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  1. from collections import Counter
  2.  
  3. lista = [4, 2, 1, 6, 1, 4, 4]
  4. contador = Counter(lista)
  5.  
  6. repetidos = [
  7. item for item, quantidade in contador.items()
  8. if quantidade > 1
  9. ]
  10.  
  11. quantidade_repetidos = len(repetidos)
  12.  
  13. print(f'Há {quantidade_repetidos} números repetidos na lista')
Compilation error #stdin compilation error #stdout 0s 0KB
stdin
Standard input is empty
compilation info
Traceback (most recent call last):
  File "/usr/lib/python3.5/py_compile.py", line 125, in compile
    _optimize=optimize)
  File "<frozen importlib._bootstrap_external>", line 735, in source_to_code
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
  File "./prog.py", line 13
    print(f'Há {quantidade_repetidos} números repetidos na lista')
                                                                ^
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/python3.5/py_compile.py", line 129, in compile
    raise py_exc
py_compile.PyCompileError:   File "./prog.py", line 13
    print(f'Há {quantidade_repetidos} números repetidos na lista')
                                                                ^
SyntaxError: invalid syntax

stdout
Standard output is empty