Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python SQLAlchemy Basics Introduction to SQLAlchemy Querying the Movie Database

Alex Zhou
Alex Zhou
11,943 Points
Posted by Alex Zhou
Alex Zhou
11,943 Points

The movie theater has added all of their current offerings to the database you created, but they need some help finding

I don't know what's wrong with my code, been stuck on this for a while now.

models.py 
from sqlalchemy import create_engine, Column, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker


engine = create_engine(‘sqlite:///movies.db’, echo=False)
Session = sessionmaker(bind=engine)
session = Session()
Base = declarative_base()


class Movie(Base):
    __tablename__ = ‘movies’

    id = Column(Integer, primary_key=True)
    movie_title = Column(String)
    genre = Column(String)
# Write your code below
romance_movies = session.query(Movie).filter_by(genre = 'Romance')
Cherie Kabba
Cherie Kabba
4,033 Points

This should help.

2 Answers

Mel Rumsey
.a{fill-rule:evenodd;}techdegree seal-36
Mel Rumsey
Treehouse Moderator

Hey Alex Zhou looks like you are on the first part of the challenge.

You are super close, the error with this challenge is from a pep8 issue. There shouldn't be any spaces around the = when entering an argument for the filter_by() method.

Your code would run, but we are also trying to teach you common pep8 practices to keep your code tidy.

Hang in there!

Cherie Kabba
Cherie Kabba
4,033 Points
Cherie Kabba
Cherie Kabba
4,033 Points

from sqlalchemy import create_engine, Column, Integer, String from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import sessionmaker

engine = create_engine(‘sqlite:///movies.db’, echo=False) Session = sessionmaker(bind=engine) session = Session() Base = declarative_base()

class Movie(Base): tablename = ‘movies’

id = Column(Integer, primary_key=True)
movie_title = Column(String)
genre = Column(String)

Write your code below

romance_movies = session.query(Movie).filter_by(genre='Romance')