        op.drop_column('user', 'refresh_rate')
-        op.drop_column('feed', 'last_modified')
-        op.drop_column('feed', 'last_error')
-        op.drop_column('feed', 'error_count')
-        op.drop_column('feed', 'last_retrieved')
-        op.drop_column('feed', 'etag')
+    if "sqlite" not in conf.SQLALCHEMY_DATABASE_URI:
+        op.drop_column("user", "refresh_rate")
+        op.drop_column("feed", "last_modified")
+        op.drop_column("feed", "last_error")
+        op.drop_column("feed", "error_count")
+        op.drop_column("feed", "last_retrieved")
+        op.drop_column("feed", "etag")
     # end Alembic commands ###
diff --git a/migrations/versions/f700c4237e9d_remove_refresh_rate_column_from_the_.py b/migrations/versions/f700c4237e9d_remove_refresh_rate_column_from_the_.py
index aca0d1ba..c69e5fe8 100644
--- a/migrations/versions/f700c4237e9d_remove_refresh_rate_column_from_the_.py
+++ b/migrations/versions/f700c4237e9d_remove_refresh_rate_column_from_the_.py
@@ -7,8 +7,8 @@ Create Date: 2016-10-05 08:47:51.384069
 """
 
 # revision identifiers, used by Alembic.
-revision = 'f700c4237e9d'
-down_revision = '16f8fc3cf0cc'
+revision = "f700c4237e9d"
+down_revision = "16f8fc3cf0cc"
 branch_labels = None
 depends_on = None
 
@@ -17,9 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.drop_column('user', 'refresh_rate')
+    op.drop_column("user", "refresh_rate")
 
 
 def downgrade():
-    op.add_column('user', sa.Column('refresh_rate', sa.Integer(),
-                  default=60))
+    op.add_column("user", sa.Column("refresh_rate", sa.Integer(), default=60))
diff --git a/migrations/versions/fa10b0bdd045_add_bio_column_to_user_table.py b/migrations/versions/fa10b0bdd045_add_bio_column_to_user_table.py
index 2d839626..80ee71fc 100644
--- a/migrations/versions/fa10b0bdd045_add_bio_column_to_user_table.py
+++ b/migrations/versions/fa10b0bdd045_add_bio_column_to_user_table.py
@@ -7,8 +7,8 @@ Create Date: 2016-10-07 10:43:04.428178
 """
 
 # revision identifiers, used by Alembic.
-revision = 'fa10b0bdd045'
-down_revision = '8bf5694c0b9e'
+revision = "fa10b0bdd045"
+down_revision = "8bf5694c0b9e"
 branch_labels = None
 depends_on = None
 
@@ -17,9 +17,8 @@ import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column('user', sa.Column('bio',
-                                        sa.String(5000), default=""))
+    op.add_column("user", sa.Column("bio", sa.String(5000), default=""))
 
 
 def downgrade():
-    op.drop_column('user', 'bio')
+    op.drop_column("user", "bio")