Why am I getting a \"ModuleNotFoundError: No module named \'Tkinter\'\" when importing Tkinter in Python?

ModuleNotFoundError: No module named 'Tkinter'

When attempting to import the Tkinter module in Python (or tkinter in Python 3), some users may encounter this error:

ModuleNotFoundError: No module named 'Tkinter'
or
ModuleNotFoundError: No module named 'tkinter'

Cause and Solution:

This error occurs when the Tkinter module is not installed on your system. To resolve this issue, you need to install the appropriate package for your operating system and Python version. Here are some examples:

• Ubuntu or other distros with Apt:

sudo apt-get install python3-tk

• Fedora:

sudo dnf install python3-tkinter

You can also specify the Python version number, such as:

sudo apt-get install python3.7-tk
sudo dnf install python3-tkinter-3.6.6-1.fc28.x86_64

After installing the package, restart your Python interpreter and try importing Tkinter (or tkinter in Python 3) again. If you are using both Python 2 and 3, you can ensure compatibility by importing the Tkinter module based on the Python version:

import sys
if sys.version_info[0] == 3:
    import tkinter as tk
else:
    import Tkinter as tk

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