Don't crash on _tkinter.createfilehandler in non-threaded Tcl; disable this function in threaded Tcl. Likewise for creaetetimerhandler. Fixes #692416.
Don't crash on _tkinter.createfilehandler in non-threaded Tcl;
disable this function in threaded Tcl. Likewise for creaetetimerhandler.
Fixes #692416.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator