In Python, how to change text after it's printed?

Question

I have a Python program I am writing and I want it to be able to change text after it is printed. For example, let\'s say I want to print \"hello\" and erase one letter eve

Answer 1

You could use this:

call these modules:

import time
import sys

Then copy this method:

    # Custom Print Method
    def custom_print(string, how = "normal", dur = 0, inline = True):

Copy just this part for the method to do typing

# string = the string to print & how = way to print & dur = time to print whole word or letter & inline = print on single line or not
if how == "typing": # if how is equal to typing then run this block of code
    letter = 1
    while letter <= len(string):
        new_string = string[0:letter]
        if inline: sys.stdout.write("\r")
        sys.stdout.write("{0}".format(new_string))
        if inline == False: sys.stdout.write("\n")
        if inline: sys.stdout.flush()
        letter += 1 
        time.sleep(float(dur))

OR just this part of the method for a string to print in reverse

if how == "reverse": # if how is equal to reverse then run this block of code
    new_string = string
    while len(new_string) > 0:
        if inline == True: sys.stdout.write("\r")
        sys.stdout.write('{message: <{fill}}'.format(message=new_string, fill=str(len(string))))
        if inline == False: sys.stdout.write("\n")
        if inline == True: sys.stdout.flush()
        new_string = new_string[0:len(new_string) - 1]
        time.sleep(float(dur))

OR just this part of the method for a normal string to print normally

if how == "normal": # if how is equal to normal then run this block of code
    sys.stdout.write("\r")
    sys.stdout.write(string)
    time.sleep(float(dur))
    sys.stdout.write("\n")

OR you can put all of it in the method for all the options

All you have to do is call custom_print() instead ofprint`

# custom_print("string", "howtoprint", seconds in int, inline:true or false)
custom_print("hello", "reverse", 1) # for reverse printing hello
custom_print("hello", "typing", 1) # for typing hello slowly
custom_print("hello", "normal", 0) # for just printing hello
custom_print("hello") # for just printing hello