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def my_decorator(fun):
    def wrapper(*args):
        print "Before Invocation"
        fun(*args)
        print "After Invocation"
    return wrapper
 
@my_decorator
def hello_world(x):
    print "Hello, World"
    print x
 
hello_world(10)

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 3
    print "Before Invocation"
                            ^
SyntaxError: Missing parentheses in call to 'print'

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 3
    print "Before Invocation"
                            ^
SyntaxError: Missing parentheses in call to 'print'

Standard output is empty