[Scons-dev] windows and non-thread Pythons

[Mats Wichmann]

One of the windows scons source files uses subprocess to run vswhere,
and it calls suprocess.communicate.  This is new code and seems to be
working fine as far as I know.

Another source file calls a vcvars* batch script, and does not use
subprocess.communicate, with the following comment:

    # Use the .stdout and .stderr attributes directly because the
    # .communicate() method uses the threading module on Windows
    # and won't work under Pythons not built with threading.

Is that a Thing any longer? Windows Pythons not built with threading? Or
is this a special-case that can be eliminated?