ShakeM

def foreign_key(table):
    """class decorator, add a foreign key to a sqlalchemy model.
    parameter table is the destination table, in a one-to-many relationship, table is the "one" side.
    """

    def ref_table(cls):
        setattr(cls, '{0}_id'.format(table), db.Column(db.String(50), db.ForeignKey('{0}.id'.format(table))))
        setattr(cls, table,
                db.relationship(table.capitalize(), backref=db.backref(cls.__name__.lower() + 's', lazy='dynamic')))
        return cls

ShakeM

from flask import jsonify


class HttpCode:
    success = 200
    unauth_error = 401
    params_error = 400
    server_error = 500

ShakeM

In some cases for Python unit tests, we want to automatically perform setUp methods in as declared in a base class. However, we still want setUp to work as per normal in the subclass. The following code will proxy the new setUp function to run it's base class' and the new one.

# Define a common test base for starting servers
class MyBaseTestCase(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        """On inherited classes, run our `setUp` method"""
        # Inspired via http://stackoverflow.com/questions/1323455/python-unit-test-with-base-and-sub-class/17696807#17696807
        if cls is not MyBaseTestCase and cls.setUp is not MyBaseTestCase.setUp:

ShakeM

import os

from PIL import Image


def resize(file_name):
    img = Image.open(file_name)
    width = 1700
    height = int(img.size[1] / img.size[0] * width)
    img = img.resize((width, height), Image.ANTIALIAS)