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No module named schema for sqlalchemy #374

glenwinters opened this Issue Dec 12, 2014 · 2 comments


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glenwinters commented Dec 12, 2014

I'm trying to get my script to work for the first time, and I'm getting this error:

Traceback (most recent call last):
  File "", line 3, in <module>
    import flask.ext.restless
  File "/usr/lib/python2.7/dist-packages/flask/", line 81, in load_module
    reraise(exc_type, exc_value, tb.tb_next)
  File "/usr/local/lib/python2.7/dist-packages/flask_restless/", line 22, in <module>
    from .manager import APIManager
  File "/usr/local/lib/python2.7/dist-packages/flask_restless/", line 18, in <module>
    from .views import API
  File "/usr/local/lib/python2.7/dist-packages/flask_restless/", line 44, in <module>
    from sqlalchemy.sql.schema import Column
ImportError: No module named schema

I poked around and found that Column exists in sqlalchemy.schema. I checked that the versions of my libraries are the correct version.


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oko commented Jan 2, 2015

sqlalchemy.sql.schema doesn't exist in SQLAlchemy v0.8, only in v0.9. However, requirements.txt still specifies sqlalchemy>=0.8 so anyone with v0.8 already installed won't be upgraded and things will break.

oko added a commit to oko/flask-restless that referenced this issue Jan 2, 2015

Fix jfinkels#374
SQLAlchemy v0.9 required to use `sqlalchemy.sql.schema`

@oko oko referenced this issue Jan 2, 2015


Fix #374 #377


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jfinkels commented Jan 2, 2015

This will be fixed when pull request #377 gets merged. For now, try simply modifying the line from sqlalchemy.sql.schema import Column to from sqlalchemy import Column.

@jfinkels jfinkels closed this in #377 Jan 2, 2015

jfinkels added a commit that referenced this issue Jan 2, 2015

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