Python：每分钟只需要请求20次(Python: Need to request only 20 times per minute)

我制作了一个使用api请求某些数据的python代码，但api只允许每分钟发出20个请求。我正在使用urllib来请求数据。此外，我正在使用for循环，因为数据位于文件中：

for i in hashfile: hash = i url1 = "https://hashes.org/api.php?act=REQUEST&key="+key+"&hash="+hash print(url1) response = urllib.request.urlopen(url2).read() strr = str(response) if "plain" in strr: parsed_json = json.loads(response.decode("UTF-8")) print(parsed_json['739c5b1cd5681e668f689aa66bcc254c']['plain']) writehash = i+parsed_json hashfile.write(writehash + "\n") elif "INVALID HASH" in strr: print("You have entered an invalid hash.") elif "NOT FOUND" in strr: print("The hash is not found.") elif "LIMIT REACHED" in strr: print("You have reached the max requests per minute, please try again in one minute.") elif "INVALID KEY!" in strr: print("You have entered a wrong key!") else: print("You have entered a wrong input!")

有没有办法让它每分钟只做20个请求？或者如果这是不可能的，我可以让它在20次尝试后超时？（顺便说一句，它只是代码的一部分）

I have made a python code that uses a api to request some data, but the api only allows for 20 requests per minute. I am using urllib to request the data. Also I am using a for loop because the data is located in a file:

for i in hashfile: hash = i url1 = "https://hashes.org/api.php?act=REQUEST&key="+key+"&hash="+hash print(url1) response = urllib.request.urlopen(url2).read() strr = str(response) if "plain" in strr: parsed_json = json.loads(response.decode("UTF-8")) print(parsed_json['739c5b1cd5681e668f689aa66bcc254c']['plain']) writehash = i+parsed_json hashfile.write(writehash + "\n") elif "INVALID HASH" in strr: print("You have entered an invalid hash.") elif "NOT FOUND" in strr: print("The hash is not found.") elif "LIMIT REACHED" in strr: print("You have reached the max requests per minute, please try again in one minute.") elif "INVALID KEY!" in strr: print("You have entered a wrong key!") else: print("You have entered a wrong input!")

Is there a way to make it just do 20 requests per minute? or if that isn't possible can I make it timeout after 20 tries? (btw, it's just part of the code)