ImportError: cannot import name ‘_ColumnEntity’ from ‘sqlalchemy.orm.query’

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The core reason for this is that sqlalchemy 1.4 shipped, so it is now the default that pip installs. There were many interface changes and a new query interface added.

So upgrading to 1.4 breaks stuff that depends on the sqlalchemy 1.3 API internals. In your requirements.txt file– pin the project version to the 1.3.x series until the rest of your stuff catches up. For example, as of this date sqlalchemy-utils is still dependent on sqlalchemy 1.3x.

requirements.txt:

sqlalchemy < 1.4.0

Then use:

pip -r requirements.txt

to “downgrade” to the pinned version.

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