def metric(text): def decorator(func): @functools.wraps(func) def wrapper(*args, **kw): if isinstance(text, str): print('Begin %s %s():' % (text, func.__name__)) else: print('Begin call %s():' % func.__name__) back = func(*args, **kw) print('End call') return back return wrapper if callable(text): return decorator(text) else: return decorator
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