begin to start app backend

requirements.txt

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+Flask~=1.1.2
+python-dotenv~=0.14.0
+libsass~=0.20.0
+gunicorn~=20.0.4
+Flask-WTF~=0.14.3
+# flask-sqlalchemy~=2.4.4
+# psycopg2~=2.8.5
+# Flask-Migrate~=2.5.3
+# SQLAlchemy~=1.3.18
+# alembic~=1.4.2
+click~=7.1.2
+Werkzeug~=1.0.1

the_office/create_app.py

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+"""
+create_app.py
+
+The create_app function used to create and initialize the app with all of it's extensions and settings.
+"""
+
+from flask import Flask, render_template
+from flask_migrate import Migrate
+from flask_sqlalchemy import SQLAlchemy
+from flask_wtf.csrf import CSRFProtect
+from sassutils.wsgi import SassMiddleware
+from werkzeug.exceptions import HTTPException
+from flask_static_digest import FlaskStaticDigest
+
+from the_office.config import configs
+
+# flask_static_digest = FlaskStaticDigest()
+db = SQLAlchemy()
+csrf = CSRFProtect()
+migrate = Migrate()
+
+
+def create_app(env=None):
+    """
+    The create_app function used to create and initialize the app with all of it's extensions and settings.
+    """
+    app = Flask(__name__)
+
+    # Add Sass middleware (black magic)
+    app.wsgi_app = SassMiddleware(app.wsgi_app, {
+        'unimatch': ('static/sass', 'static/css', '/static/css', False)
+    })
+
+    # Load configuration values
+    if not env:
+        env = app.config['ENV']
+    app.config.from_object(configs[env])
+
+    # Fixes poor whitespace rendering in templates
+    app.jinja_env.trim_blocks = True
+    app.jinja_env.lstrip_blocks = True
+
+    # Initialize Flask extensions
+    db.init_app(app)
+    csrf.init_app(app)
+    migrate.init_app(app, db)
+
+    # flask_static_digest.init_app(app)
+    # CLI commands setup
+    @app.shell_context_processor
+    def shell_context():
+        """Provides specific Flask components to the shell."""
+        return {'app': app, 'db': db}
+
+    # Custom error handler page (all errors)
+    @app.errorhandler(HTTPException)
+    def handle_exception(e):
+        """Error handler, sends users to a custom error page template."""
+        return render_template('error.html', exception=e), e.code
+
+    @app.context_processor
+    def inject_debug():
+        """
+        Allows for testing for debug mode in jinja2 templates.
+        """
+        return dict(debug=app.debug)
+
+    # noinspection PyUnresolvedReferences
+    from unimatch import models
+    with app.app_context():
+        db.create_all()
+        # noinspection PyUnresolvedReferences
+        from unimatch import routes
+
+    # Register custom commands
+    from unimatch import commands
+    app.cli.add_command(commands.load_colleges)
+
+    return app