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python – _tkinter.TclError: no display name and no $DISPLAY environment variable – Stack Overflow
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- Summary of article content: Articles about python – _tkinter.TclError: no display name and no $DISPLAY environment variable – Stack Overflow A good explanation of what the display environment variable is doing and why the syntax is so odd can be found here: … …
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Lỗi: no display name and no $DISPLAY environment variable in Python – programming – Dạy Nhau Học
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- Summary of article content: Articles about Lỗi: no display name and no $DISPLAY environment variable in Python – programming – Dạy Nhau Học Lỗi: no display name and no $DISPLAY environment variable in Python ; Chen12 (KentChen) March 12, 2018, 1:19pm #1 ; Dark.Hades (Ichiro) March 12, 2018, 10:16am #2. …
- Most searched keywords: Whether you are looking for Lỗi: no display name and no $DISPLAY environment variable in Python – programming – Dạy Nhau Học Lỗi: no display name and no $DISPLAY environment variable in Python ; Chen12 (KentChen) March 12, 2018, 1:19pm #1 ; Dark.Hades (Ichiro) March 12, 2018, 10:16am #2. Tôi có đoạn code như sau:
#import matplotlib
#matplotlib.use('Agg')
import matplotlib.pyplot as plt
import numpy as np
import matplotlib.pyplot as plt
n = 1000
X = np.linspace(-np.pi, np.pi, 256, endpoint=True)
C,S = n… - Table of Contents:
The best way to fix _tkinter.tclerror: no display name and no $display environment variable error – ITtutoria
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- Most searched keywords: Whether you are looking for The best way to fix _tkinter.tclerror: no display name and no $display environment variable error – ITtutoria The best way to fix _tkinter.tclerror: no display name and no $display environment variable error. 16. I get an errorTraceback (most recent call last):
File “example.py”, line 7, in <module>
plt.scatter(x, y, s=20)
File “/home/USER/.virtualenvs/nnet/lib/python2.7/site-packages/matplotlib/pyplot.py”, line 3241, in scatter
ax = gca()
File “/home/USER/.virtualenvs/nnet/lib/python2.7/site-packages/matplotlib/pyplot.py”, line 928, in …no display nameThe best way to fix _tkinter.tclerror: no display name and no $display environment variable error - Table of Contents:
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raspbian – Error when attempting to create Python GUI using Tkinter: “no display name and no $DISPLAY environment variable” – Raspberry Pi Stack Exchange
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Matplotlib: Khắc phục lỗi “_tkinter.TclError: no display name and no $DISPLAY environment variable” – NVB Online
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_tkinter.tclerror: no display name and no $display environment variable [Step-by-step Guide] | StepZOON
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- Summary of article content: Articles about _tkinter.tclerror: no display name and no $display environment variable [Step-by-step Guide] | StepZOON Also you may try to export display: export … …
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Lỗi khi chạy tkinter trong python “không có tên hiển thị và không có biến môi trường $ DISPLAY” trong khi chạy mã
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_tkinterTclError không có tên hiển thị và không có biến môi trường $ DISPLAY
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No Display Name And No Display Environment Variable Using Tkinter On Raspberry
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No Display Name And No Display Environment Variable Using Tkinter On Raspberry _tkinter.TclError: no display name and no $DISPLAY environment variable. Now I have seen this error on other threads and many seem to relate to initialising … … - Most searched keywords: Whether you are looking for
No Display Name And No Display Environment Variable Using Tkinter On Raspberry _tkinter.TclError: no display name and no $DISPLAY environment variable. Now I have seen this error on other threads and many seem to relate to initialising … my first post so apologies if I do anything wrong. I have written a python script using tkinter on python3 that runs totally fine from with… - Table of Contents:
No display name and no $DISPLAY environment variable using tkinter on raspberry Pi B+ from boot shell script
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TclError: no display name and no $DISPLAY environment variable | Deepnote Community
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- Summary of article content: Articles about TclError: no display name and no $DISPLAY environment variable | Deepnote Community TclError: no display name and no $DISPLAY environment variable. I know this is a typical issue for Jupyter Notebook running remotely. …
- Most searched keywords: Whether you are looking for TclError: no display name and no $DISPLAY environment variable | Deepnote Community TclError: no display name and no $DISPLAY environment variable. I know this is a typical issue for Jupyter Notebook running remotely. Hi,
I’m trying to test PySimpleGUI on Deepnote with some codes like this:
import PySimpleGUI as sg
layout = [[sg.Button(f'{row}, {col}’) for col in range(4)] for row in range(4)] event, values = sg.Window(‘List Comprehensions’, layout).read(close=Tru… - Table of Contents:
_tkinter.Tclerror: No Display Name and No $Display Environment Variable: How To Fix
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- Most searched keywords: Whether you are looking for _tkinter.Tclerror: No Display Name and No $Display Environment Variable: How To Fix The _tkinter.tclerror: no display name and no $display environment variable is a matplotlib error that arises when plotting data remotely. The _tkinter.tclerror: no display name and no $display environment variable is a matplotlib error that arises when plotting data remotely. Learn more here.
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Why Am I Getting this Error
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FAQs
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_tkinter.TclError: no display name and no $DISPLAY environment variable
Though there is a solution use(‘Agg’) , someone may be interested in solving x11.
