Alembic: alembic revision says Import Error

Question

I am trying to integrate my Flask project with Alembic
My application structure looks like

project/        configuration/                     __init__.py                     dev.py                     test.py        core/            # all source code        db/          migrations/                     __init__.py                     alembic.ini                     env.py                     versions/ 

When I try to run the following from my db directory, I see

 File "migration/env.py", line 55, in run_migrations_online     from configuration import app, db ImportError: No module named configuration 

I tried the solution mentioned in Request a simple alembic working example for Auto Generating Migrations, but it does not work for me

My method in env.py run_migrations_online() with change is

def run_migrations_online():     """Run migrations in 'online' mode.      In this scenario we need to create an Engine     and associate a connection with the context.      """     import os     import sys      sys.path.append(os.getcwd())     from configuration import app, db      alembic_config = config.get_section(config.config_ini_section)     alembic_config['sqlalchemy.url'] = app.config['SQLALCHEMY_DATABASE_URI']     target_metadata = db.metadata      engine = engine_from_config(         alembic_config,         prefix='sqlalchemy.',         poolclass=pool.NullPool)      connection = engine.connect()     context.configure(         connection=connection,         target_metadata=target_metadata     )      try:         with context.begin_transaction():             context.run_migrations()     finally:         connection.close()   if context.is_offline_mode():     run_migrations_offline() else:     run_migrations_online() 

How can I fix this?

Answer 1

I did export PYTHONPATH=<path_to_project> and ran the command again and it ran successfully