Error encountered while searching for module 'tkinter' during the installation of Python version 3.12.0 with pyenv on Fedora 38

Trying to install the latest version of Python 3.12.0 on Fedora 38 using pyenv with the command pyenv install 3.12.0

Encountering the following error -

~ pyenv install 3.12.0  
  Downloading Python-3.12.0.tar.xz...
  -> https://www.python.org/ftp/python/3.12.0/Python-3.12.0.tar.xz
  Installing Python-3.12.0...
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/home/raj/.pyenv/versions/3.12.0/lib/python3.12/tkinter/__init__.py", line 38, in <module>
      import _tkinter # If this fails your Python may not be configured for Tk
      ^^^^^^^^^^^^^^^
  ModuleNotFoundError: No module named '_tkinter'
  WARNING: The Python tkinter extension was not compiled and GUI subsystem has been detected. Missing the Tk toolkit?
  Installed Python-3.12.0 to /home/raj/.pyenv/versions/3.12.0

Tried installing tkinter in Fedora but it seems the version is 3.11.6.

 ~ sudo dnf install python3-tkinter -y        
  Last metadata expiration check: 1:29:18 ago on Tue 17 Oct 2023 09:30:15 PM PDT.
  Package python3-tkinter-3.11.6-1.fc38.x86_64 is already installed.
  Dependencies resolved.

How can this error be fixed?

Note:

Operating System Details 

~ lsb_release -a     
LSB Version:    :core-4.1-amd64:core-4.1-noarch
Distributor ID: Fedora
Description:    Fedora release 38 (Thirty Eight)
Release:        38
Codename:       ThirtyEight

pyenv version 

~ pyenv --version    
pyenv 2.3.30
pythontkinterpyenv

Answer №1

Make sure to update your system's package list and install all the necessary packages

sudo apt-get update
sudo apt-get install tk-dev

Don't forget to set the TCL_LIBRARY and TK_LIBRARY environment variables. You can either do this in your shell configuration file (such as ~/.bashrc or ~/.zshrc) or set them temporarily for your current session. Replace <path_to_tcl> and <path_to_tk> with the correct paths

export TCL_LIBRARY="<path_to_tcl>/lib"
export TK_LIBRARY="<path_to_tk>/lib"

After making these changes, open a new terminal window

pyenv install 3.12.0

By following these steps, you should be able to successfully compile Python 3.12.0 with Tkinter support

Answer №2

If you're facing this issue on macOS as well (which is why I landed here), it might look something like this:

python-build: use openssl@3 from homebrew
python-build: use readline from homebrew
Downloading Python-3.12.2.tar.xz...
-> https://www.python.org/ftp/python/3.12.2/Python-3.12.2.tar.xz
Installing Python-3.12.2...
python-build: use readline from homebrew
python-build: use zlib from xcode sdk
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/Users/me/.pyenv/versions/3.12.2/lib/python3.12/tkinter/__init__.py", line 38, in <module>
    import _tkinter # If this fails your Python may not be configured for Tk
    ^^^^^^^^^^^^^^^
ModuleNotFoundError: No module named '_tkinter'
WARNING: The Python tkinter extension was not compiled and GUI subsystem has been detected. Missing the Tk toolkit?
Installed Python-3.12.2 to /Users/me/.pyenv/versions/3.12.2

It's important to note that a line is missing: 

python-build: use tcl-tk from homebrew
. As suggested by https://github.com/pyenv/pyenv/wiki#suggested-build-environment, along with XCode Command Line tools, you should also have: 
brew install openssl readline sqlite3 xz zlib tcl-tk

After installing tcl-tk, running python install 3.12 again should resolve the issue.

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