Use a locally built Tk for Python?

[Mark Summerfield]

Hi,

I have multiple Pythons locally installed so that I can test against
different versions. (On a 64-bit Debian stable system.)

All of them use the system's Tcl/Tk installation. However, I want to
make some of them use a locally build Tcl/Tk that has a small
customization.

There doesn't seem to be any --with-tk or --with-tcl options for
configure that would allow me to say where my local Tcl/Tk is.

So I ran ./configure --prefix=/home/mark/opt/py32tkmod

And then I tried editing Modules/Setup: I just uncommented and edited
the _tkinter line as follows:

_tkinter _tkinter.c tkappinit.c -DWITH_APPINIT \
    -L/home/mark/opt/tcltk85/lib \
    -I/home/mark/opt/tcltk85/include \
    -I/usr/X11R6/include \
    -ltk8.5 -ltcl8.5 \
    -L/usr/X11R6/lib \
    -lX11

But when I run ~/opt/py32tkmod/bin/python3 tkinter-test.pyw the system
tk is being used not my customized one.

Can anyone advise?

Thanks!