Strange SQLAlchemy error message: TypeError: 'dict' object does not support indexing

Question

I am using hand crafted SQL to fetch data from a PG database, using SqlAlchemy. I am trying a query which contains the SQL like operator \'%\' and that seems to throw SqlAlc

Answer 1

I found one more case when this error shows up:

c.execute("SELECT * FROM t WHERE a = %s")

In other words, if you provide parameter (%s) in query, but you forget to add query params. In this case error message is very misleading.