Python 3.4 How do you limit user input

Question

I have made a program which requires the user to go and come back after completing the command, I would like the user to press ENTER to then continue the programme, to do this I used a normal Input command that does not record the answer. However I would like it if the user cannot enter any text, the only thing they can do is press ENTER to proceed.

input("Please charge your device, when you are finished, press ENTER on the keyboard")

Please share your efforts, code example of what you've tried. — omri_saadon, Feb 05 '17 at 09:52
there is no standard command for this - you can try to find in internet `keypressed` or `getchar`, `getch` — furas, Feb 05 '17 at 09:59

score 0 · Accepted Answer · edited May 23 '17 at 10:29

0

You can try to write an if loop that checks whatever the input is enter: For example:

import tty
import sys
import termios

orig_settings = termios.tcgetattr(sys.stdin)

tty.setraw(sys.stdin)
x = input("Text")
while x != chr(13): # Enter
    x=sys.stdin.read(1)[0]
    print("ERROR PLEASE TRY AGAIN")
    x = input("Text")

termios.tcsetattr(sys.stdin, termios.TCSADRAIN, orig_settings)

You might like to check this answer by @Turn at the question here: https://stackoverflow.com/a/34497639/2080764

edited May 23 '17 at 10:29

Community

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answered Feb 05 '17 at 11:57

MatejMecka

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I don't want to find out how long it is, I don't want them to be able to enter anything at all. Only of course ENTER to continue. – Chris Feb 05 '17 at 13:01
When they get the option to input something I don't want a word or statement from them I just want them to press ENTER to continue. – Chris Feb 05 '17 at 14:09
Sorry misunderstood i'll fix my answer – MatejMecka Feb 05 '17 at 17:15
I am on windows so I don't think this will work, but thanks anyways! – Chris Feb 08 '17 at 17:34

Python 3.4 How do you limit user input

1 Answers1