for / else not working in interactive mode

[Skaperen]

that doesn't work, either:

Output:
Python 3.6.8 (default, Jan 14 2019, 11:02:34) 
[GCC 8.0.1 20180414 (experimental) [trunk revision 259383]] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> a=[1,2,3,4,9,6]
>>> b=[0,5,10]
>>> for x in b:
...     if x in a:
...         print('foo')
...         break
... 
>>> else:
  File "<stdin>", line 1
    else:
       ^
SyntaxError: invalid syntax
>>>