AttributeError: module 'sqlalchemy.dialects.postgresql' has no attribute 'MONEY' with python3.7.3 and marshmallow-sqlalchemy==0.23.1

sqlalchemy==1.3.19 marshmallow-sqlalchemy==0.23.1 ➜ ~ python3 --version Python 3.7.3 mac os

➜ ~ sudo  pip3 install marshmallow-sqlalchemy==0.23.1
WARNING: The directory '/Users/jax/Library/Caches/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting marshmallow-sqlalchemy==0.23.1
  Downloading marshmallow_sqlalchemy-0.23.1-py2.py3-none-any.whl (18 kB)
Requirement already satisfied: marshmallow>=2.15.2 in /Library/Python/3.7/site-packages (from marshmallow-sqlalchemy==0.23.1) (2.21.0)
Requirement already satisfied: SQLAlchemy>=1.2.0 in /Library/Python/3.7/site-packages (from marshmallow-sqlalchemy==0.23.1) (1.3.19)
Installing collected packages: marshmallow-sqlalchemy
  Attempting uninstall: marshmallow-sqlalchemy
    Found existing installation: marshmallow-sqlalchemy 0.23.0
    Uninstalling marshmallow-sqlalchemy-0.23.0:
      Successfully uninstalled marshmallow-sqlalchemy-0.23.0
Successfully installed marshmallow-sqlalchemy-0.23.1
➜ ~ python3 --version
Python 3.7.3
➜ ~ sudo  pip3 install sqlalchemy
Password:
WARNING: The directory '/Users/jax/Library/Caches/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Requirement already satisfied: sqlalchemy in /Library/Python/3.7/site-packages (1.3.19)
➜ ~

/usr/local/bin/python3.7 /Users/jax/xx/github/airflow/airflow/__main__.py db init
DB: postgresql://postgres:***@******/airflow_mac
[2020-08-22 19:50:09,673] {db.py:619} INFO - Creating tables
INFO  [alembic.runtime.migration] Context impl PostgresqlImpl.
INFO  [alembic.runtime.migration] Will assume transactional DDL.
Traceback (most recent call last):
  File "/Users/jax/xx/github/airflow/airflow/__main__.py", line 44, in <module>
    main()
  File "/Users/jax/xx/github/airflow/airflow/__main__.py", line 40, in main
    args.func(args)
  File "/Users/jax/xx/github/airflow/airflow/cli/cli_parser.py", line 53, in command
    return func(*args, **kwargs)
  File "/Users/jax/xx/github/airflow/airflow/cli/commands/db_command.py", line 31, in initdb
    db.initdb()
  File "/Users/jax/xx/github/airflow/airflow/utils/db.py", line 569, in initdb
    from flask_appbuilder.models.sqla import Base
  File "/usr/local/lib/python3.7/site-packages/Flask_AppBuilder-3.0.1-py3.7.egg/flask_appbuilder/__init__.py", line 5, in <module>
    from .api import ModelRestApi  # noqa: F401
  File "/usr/local/lib/python3.7/site-packages/Flask_AppBuilder-3.0.1-py3.7.egg/flask_appbuilder/api/__init__.py", line 15, in <module>
    from marshmallow_sqlalchemy.fields import Related, RelatedList
  File "/Library/Python/3.7/site-packages/marshmallow_sqlalchemy/__init__.py", line 1, in <module>
    from .schema import (
  File "/Library/Python/3.7/site-packages/marshmallow_sqlalchemy/schema/__init__.py", line 1, in <module>
    from .model_schema import ModelSchema, ModelSchemaOpts, ModelSchemaMeta
  File "/Library/Python/3.7/site-packages/marshmallow_sqlalchemy/schema/model_schema.py", line 5, in <module>
    from ..convert import ModelConverter
  File "/Library/Python/3.7/site-packages/marshmallow_sqlalchemy/convert.py", line 38, in <module>
    class ModelConverter:
  File "/Library/Python/3.7/site-packages/marshmallow_sqlalchemy/convert.py", line 56, in ModelConverter
    postgresql.MONEY: fields.Decimal,
AttributeError: module 'sqlalchemy.dialects.postgresql' has no attribute 'MONEY'

Process finished with exit code 1

[xu-xiang]

I have try recreated virtualenv and run this code . I’m also unable to reproduce this. It seems to be working - -

[sloria]

I’m still unable to reproduce this. It doesn’t appear to be an issue with marshmallow-sqlalchemy. More likely it is in issue with the virtualenv on your mac. Maybe try recreating it?