#designpattern #python #decorator
import time
DEFAULT_FMT = '[{elapsed:0.8f}s] {name}({args}) -> {result}'
def clock(fmt=DEFAULT_FMT):
def decorate(func):
def clocked(*_args):
t0 = time.perf_counter()
_result = func(*_args)
elapsed = time.perf_counter() - t0
name = func.__name__
args = ', '.join(repr(arg) for arg in _args)
result = repr(_result)
print(fmt.format(**locals()))
return _result
return clocked
return decorate
if __name__ == '__main__':
@clock()
def snooze(seconds):
time.sleep(seconds
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**locals
means that get all variables locals and transform it to the following line:-
elapsed=elapsed, name=name, args=args, result=result
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References
- Ramalho, 2022, p322-323