Idle Python issue

[jak]

Hello everybody,
I encounter a problem using Idle Python in Windows when I use utf8 
characters longer than 2 bytes such as the character representing the 
smile emoticon:
:-)
that is this:
😊
Try to write this in Idle:
"😊".encode('utf8')
b'\xf0\x9f\x98\x8a'
now try to write this:
"".encode('utf8')
now position the cursor between the double quotes and paste the smile 
character and try to add some text to the string (eg: 'the smile').
You may notice problems with editing.
Is there any way to prevent this from happening? It is an annoying problem.
Thanks for your attention.

cheers