解决pythonTimer报错：Exception in thread Thread-1:Traceback most recent call last

Recently used the timer function of python, the specific usage is:

Timer(interval, function, args=[], kwargs={
    
    }) 

interval: the specified time 　　
function: the method to be executed 　　
args/kwargs: the parameters of the method

Then I made an application like this:

t=Timer(timer_interval,clearTwoBlock())#定时函数

Error:

Exception in thread Thread-1:
Traceback (most recent call last):
File “D:\Python37\lib\threading.py”, line 917, in _bootstrap_inner
self.run()
File “D:\Python37\lib\threading.py”, line 1158, in run
self.function(*self.args, **self.kwargs)
TypeError: ‘NoneType’ object is not callable

The reasons for this problem are:

In the Timer parameter, only write the function name in function, do not add parentheses, and correct it to:

t=Timer(timer_interval,clearTwoBlock)#定时函数