Python: Blog flask app

app.py

# We first import all the libraries needed
from flask import Flask, request, render_template, jsonify
from yhat import Yhat
import os

#We create the application object of class Flask
app = Flask(__name__)

# We set our credential to access our model on yhat from the Flask app
yh = Yhat(os.environ.get("YHAT_USERNAME"), os.environ.get("YHAT_APIKEY"))

# The route decorator below links the hello function to the url "/"
@app.route("/", methods=["GET", "POST"])

def hello():
    # If nothing is posted on the form just return home.html 
    if request.method=="GET":
            return render_template("home.html")
    
    # Otherwise go fetch the data and format it properly 
    else:
        data = request.form.get('entry')
    
        data = {
             "content": [data]
             }    
    
    # Call the model on yhat 
    results = yh.predict("NYTimesClassifier", 1, data)
    
    # Return the results
    return jsonify({"results": results})
    
# Run the app
if __name__ == '__main__':
    app.run(port=int(os.environ.get('PORT', 5000)))