CODEWITHSUNDEEP
pythonmatplotlibubuntutkinter
sunShine
sunShine

Reputation: 155

How can i solve _tkinter.TclError: couldn't connect to display ":0.0" error?

I am trying to use Tkinter in Python for data visualization. The code here:

import fdb
from tkinter import *
from PIL import ImageTk, Image
import numpy as np
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt

import sys
import os

if os.environ.get('DISPLAY','') == '':
    print('no display found. Using :0.0')
    os.environ.__setitem__('DISPLAY', ':0.0')

root = Tk()

def graph():
    plt.hist(total_orders, months)
    plt.show()

root.mainloop()

However, i got this error:

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

After that, I researched and found some solutions for this error. I tried some of them:

1- I added matplotlib.use('Agg') and doesn't work, I got the same error.

2- I added if os.environ.get('DISPLAY','') == '': print('no display found. Using :0.0') os.environ.__setitem__('DISPLAY', ':0.0') it doesn't work either and i got this error:

_tkinter.TclError: couldn't connect to display ":0.0"

I tried to use xhost but even i installed sudo apt-get install x11-xserver-utils xhost run as xhost: unable to open display "".

How can i solve this problem?

Upvotes: 3

Views: 5117

Answers (1)

py660
py660

Reputation: 147

Seeing that your DISPLAY variable is not set, it looks like you are running the program without a connected display. If you are connected via SSH, try using the -X or -Y flags.
Example: ssh -X 10.0.1.59 or ssh -Y 10.0.1.59

Upvotes: 2

Related Questions