I'm also experiencing this on Windows 8 and 10. In the bare example below, I can Ctrl-C to exit the loop. When I press Enter again, the exception at the bottom appears.

try:
  while True:
    input("? ")
except:
  pass




>>>
>>> try:
...     while True:
...             input("? ")
... except:
...     pass
...
? asdf
'asdf'
? qqwer
'qqwer'
? >>>
  File "<stdin>", line 0

    ^
SyntaxError: decoding with 'cp437' codec failed (KeyboardInterrupt: )
>>>