Python Forum
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Validating user input
#1
I am new to Python and do not know how to do the following:

I have an input statement asking the user to enter 4 values. I then validate these values and if anyone fails the validation, I need the user to re-enter the values.

What construct can I use to do this (since Python does not have a goto!)?
Reply
#2
Without code, it is difficult to see what kind of validation you need.
Paul
It is more important to do the right thing, than to do the thing right.(P.Drucker)
Better is the enemy of good. (Montesquieu) = French version for 'kiss'.
Reply
#3
Basic example might be like this:
while True:
    name = input('a name: ')
    if name == 'John':
        print('true')
        break
    else:
        print('False')
        continue
Output:
a name: bob Incorrect. Try again. a name: John true
I welcome all feedback.
The only dumb question, is one that doesn't get asked.
My Github
How to post code using bbtags


Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  WHILE LOOP NOT RETURNING USER INPUT AFTER ZerroDivisionError! HELP! ayodele_martins1 7 990 Oct-01-2023, 07:36 PM
Last Post: ayodele_martins1
  restrict user input to numerical values MCL169 2 869 Apr-08-2023, 05:40 PM
Last Post: MCL169
  user input values into list of lists tauros73 3 1,023 Dec-29-2022, 05:54 PM
Last Post: deanhystad
Information How to take url in telegram bot user input and put it as an argument in a function? askfriends 0 1,026 Dec-25-2022, 03:00 PM
Last Post: askfriends
  [split] formula for validating monetary values? kakos_k9 1 726 Dec-17-2022, 09:28 PM
Last Post: woooee
Question Take user input and split files using 7z in python askfriends 2 1,028 Dec-11-2022, 07:39 PM
Last Post: snippsat
Sad how to validate user input from database johnconar 3 1,837 Sep-11-2022, 12:36 PM
Last Post: ndc85430
  How to split the input taken from user into a single character? mHosseinDS86 3 1,137 Aug-17-2022, 12:43 PM
Last Post: Pedroski55
  Use pexpect to send user input alisha17 0 1,826 May-10-2022, 02:44 AM
Last Post: alisha17
  WHILE Loop - constant variables NOT working with user input boundaries C0D3R 4 1,434 Apr-05-2022, 06:18 AM
Last Post: C0D3R

Forum Jump:

User Panel Messages

Announcements
Announcement #1 8/1/2020
Announcement #2 8/2/2020
Announcement #3 8/6/2020