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# clockdeco_param.py

"""

>>> snooze(.1) # doctest: +ELLIPSIS

[0.101...s] snooze(0.1) -> None

>>> clock('{name}: {elapsed}')(time.sleep)(.2) # doctest: +ELLIPSIS

sleep: 0.20...

>>> clock('{name}({args}) dt={elapsed:0.3f}s')(time.sleep)(.2)

sleep(0.2) dt=0.201s

"""

# BEGIN CLOCKDECO_PARAM

import time

DEFAULT_FMT = '[{elapsed:0.8f}s] {name}({args}) -> {result}'

def clock(fmt=DEFAULT_FMT): # <1>

def decorate(func): # <2>

def clocked(*_args): # <3>

t0 = time.time()

_result = func(*_args) # <4>

elapsed = time.time() - t0

name = func.__name__

args = ', '.join(repr(arg) for arg in _args) # <5>

result = repr(_result) # <6>

print(fmt.format(**locals())) # <7>

return _result # <8>

return clocked # <9>

return decorate # <10>

if __name__ == '__main__':

@clock() # <11>

def snooze(seconds):

time.sleep(seconds)

for i in range(3):

snooze(.123)

# END CLOCKDECO_PARAM