So let’s say we have a user ml , on ubuntu20 with python3…
First, log in as ml , and write a ml.py
$ cat ml.py import matplotlib.pyplot as plt import numpy as np x = np.random.randn(60) y = np.random.randn(60) plt.scatter(x, y, s=20) out_png = ‘out_file.png’ plt.savefig(out_png, dpi=150)
Before run the file, we should set up x11,
$ whoami ml $ touch ~/.Xauthority $ ls .Xauthority .Xauthority # only this one key is needed for X11 over SSH xauth generate :14 . trusted $ echo $DISPLAY localhost:14.0 $ xauth list ml/unix:14 MIT-MAGIC-COOKIE-1 b6a2833785df5e75e2c8bc34045a55a6
Run…
$ python3 ml.py Matplotlib created a temporary config/cache directory at /tmp/matplotlib-rk288ipf because the default path (/home/ml/.config/matplotlib) is not a writable directory; it is highly recommended to set the MPLCONFIGDIR environment variable to a writable directory, in particular to speed up the import of Matplotlib and to better support multiprocessing. Matplotlib is building the font cache; this may take a moment. qt.qpa.xcb: X server does not support XInput 2 failed to get the current screen resources
Well, update OpenGL and x11-apps, rerun
$ python3 ml.py Matplotlib created a temporary config/cache directory at /tmp/matplotlib-87at6bw8 because the default path (/home/zzx/.config/matplotlib) is not a writable directory; it is highly recommended to set the MPLCONFIGDIR environment variable to a writable directory, in particular to speed up the import of Matplotlib and to better support multiprocessing. qt.qpa.xcb: X server does not support XInput 2 failed to get the current screen resources
Seems we can not get the out_file.png , but…
$ export QT_DEBUG_PLUGINS=1
And rerun the file, we get the image, 🙂
Error when attempting to create Python GUI using Tkinter: “no display name and no $DISPLAY environment variable”
Sup,
I am simply trying to use Tkinter (a Python GUI creator) to create a GUI on my Raspberry Pi .
(a Python GUI creator) to create a GUI on my . To start, I only want a GUI to show up on my screen . That’s it!
. That’s it! The code DOES work on my PC
The code does NOT work on my Raspberry Pi
The entire script looks as follows:
(works on my PC, bringing up an empty GUI)
import Tkinter root = Tkinter.Tk() root.mainloop()
Trying to run the program in terminal as follows:
sudo python GUI.py
Produces the following error:
Traceback (most recent call last): File “GUI.py”, line 4, in root = Tkinter.Tk() File “/usr/lib/python2.7/lib-tk/Tkinter.py”, line 1817, in init self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable
Does anybody have any idea how I can resolve this issue? The error is produced under all of the following conditions:
Direct HDMI to computer monitor
DSI connection to touchscreen LCD
SSH on computer monitor
For reference, if I type the following into my terminal:
echo $DISPLAY
An empty string gets printed, so I believe therein lies the problem
The following commands don’t work either, which might shed light on the problem:
sudo apt-get update
Matplotlib: Khắc phục lỗi “_tkinter.TclError: no display name and no $DISPLAY environment variable”
Mặc định thư viện Matplotlib trong Python sử dụng GUI framework cho backend để hiển thị hình ảnh. Nếu Matplotlib không tìm được GUI framework cần thiết (máy không có GUI hoặc đăng nhập vào server thông qua SSH) thì sẽ bị lỗi như sau khi chạy script:
_tkinter.TclError: no display name and no $DISPLAY environment variable
Có thể khác phục lỗi này bằng cách thiết lập để Matplotlib xuất nội dung ra file ảnh thay cho GUI.
Tuy nhiên ngay cả khi xuất nội dung ra file ảnh cũng cần phải thay đổi backend của Matplotlib để không bị lỗi trên.
Có 2 cách chủ yếu để thay đổi backend của Matplotlib.
Cách 1: Thay đổi trong mỗi file script
Thêm nội dung sau ở trên cùng mỗi file python có sử dụng Matplotlib
import matplotlib matplotlib.use(‘Agg’)
Cách 2: Thay đổi trong file config của Matplotlib
Ở cách 1 có thể linh hoạt thay đổi chỉ khi nào cần thiết nhưng khá phiền phức nếu số lượng file nhiều.
Nếu hệ thống không cần thiết phải xuất nội dung ra GUI mà luôn xuất ra file ảnh thì có thể thay đổi luôn nội dung file config của Matplotlib.
Tìm đường dẫn file config của Matplotlib
>>> import matplotlib >>> matplotlib.matplotlib_fname() ‘/vagrant/pythonenv-learn-deeplearning/lib/python3.5/site-packages/matplotlib/mpl-data/matplotlibrc’
Đường dẫn của file config hiện tại là /vagrant/pythonenv-learn-deeplearning/lib/python3.5/site-packages/matplotlib/mpl-data/matplotlibrc .
So you have finished reading the tclerror no display name and no display environment variable topic article, if you find this article useful, please share it. Thank you very much. See more: Ubuntu display environment variable, Unknown error no $display name and no $display environment variable, Linux display environment variable, _Tkinter tclerror couldn t connect to display 0, From turtle import, Tkinter colab, Source code Tkinter Python, Command Tkinter
