UserWarning Matplotlib is currently using agg which is a non-GUI backend so cannot show the figure when plotting figure with pyplot on Pycharm

Question

I am trying to plot a simple graph using pyplot  e g    import matplotlib pyplot as plt plt plot  1 2 3   5 7 4   plt show     but the figure does not appear and I get the following message   UserWarning  Matplotlib is currently using agg  which is a non-GUI backend  so cannot show the figure    I saw in several places that one had to change the configuration of matplotlib using the following   import matplotlib matplotlib use  TkAgg   import matplotlib pyplot as plt   I did this  but then got an error message because it cannot find a module   ModuleNotFoundError  No module named  tkinter    Then  I tried to install  tkinter  using pip install tkinter  inside the virtual environment   but it does not find it   Collecting tkinter   Could not find a version that satisfies the requirement tkinter  from versions    No matching distribution found for tkinter   I should also mention that I am running all this on Pycharm Community Edition IDE using a virtual environment  and that my operating system is Linux Ubuntu 18 04   I would like to know how I can solve this problem in order to be able to display the graph

User · Answer

The comment by  xicocaio should be highlighted  tkinter is python version-specific in the sense that sudo apt-get install python3-tk will install tkinter exclusively for your default version of python  Suppose you have different python versions within various virtual environments  you will have to install tkinter for the desired python version used in that virtual environment  For example  sudo apt-get install python3 7-tk  Not doing this will still lead to No module named   tkinter  errors  even after installing it for the global python version

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issue      UserWarning  Matplotlib is currently using agg  which is a non-GUI backend  so cannot show the figure     And this worked for me import matplotlib import matplotlib pyplot as plt matplotlib use  Qt5Agg

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I found a solution to my problem  thanks to the help of ImportanceOfBeingErnest    All I had to do was to install tkinter through the Linux bash terminal using the following command   sudo apt-get install python3-tk   instead of installing it with pip or directly in the virtual environment in Pycharm

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Just in case if this helps anybody   Python version  3 7 7 platform  Ubuntu 18 04 4 LTS  This came with default python version 3 6 9  however I had installed my own 3 7 7 version python on it  installed building it from source   tkinter was not working even when the help  module   shows tkinter in the list   The following steps worked for me    sudo apt-get install tk-dev    rebuild the python  1  Navigate to your python folder and run the checks   cd Python-3 7 7 sudo   configure --enable-optimizations    Build using make command  sudo make -j 8    --- here 8 are the number of processors  check yours using nproc command  Installing using   sudo make altinstall    Don t use sudo make install  it will overwrite default 3 6 9 version  which might be messy later    Check tkinter now  python3 7 -m tkinter    A windows box will pop up  your tkinter is ready now

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In my case  the error message was implying that I was working in a headless console  So plt show   could not work  What worked was calling plt savefig   import matplotlib pyplot as plt  plt plot  1 2 3    5 7 4   plt savefig  mygraph png     I found the answer on a github repository

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This worked with R reticulate  Found it here  1  matplotlib use   tkagg    or 2  matplotlib use   tkagg    For example  import numpy as np import matplotlib pyplot as plt from matplotlib import style  import matplotlib matplotlib use   tkagg      style use  quot ggplot quot   from sklearn import svm  x    1  5  1 5  8  1  9  y    2  8  1 8  8  0 6  11   plt scatter x y  plt show

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I too had this issue in PyCharm  This issue is because you don t have tkinter module in your machine   To install follow the steps given below  select your appropriate os   For ubuntu users    sudo apt-get install python-tk   or   sudo apt-get install python3-tk   For Centos users   sudo yum install python-tkinter   or   sudo yum install python3-tkinter   For Windows  use pip to install tk  After installing tkinter restart your Pycharm and run your code  it will work

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Linux Mint 19  Helped for me   sudo apt install tk-dev   P S  Recompile python interpreter after package install

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After upgrading lots of packages  Spyder 3 to 4  Keras and Tensorflow and lots of their dependencies   I had the same problem today  I cannot figure out what happened  but the  conda-based  virtual environment that kept using Spyder 3 did not have the problem  Although installing tkinter or changing the backend  via matplotlib use  TkAgg  as shown above  or this nice post on  how to change the backend   might well resolve the problem  I don t see these as rigid solutions  For me  uninstalling matplotlib and reinstalling it was magic and the problem was solved   pip uninstall matplotlib       then  install  pip install matplotlib   From all the above  this could be a package management problem  and BTW  I use both conda and pip  whenever feasible

User · Answer

Simple install pip3 install PyQt5  5 9 2  It works for me

User · Answer

If you use Arch Linux  distributions like Manjaro or Antegros  simply type   sudo pacman -S tk   And all will work perfectly

User · Answer

You can change the matplotlib using backend using the from agg to Tkinter TKAgg using command matplotlib use  TKAgg  warn False  force True

User · Answer

When I ran into this error on Spyder  I changed from running my code line by line to highlighting my block of plotting code and running that all at once  Voila  the image appeared

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I added  matplotlib inline and my plot showed up in Jupyter Notebook

User · Answer

Try import tkinter because pycharm already installed tkinter for you  I looked Install tkinter for Python   You can maybe try   import tkinter import matplotlib matplotlib use  TkAgg   plt plot  1 2 3   5 7 4   plt show     as a tkinter-installing way  I ve tried your way  it seems no error to run at my computer  it successfully shows the figure  maybe because pycharm have tkinter as a system package  so u don t need to install it  But if u can t find tkinter inside  you can go to Tkdocs to see the way of installing tkinter  as it mentions  tkinter is a core package for python

[python] "UserWarning: Matplotlib is currently using agg, which is a non-GUI backend, so cannot show the figure." when plotting figure with pyplot on Pycharm

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