SQLalchemy AttributeError: 'str' object has no attribute '_sa_instance_state'

Question

I\'m trying to add an item to my database with SQLAlchemy + Python, but keep getting an error.

My database_setup.py:

class company(Base):
    __table         


        

Answer 1

I think the problem is in how you are defining the related company schema:

JawboneUP3 = item(itemID = "1", name = "Jawbone UP3", description = "The latest UP!", 
                  category = "tracker", price = "$174.99", company = "Jawbone")
                                                           # HERE^

The item constructor expects a company instance but you are passing a string value. Fix it:

JawboneUP3 = item(itemID="1", 
                  name="Jawbone UP3", 
                  description="The latest UP!", 
                  category="tracker", 
                  price="$174.99", 
                  company=company(name="Jawbone"))