inital upload

Author: Sanket758

Quotes Web App/QuoteApp.py

@@ -0,0 +1,147 @@
+from flask import Flask, render_template, request, url_for, Markup
+import os
+import pandas as pd
+import numpy as np
+from random import randrange
+
+import nltk
+nltk.download('vader_lexicon')
+
+from nltk.sentiment.vader import SentimentIntensityAnalyzer
+
+app = Flask(__name__)
+
+# load quotes in memory
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+
+# declare global variable
+quotes = None
+
+
+@app.before_request
+def prepare_sentiment_quote_stash():
+    global quotes
+
+    # load the quote stash
+    quotes = pd.read_csv(os.path.join(BASE_DIR, 'quotes.csv'))
+
+    sid = SentimentIntensityAnalyzer()
+
+    all_compounds = []
+    for sentence in quotes['quote']:
+        ss = sid.polarity_scores(sentence)
+        for k in sorted(ss):
+            if k == 'compound':
+                all_compounds.append(ss[k])
+
+
+    # add sentiment to the data
+    quotes['sentiment_score'] = all_compounds
+
+    # create ladder index
+    quotes = quotes.sort_values('sentiment_score')
+    quotes['index'] = [ix for ix in range(0, len(quotes))]
+
+
+
+def gimme_a_quote(direction = None, current_index = None, max_index_value = 0):
+    rand_index = randrange(max_index_value)
+    darker = None
+    brighter = None
+
+
+    # New session visit
+    if current_index is None:
+        brighter = rand_index
+
+    if direction == 'brighter':
+        brighter = current_index
+    else:
+        darker = current_index
+
+    if darker is not None:
+        try:
+            current_index = int(darker)
+        except ValueError:
+            # somebody is gaming the system
+            current_index = rand_index
+
+
+        if current_index > 0:
+            # try for a lesser value than current one
+            rand_index = randrange(0, current_index)
+        else:
+            # already at lowest point so assign a new random of full set
+            rand_index = rand_index
+
+
+    elif brighter is not None:
+        try:
+            current_index = int(brighter)
+        except ValueError:
+            # somebody is gaming the system
+            current_index = rand_index
+
+        # try for a higher value than current one
+        if current_index < max_index_value -1:
+            rand_index = randrange(current_index, max_index_value)
+        else:
+            # already at highest point so assign a new random of full set
+            rand_index = rand_index
+    else:
+        # grab a random value
+        rand_index = rand_index
+
+    return (rand_index)
+
+
+@app.route("/")
+def quote_me():
+    quote_stash_tmp = quotes.copy()
+    max_index_value = np.max(quote_stash_tmp['index'].values)
+    rand_index_value = randrange(max_index_value)
+
+    darker = request.args.get("darker")
+    brighter = request.args.get("brighter")
+
+    if darker is not None:
+
+        try:
+        	current_index = int(darker)
+        except ValueError:
+            # somebody is gaming the system
+            current_index = randrange(max_index_value)
+
+        new_index = gimme_a_quote(direction =  'darker', current_index = current_index, max_index_value = max_index_value)
+
+    elif brighter is not None:
+
+        try:
+            current_index = int(brighter)
+        except ValueError:
+            # somebody is gaming the system
+            current_index = rand_index_value
+
+        new_index = gimme_a_quote(direction =  'brighter', current_index = current_index, max_index_value = max_index_value)
+
+
+    else:
+    	# grab a random value
+    	new_index = randrange(max_index_value)
+
+    random_quote = quote_stash_tmp.iloc[new_index]
+
+
+    # get a random integer between 0 and max_index_value
+    quote=random_quote['quote']
+    author = random_quote['author']
+    current_id =  random_quote['index']
+
+    return render_template("quote.html",
+        quote=quote,
+        author=author,
+        current_id=current_id,)
+
+
+if __name__ == '__main__':
+	app.run()