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"""
A short module for implementing `Sleeper`. See its documentation.
"""
import time
import sys
#def log(text): print(text); sys.stdout.flush()
class Sleeper(object):
"""
A smarter way to use `time.sleep()`, implemented as a context manager.
Use it like this:
with smartsleep.Sleeper(7):
do_stuff()
The Sleeper instance will ensure that at least 7 second have passed before
control flows to the next lines of code.
"""
def __init__(self,interval):
self.interval=interval
def __enter__(self,*args,**kwargs):
self.starting_time=time.time()
def __exit__(self,*args,**kwargs):
#global log
time_now=time.time()
interval_gone=time_now-self.starting_time
if interval_gone>=self.interval:
#log("didn't sleep")
return
else:
#log("slept")
time.sleep(self.interval-interval_gone)
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