Traceback (most recent call last):
File "/usr/lib/python3.4/py_compile.py", line 124, in compile
_optimize=optimize)
File "<frozen importlib._bootstrap>", line 1532, in source_to_code
File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
File "./prog.py", line 1
f=lambda s:[a*s.count(a)for a in{*s}-{' '}]
^
SyntaxError: invalid syntax
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python3.4/py_compile.py", line 128, in compile
raise py_exc
py_compile.PyCompileError: File "./prog.py", line 1
f=lambda s:[a*s.count(a)for a in{*s}-{' '}]
^
SyntaxError: invalid syntax