As you are using Python 3, the module has been renamed to tkinter, as stated in the documentation:

Note Tkinter has been renamed to tkinter in Python 3. The 2to3 tool
will automatically adapt imports when converting your sources to
Python 3.

check the python version you have installed by using command python --version

check for the Tk module installed correctly from following code

sudo apt-get install python3-tk 

Check if you are using open-source OS then

check the tkinter module in the following path
/home/python/site-packages/tkinter
change the path accordingly your system

For Windows 10 using either VSCode or PyCharm with Python 3.7.4 – make sure Tk is ticked in the install. I tried import tkinter as xyz with upper/lower t and k‘s and all variants without luck.

What works is:

import tkinter
import _tkinter
tkinter._test()

An example in action:

import tkinter
import _tkinter

HEIGHT = 700
WIDTH = 800

root = tkinter.Tk()

canvas = tkinter.Canvas(root, height = HEIGHT, width=WIDTH)
canvas.pack()

frame = tkinter.Frame(root, bg='red')
frame.pack()

root.mainloop()

Make sure that when you are running your python code that it is in the python3 context. I had the same issue and all I had to do was input the command as:

sudo python3 REPLACE.py

versus

sudo python REPLACE.py

the latter code is incorrect because tkinter is apparently unnavailable in python1 or python2.

You just need to install it and import them your project like that :

this code import to command line :

sudo apt-get install python3-tk 

after import tkinter your project :

from tkinter import *

For windows 10, it is important to check in the Python install the optional feature “tcl/tk and IDLE”. Otherwise you get a ModuleNotFoundError: No module named ‘tkinter’. In my case, it was not possible to install tkinter after the Python install with something like “pip install tkinter”

On CentOS7, to get this working with Python2, I had to do:

yum -y install tkinter

Noting this here because I thought that there would be a pip package, but instead, one needs to actually install an rpm.

tkinter comes with python… uninstall python, reinstall it, you’re done

Check apt for tasks, it may be marked for removed

sudo apt autoremove

Then check and install needed

——— WORKED ON PYTHON 2.7————

Install all below packages

sudo apt-get install git
sudo apt-get install python-tk
sudo apt-get install python-pip
sudo apt install picolisp
sudo -H pip2 install --upgrade pip
sudo pip install -I pillow
sudo apt-get install python-imaging-tk
sudo apt-get install python-tk

You might need to install for your specific version, I have known cases where this was needed when I was using many versions of python and one version in a virtualenv using for example python 3.7 was not importing tkinter I would have to install it for that version specifically.

For example

sudo apt-get install python3.7-tk 

No idea why – but this has occured.

Tkinter should come with the latest Python, I don’t think it comes with Python2. I had the same problem but once. I upgraded to Python 3.8 Tkinter was installed.

if it doesnot work in pycharm you can add the module in the project interpreter by searching in +button python-tkinter and download it.

Firstly you should test your python idle to see if you have tkinter:

import tkinter

tkinter._test()

Trying typing it, copy paste doesn’t work.

So after 20 hours of trying every way that recommended on those websites figured out that you can’t use "tkinter.py" or any other file name that contains "tkinter..etc.py". If you have the same problem, just change the file name.

To install the Tkinter on popular Linux distros:

Debian/Ubuntu:

sudo apt install python3-tk -y  

Fedora:

sudo dnf install -y python3-tkinter

Arch:

sudo pacman -Syu tk --noconfirm 

REHL/CentOS6/CentOS7:

sudo yum install -y python3-tkinter

OpenSUSE:

sudo zypper in -y python-tk

try:
    # for Python2
    from Tkinter import *   ## notice capitalized T in Tkinter 
except ImportError:
    try:
        # for Python3
        from tkinter import *   ## notice lowercase 't' in tkinter here
    except:
        try:
            print "Download Tkinter" ##python 2
        except SyntaxError:
            print("Download Tkinter") ##python 3

If you’re using python 3.9 on Mac, you can simply install tkinter using brew:

brew install [email protected]

This fixed it for me.

Edit:
As mentioned by others, you can also use the general command to install the latest version:

brew install python-tk

We can use 2 types of methods for importing libraries

1. work with import library
2. work with from library import *

You can load tkinter using these ways:

1. from tkinter import*

2. import tkinter

Installing Tkinter

python -m pip install tk-tools

or

sudo apt install python3-tk

I resolved my issue in the PyCharm do following

1. Install Python Interpreter from https://www.python.org/
2. PyCharm > Preferences > Python Interpreter > Add
3. Select installed interpreter
4. In the run configuration select the newly installed interpreter

I also made a video instruction what I did https://youtu.be/awaURBnfwxk

$ sudo apt-get install python3.10-tk

For Mac use:

brew install python-tk

cmd – terminal

pip install tkinter

If you have pip on your path, you could (in your command prompt) just type
pip install tkinter
Most versions of python already come with tkinter.

For Windows, try to reinstall python and make sure that during installation process in "Optional Features" it have "tcl/tk and IDLE" option enabled.

You’ll probably need to install Tkinter.
You can do so like this in the Windows command prompt:

pip install tk

On Linux it is possible to have installed two different versions of Python in my case 3.11 and 3.10. Only 3.10 was working with tkinter. 3.10 binary was located in my /usr/bin/python3 and 3.11 was located in /usr/local/sbin/python3. You can either specifically source the version you need or if you are SURE you don’t need 3.11 at the moment, you can sudo cp /usr/bin/python3 /usr/local/sbin/python3 assuming your working version is in bin like mine is.