Issue #18101: Tcl.split() now process strings nested in a tuple as it

do with byte strings.

Added tests for Tcl.split() and Tcl.splitline().

diff --cc Misc/NEWS
index e62f05a42a9bb30ebc806ea23f06548678af4bf7,ea221cb805056488b95caf6b4bd078c1e6a2b312..ea5a287f3e4642b5f7022be18e27215e491752de
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -148,10 -44,9 +148,13 @@@ Core and Builtin
  Library
  -------
  
+ - Issue #18101: Tcl.split() now process strings nested in a tuple as it
+   do with byte strings.
+ 
 +- Issue #18116: getpass was always getting an error when testing /dev/tty,
 +  and thus was always falling back to stdin.  It also leaked an open file
 +  when it did so.  Both of these issues are now fixed.
 +
  - Issue #17198: Fix a NameError in the dbm module.  Patch by Valentina
    Mukhamedzhanova.
  

diff --cc Modules/_tkinter.c
Simple merge