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Python

Posted by augustine makachemu
augustine makachemu
2,058 Points

I have errors from my completed social media app in python with flask

These are the errors I'm getting with my code.

If you need me to attach my code just tell me which files I need to attach. Thanks

Traceback (most recent call last):
File "app.py", line 7, in <module>
import forms
File "/home/treehouse/workspace/forms.py", line 6, in <module>
from models import User
File "/home/treehouse/workspace/models.py", line 86
def initialize():
^
SyntaxError: invalid syntax

James J. McCombie
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
James J. McCombie
Python Web Development Techdegree Graduate 21,199 Points
James J. McCombie
.a{fill-rule:evenodd;}techdegree seal-36
James J. McCombie
Python Web Development Techdegree Graduate 21,199 Points

hello, going to need to see the models.py code to help more but...

check your indentation in and around the def initialize function, and look carefully at the code block above it, are you missing a closing parentheses for example? or is there a block that expects a statement?

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

Protip: when the syntax error points to a seemingly correct line, the error is usually cause by the previous statement likely a missing closing paren or missing closing quote.

augustine makachemu
augustine makachemu
2,058 Points

Here's my models.py

import datetime

from flask.ext.bcrypt import generate_password_hash
from flask.ext.login import UserMixin
from peewee import *

DATABASE = SqliteDatabase('social.db')

class User(UserMixin, Model):
    username = CharField(unique=True)
    email = CharField(unique=True)
    password = CharField(max_length=100)
    joined_at = DateTimeField(default=datetime.datetime.now)
    is_admin = BooleanField(default=False)

    class Meta:
        database = DATABASE
        order_by = ('-joined_at',)

    def get_posts(self):
        return Post.select().where(Post.user == self)

    def get_stream(self):
        return Post.select().where(
            (Post.user << self.following()) |
            (Post.user == self)
        )

    def following(self):
        """The users that we are following."""
        return (
            User.select().join(
                Relationship, on=Relationship.to_user
            ).where(
                Relationship.from_user == self
            )
        )

    def followers(self):
        """Get users following the current user"""
        return (
            User.select().join(
                Relationship, on=Relationship.from_user
            ).where(
                Relationship.to_user == self
            )
        )

    @classmethod
    def create_user(cls, username, email, password, admin=False):
        try:
            with DATABASE.transaction():
                cls.create(
                    username=username,
                    email=email,
                    password=generate_password_hash(password),
                    is_admin=admin)
        except IntegrityError:
            raise ValueError("User already exists")


class Post(Model):
    timestamp = DateTimeField(default=datetime.datetime.now)
    user = ForeignKeyField(
        rel_model=User,
        related_name='posts'
    )
    content = TextField()

    class Meta:
        database = DATABASE
        order_by = ('-timestamp',)


class Relationship(Model):
    from_user = ForeignKeyField(User, related_name='relationships')
    to_user = ForeignKeyField(User, related_name='related_to')

    class Meta:
        database = DATABASE
        indexes = (
            (('from_user', 'to_user'), True,
        )


def initialize():
    DATABASE.connect()
    DATABASE.create_tables([User, Post, Relationship], safe=True)
    DATABASE.close()

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

There is a closing paren missing:

    class Meta:
        database = DATABASE
        indexes = (
            (('from_user', 'to_user'), True,
        )