Hello!
below is my script
class User(Base):
__table_args__ = {"schema":"shm"}
__tablename__ = "users"
__table_args__ = (
PrimaryKeyConstraint('date', 'country', 'product', 'info'),
{"schema":"royalty_input"}
)
date = Column('date', Date)
pipeline_versions = Column('pipeline_versions', ARRAY(TEXT))
country = Column('country', String(2))
product = Column('product', TEXT)
info = Column('info', JSONB, nullable=False)
with open("config.json", 'r') as infile:
config = json.load(infile)
print config['database']
db = create_engine(config['database'], echo=True)
Session = sessionmaker(bind=db)
session = Session()
#users = db.execute('SELECT * FROM royalty_input.registered_users limit
1');#session.query(User).first()
data =
session.query(User).filter(User.reporting_country=="DE").filter(User.date>='2018-09-01',User.date<='2018-09-30').all()
Its giving below Error:
raceback (most recent call last):
File "app.py", line 39, in <module>
data =
session.query(User).filter(User.reporting_country=="DE").filter(User.date>='2018-09-01',User.date<='2018-09-30').all()
File
"/Users/vipinm/python_script/venv/lib/python2.7/site-packages/sqlalchemy/orm/query.py",
line 2843, in all
return list(self)
File
"/Users/vipinm/python_script/venv/lib/python2.7/site-packages/sqlalchemy/orm/loading.py",
line 98, in instances
util.raise_from_cause(err)
File
"/Users/vipinm/python_script/venv/lib/python2.7/site-packages/sqlalchemy/util/compat.py",
line 265, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File
"/Users/vipinm/python_script/venv/lib/python2.7/site-packages/sqlalchemy/orm/loading.py",
line 79, in instances
rows = [proc(row) for row in fetch]
File
"/Users/vipinm/python_script/venv/lib/python2.7/site-packages/sqlalchemy/orm/loading.py",
line 458, in _instance
instance = session_identity_map.get(identitykey)
File
"/Users/vipinm/python_script/venv/lib/python2.7/site-packages/sqlalchemy/orm/identity.py",
line 162, in get
if key not in self._dict:
TypeError: unhashable type: 'dict'
It works if I remove 'info' from the primary key list
Any help appreciated!
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http://www.sqlalchemy.org/
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