retVal = None
retries = 5
success = False
while retries > 0 and success == False:
try:
retVal = graph.put_event(**args)
success = True
except:
retries = retries-1
logging.info('Facebook put_event timed out. Retrying.')
return success, retVal
在上面的代码中,我如何将整个事情包装成一个函数,并使任何命令(在这个例子中,'graph.put_event(**args)')都可以作为参数传递给在函数内执行?
最佳答案
直接回答您的问题:
def foo(func, *args, **kwargs):
retVal = None
retries = 5
success = False
while retries > 0 and success == False:
try:
retVal = func(*args, **kwargs)
success = True
except:
retries = retries-1
logging.info('Facebook put_event timed out. Retrying.')
return success, retVal
然后可以这样调用:
s, r = foo(graph.put_event, arg1, arg2, kwarg1="hello", kwarg2="world")
顺便说一句,鉴于上述任务,我会按照以下方式编写:
class CustomException(Exception): pass
# Note: untested code...
def foo(func, *args, **kwargs):
retries = 5
while retries > 0:
try:
return func(*args, **kwargs)
except:
retries -= 1
# maybe sleep a short while
raise CustomException
# to be used as such
try:
rv = foo(graph.put_event, arg1, arg2, kwarg1="hello", kwarg2="world")
except CustomException:
# handle failure
关于Python:将执行语句作为函数参数传递,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6371041/