alembic_is_current.py

from alembic.script import ScriptDirectory
from alembic.config import Config
from alembic.migration import MigrationContext
from sqlalchemy import create_engine

# current head
config = Config()
config.set_main_option("script_location", "myapp:migrations")
script = ScriptDirectory.from_config(config)
head_revision = script.get_current_head()

# version in database
engine = create_engine("postgresql://mydatabase")
conn = engine.connect()
context = MigrationContext.configure(conn)
current_rev = context.get_current_revision()

is_current = current_rev == head_revision