Html Variable Value Is Not Changing In Flask

I have written this code in Flask ans = 999 @app.route('/', methods=['POST', 'GET']) def home(): flag = 0 global ans session['ans'] = 0 if (request.method == 'POST'

Solution 1:

You really don't need flag at all, it is confusing the entire logic:

@app.route('/',methods = ['POST','GET'])
def home():
  if request.method == "POST":
      jsdata = request.form['data']
      session['jsdata']=jsdata
      session['ans'] = get_data(session['jsdata'])

  ans = session.get('ans', 999) # try to get it from the session,
                                # if fails, set it to 999 default value

  return render_template('/index.html', ans=ans)