[pre-commit.ci lite] apply automatic fixes

examples/Blockchain-Based-E_voting/app(1).py

@@ -1,30 +1,42 @@
-from flask import Flask, render_template, request, redirect, url_for, session
 import sqlite3
-from my_blockchain import Blockchain
+
 import cv2
+from my_blockchain import Blockchain
+
+from flask import Flask
+from flask import redirect
+from flask import render_template
+from flask import request
+from flask import session
+from flask import url_for
 
 app = Flask(__name__)
 app.secret_key = "e-voting-secure-key"
 voting_chain = Blockchain()
 
 # Load face detection model
-face_cascade = cv2.CascadeClassifier(cv2.data.haarcascades + "haarcascade_frontalface_default.xml")
+face_cascade = cv2.CascadeClassifier(
+    cv2.data.haarcascades + "haarcascade_frontalface_default.xml"
+)
+
 
 # Database Connection
 def get_db_connection():
-    conn = sqlite3.connect('voters.db')
+    conn = sqlite3.connect("voters.db")
     conn.row_factory = sqlite3.Row
     return conn
 
+
 # Home Route
-@app.route('/')
+@app.route("/")
 def home():
-    return render_template('index.html')
+    return render_template("index.html")
+
 
 # Voter Authentication (Live Face Detection)
-@app.route('/login', methods=['POST'])
+@app.route("/login", methods=["POST"])
 def login():
-    voter_name = request.form['name']
+    voter_name = request.form["name"]
 
     # Check voter in database
     conn = get_db_connection()
@@ -44,54 +56,59 @@ def login():
                 break
 
             gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
-            faces = face_cascade.detectMultiScale(gray, scaleFactor=1.1, minNeighbors=5, minSize=(100, 100))
+            faces = face_cascade.detectMultiScale(
+                gray, scaleFactor=1.1, minNeighbors=5, minSize=(100, 100)
+            )
 
             if len(faces) > 0:
                 verified = True
                 break
 
             cv2.imshow("Face Verification - Press 'Q' to Exit", frame)
-            if cv2.waitKey(1) & 0xFF == ord('q'):
+            if cv2.waitKey(1) & 0xFF == ord("q"):
                 break
 
         cap.release()
         cv2.destroyAllWindows()
 
         if verified:
-            session['voter_name'] = voter_name
+            session["voter_name"] = voter_name
-            return redirect(url_for('vote'))
+            return redirect(url_for("vote"))
         else:
             return "❌ Face Verification Failed! Try Again."
 
     return "❌ Voter Not Found! Please Register First."
 
-# Voting Page
-@app.route('/vote', methods=['GET', 'POST'])
-def vote():
-    if 'voter_name' not in session:
-        return redirect(url_for('home'))
 
-    if request.method == 'POST':
+# Voting Page
-        vote_choice = request.form['vote']
+@app.route("/vote", methods=["GET", "POST"])
-        voter_name = session['voter_name']
+def vote():
+    if "voter_name" not in session:
+        return redirect(url_for("home"))
+
+    if request.method == "POST":
+        vote_choice = request.form["vote"]
+        voter_name = session["voter_name"]
 
         voting_chain.add_vote(voter_name, vote_choice)
-        session.pop('voter_name', None)
+        session.pop("voter_name", None)
 
-        return redirect(url_for('results'))
+        return redirect(url_for("results"))
+
+    return render_template("vote.html")
 
-    return render_template('vote.html')
 
 # Results Page
-@app.route('/results')
+@app.route("/results")
 def results():
     vote_counts = {}
     for block in voting_chain.chain[1:]:
-        vote = block['vote']
+        vote = block["vote"]
         vote_counts[vote] = vote_counts.get(vote, 0) + 1
 
-    return render_template('results.html', votes=vote_counts)
+    return render_template("results.html", votes=vote_counts)
+
 
 # Run Flask App
-if __name__ == '__main__':
+if __name__ == "__main__":
     app.run(debug=True)