CODEWITHSUNDEEP
pythonpython-3.x
Joao Vitorino
Joao Vitorino

Reputation: 3256

Python newline after input n characters

I need to create a script that read the user input, but after n characters python create a newline.

Example:

The user input the follow, after 'H','0' and '1' the script create e newline and start to read the input again.

ABCDEFGH

12345670

HIJKLMN1

8900000

I don't want the user to press "Enter" after 'H" or after the 8th character, instead python will put the cursor in a newline.

Upvotes: 1

Views: 9671

Answers (1)

Kristian Martinsen
Kristian Martinsen

Reputation: 95

You can detect a key press and if that char is G 7 or N you can add a new line "\n"

You can check out this thread to see how you can detect keypresses.

Polling the keyboard (detect a keypress) in python

check out the bottom answer, it includes a package for easily detecting presses

Update

You will ned to use some keypress detection or something instead of while loop to do this "on the fly", but I think this will get you started;

(though this is working, while() is only there to show where onpress or what you come up with should be, can be removed and script works fine)

import sys
#you need to change while() with on_press from a click listener or something
        while(True):
            bytes = sys.stdin.read() #reads "string"
            size_of_stdin = len(bytes) #reads string length
                if size_of_stdin > 7: ## size greater than 7 print;
                    print "You won!!" # prints
                    print "\n\n" # newlines

Reason you need to detect keypresses is that you have to "execute" the script manually now.

As in enter some text

1234567 (press enter)

then ctrl+z and enter again. (just to make it harder :p)

Then it looks like this in your terminal

1234567

^Z

You won!!

Hope you figure it out, let me know if anything is unclear or if you don't find a way to detect presses and execute on after 7 presses.

Upvotes: 2

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