Python Tkinter multiple line input as integer in list

Question

I have a problem reading multiple lines of coordinates (like x,y) from a Tkinter Textbox. The user input will be this:

41,3
21,12
68,10
etc.

Each Line represents an x,y coordinate. X and Y are seperated by ,. I need to read this coordinates from the text box and process it in a way that an array forms. Like this:

[[41,3],[21,12],[68,10]

What i have so far:

from Tkinter import *


def get_Data():
   text_from_Box = Text_Entry.get("1.0", 'end-1c').split("\n")
   print text_from_Box


master = Tk()

Label(master, text = "Enter coordinates here:").grid(row = 0, sticky = W)

Text_Entry = Text(master, height = 30, width = 30)
Text_Entry.grid(row = 1, column = 0)

Button(master, text = 'Start Calculation', command = get_Data).grid(row = 2,      column = 0, sticky = W)

mainloop()

tobias_k · Accepted Answer · 2016-06-30 14:35:51Z

1

You have to split again at the ',' and convert to int (or float):

def get_Data():
   text_from_Box = Text_Entry.get("1.0", 'end-1c').split("\n")
   numbers = [[int(x) for x in pair.split(",")] for pair in text_from_Box]
   print numbers

answered Jun 30, 2016 at 14:35

tobias_k

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4 Comments

Eular Over a year ago

you can just do [map(float,i.split(",")) for i in text_from_box]

daniel Over a year ago

do you mean: 'numbers = [map(float,i.split(",")) for i in text_from_box]' that didn't work for me

tobias_k Over a year ago

@Eular Yes, but then I'd need to add a few pages of explanation why this works only in Python 2, but not in Python 3. ;-)

Eular Over a year ago

for python 3 wrap it up with a list()

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