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python - SQLAlchemy query where a column contains a substring

I'm constructing a query using SQLAlchemy and SQLite3 in which I'd like to select rows in which a String column contains a particular substring. What is the best way to accomplish this?

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You can filter using contains operator:

Model.query.filter(Model.columnName.contains('sub_string'))

To negate in, use not_ operator with it:

Model.query.filter(not_(Model.columnName.contains('sub_string')))

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