Update app.py

app.py

@@ -1,4 +1,4 @@
-from flask import Flask,render_template,request,Response,jsonify,session,redirect,url_for,session
+from flask import Flask,render_template,request,Response,jsonify,session,redirect,url_for
 import numpy as np
 from sklearn.metrics.pairwise import cosine_similarity
 import matplotlib.pyplot as plt
@@ -14,8 +14,7 @@ from io import BytesIO
 app=Flask(__name__)
 folder='static/images'
 app.config["UPLOAD_FOLDER"]=folder
-app.config['PERMANENT_SESSION_LIFETIME']=3600
-app.secret_key="mykey"
+user="none"
 pair={}
 def pred_ver_and_save_data(img,img_file,data,digit,name,vector,brand,desc,cat,price):
     try:
@@ -60,7 +59,7 @@ def product_panel(product_id):
     return render_template("product_panel.html",product=data[product_id],rec_pro=rec)
 @app.route("/products",methods=["GET"])
 def products():
-    if 'user' not in session:
+    if user=="null":
        return redirect(url_for('login'))
     with open("products.json") as f:
         data=json.load(f)
@@ -68,7 +67,7 @@ def products():
     return render_template("products.html",products=data)
 @app.route("/login",methods=['GET',"POST"])
 def login():
-    if 'user' in session:
+    if user!="null"
         with open("products.json") as file:
             data=json.load(file)
         file.close()    
@@ -83,7 +82,7 @@ def login():
         elif password=="":
             return render_template("login.html")
         elif int(password) == data[name]['password']:
-            session['user']=name
+            user=name
             with open("products.json") as f:
                 pro=json.load(f)
             f.close()    
@@ -94,7 +93,7 @@ def login():
         return render_template("login.html")
 @app.route("/sign_up",methods=["GET","POST"])
 def sign_up():
-    if "user" in session:
+    if user!="null"
         with open("products.json") as f:
             data=json.load(f)
         f.close()  
@@ -109,7 +108,7 @@ def sign_up():
         if name in list(data):
             return redirect(url_for("login"))
         else:
-            session['user']=name
+            user=name
             password=request.form['confirm']
             data[name]={"password":int(password),"products":[],"reviews":[]}
             with open("seller.json","w") as f:
@@ -143,8 +142,8 @@ def seller():
     with open("seller.json") as file:
         seller=json.load(file)
     file.close() 
-    reviews=seller[session['user']]['reviews']   
-    products=seller[session['user']]['products']
+    reviews=seller[user]['reviews']   
+    products=seller[user]['products']
     with open("products.json") as file:
         prod=json.load(file)
     file.close()
@@ -178,8 +177,8 @@ def tell():
             seller=json.load(file)
         file.close()
         new_product_id = f"id{digit+1}"
-        if new_product_id not in seller[session['user']]["products"]:
-            seller[session['user']]["products"].append(new_product_id)     
+        if new_product_id not in seller[user]["products"]:
+            seller[user]["products"].append(new_product_id)     
         with open("seller.json","w") as file:
             json.dump(seller,file)
         file.close()    
@@ -189,7 +188,7 @@ def tell():
         else:
             vector=np.array(vector[:22])  
         threading.Thread(target=pred_ver_and_save_data,args=(img,img_file,data,digit,name,vector,brand,desc,cat,price)).start()     
-        return render_template("seller_dashboard.html",ids=seller[session['user']]["products"][:-1],product=data,reviews=seller[session['user']]["reviews"])
+        return render_template("seller_dashboard.html",ids=seller[user]["products"][:-1],product=data,reviews=seller[user]["reviews"])
 @app.route("/chatbot",methods=["GET","POST"])   
 def chatbot():
     if request.method=="GET":