Python limits the number of function calls-Python Tutorial-php.cn

Python limits the number of function calls

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Release： 2018-04-21 14:33:23

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The following is an example of how to limit the number of function calls in Python. It has a good reference value and I hope it will be helpful to everyone. Let’s take a look together

The following code limits the number of calls to a certain function in a certain period of time.

Source of inspiration: python decorator-method to limit the number of function calls (call once every 10 seconds ) Welcome to visit

The original blog specified caching. I changed it to limiting the number of visits here, which is the same but the same result

#newtest.py
#!/usr/bin/env python
#-*- coding:utf-8 -*-
import time
def stat_called_time(func):
 cache={}
 limit_times=[10]
 def _called_time(*args,**kwargs):
  key=func.__name__
  if key in cache.keys():
   [call_times,updatetime]=cache[key]
   if time.time()-updatetime <60:
    cache[key][0]+=1
   else:
    cache[key]=[1,time.time()]
  else:
   call_times=1
   cache[key]=[call_times,time.time()]
  print(&#39;调用次数: %s&#39; % cache[key][0])
  print(&#39;限制次数: %s&#39; % limit_times[0])
  if cache[key][0] <= limit_times[0]:
   res=func(*args,**kwargs)
   cache[key][1] = time.time()
   return res
  else:
   print("超过调用次数了")
   return None
 return _called_time
@stat_called_time
def foo():
 print("I&#39;m foo")
if __name__==&#39;__main__&#39;:
 for i in range(10):
  foo()

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#test.py
from newtest import foo
import time
for i in range(30):
 foo()
print(&#39;*&#39;*20)
foo()
foo()
print(&#39;*&#39;*20)
for i in range(60):
 print(i)
 time.sleep(1)
for i in range(11):
 foo()

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