How do I install tkinter on RedHat?

Question

I am trying to install tkinter on Redhat 7.7. I have tried every combination if "sudo yum install [whatever]" and every single time it comes up with "No package [whatever] available".

pip install tkinter
pip3 install tkinter
sudo yum install python3-tkinter
sudo yum install tkinter
sudo yum install python36-tkinter
sudo yum -y install python36u-tkinter
sudo yum -y install python36-tkinter
sudo yum install tkinter
sudo yum install python36-tkinter
sudo yum install python35-tkinter.x86_64

...etc

I have tried to find what repository I might need to enable but RedHat support is all behind a pay wall. What repository do I need to enable?

At this point I am actually considering just switching to Ubuntu as RedHat is giving me all sorts of problems.

EDIT: I tried yum search tkinter and got the following:

Loaded plugins: langpacks, product-id, search-disabled-repos, subscription- 
manager
Repo rhel-7-workstation-rpms forced skip_if_unavailable=True due to: 
/etc/pki/entitlement/4690243650278863397-key.pem
====================== Matched:tkinter==========================
python3.x86_64 : Interpreter of the Python programming language

I already have python3 installed. I don't know if had I installed via sudo yum install python3.x86_64 vs sudo yum install python3 I would have got different results.

Answer 1

This works for me!

sudo yum search tkinter 
sudo yum install python3-tkinter.x86_64

Answer 2

Alright, so I managed to fix this to my satisfaction. What I did is outlined here. First I installed ActiveState's ActiveTcl 8.5, then rebuilt python 3.6 manually by downloading the source using the following:

$: ./configure --with-tcltk-includes='-I/opt/ActiveTcl-8.5/include' 
--with-tcltk-libs='/opt/ActiveTcl-8.5/lib/libtcl8.5.so /opt/ActiveTcl- 
8.6/lib/libtk8.5.so'

$: make

$: make install

Because I had a couple different versions of Python 3.x, I had to add the following to the .bashrc:

export PYTHONPATH=/usr/local/lib/python36.zip:/usr/local/lib/python3.6:/usr/local/lib/python3.6/lib-dynload:/usr/local/lib/python3.6/site-packages:/usr/local/lib64/python3.6/site-packages

One big issue I ran into was first manually installing Python 3.8 (which came out yesterday) for which there seems to be little support for most packages so far, so be advised. I also had a few system-specific issues with pip.