"""spy_playlist_user_null Revision ID: 3983c20529f2 Revises: 2f254779e793 Create Date: 2019-07-24 12:45:03.992813 """ # revision identifiers, used by Alembic. revision = '3983c20529f2' down_revision = '2f254779e793' branch_labels = None depends_on = None from alembic import op import sqlalchemy as sa from sqlalchemy.dialects import postgresql def upgrade(): ### commands auto generated by Alembic - please adjust! ### op.alter_column('spy_playlist', 'user', existing_type=sa.VARCHAR(), nullable=True) ### end Alembic commands ### def downgrade(): op.alter_column('spy_playlist', 'user', existing_type=sa.VARCHAR(), nullable=False)