demo.py

from sentiment_classifier import SentimentClassifier
from codecs import open
import time
from flask import Flask, render_template, request
app = Flask(__name__)

print("Preparing classifier")
start_time = time.time()
classifier = SentimentClassifier()
print("Classifier is ready")
print(time.time() - start_time, "seconds")

@app.route("/", methods=["POST", "GET"])
def index_page(text="", prediction_message=""):
    if request.method == "POST":
        text = request.form["text"]
    if text!="":
        prediction_message = classifier.get_prediction_message(text)
    else:
        prediction_message = "Пожалуйста, введите отзыв"
    return render_template('hello.html', text=text, prediction_message=prediction_message)


if __name__ == "__main__":
    app.run()