I wanted to draw square with turtle on pyhton 3

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Python

from turtle import *
begin_fill()

Turtle()
right(90)
forward(80)
left(90)
forward(80)
left(90)
forward(80)
left(90)
forward(80)

color('red')
end_fill()
done()

This is my code.And shows this error... Please help me

Traceback (most recent call last):
  File "main.py", line 2, in <module>
    begin_fill()
  File "<string>", line 6, in begin_fill
  File "/usr/local/lib/python3.7/turtle.py", line 3812, in__init__
    Turtle._screen = Screen()
  File "/usr/local/lib/python3.7/turtle.py", line 3662, inScreen
    Turtle._screen = _Screen()
  File "/usr/local/lib/python3.7/turtle.py", line 3678, in__init__
    _Screen._root = self._root = _Root()
  File "/usr/local/lib/python3.7/turtle.py", line 434, in __init__
    TK.Tk.__init__(self)
  File "/usr/local/lib/python3.7/tkinter/__init__.py", line 2023, in __init__
    self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
_tkinter.TclError: no display name and no $DISPLAY environment variable


What I have tried:

I tried so many times , and it didn't work

Posted 15-Jan-20 20:42pm

John14532

Updated 15-Jan-20 23:14pm

Richard MacCutchan

v2

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Richard MacCutchan 16-Jan-20 4:20am

_tkinter.TclError: no display name and no $DISPLAY environment variable

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CPallini · Answer 1 · 2020-01-15T23:15:00

That is not an error of your code. Simply the environment variable DISPLAY is not defined (or visible to the code). You may find some info, for instance, here: raspbian - Error when attempting to create Python GUI using Tkinter: "no display name and no $DISPLAY environment variable" - Raspberry Pi Stack Exchange[^].