Python脚本在几分钟后停止

Python script stops after a few minutes

我正在构建一个python脚本，每隔5-10秒检查一个亚马逊产品的价格。问题是，脚本几分钟后停止"工作"。控制台没有输出，但在我的进程中显示为"正在运行"。

我使用请求会话进行HTTP请求，并使用时间显示请求时间。

我的代码如下：

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target_price = raw_input('Enter target price: ')
url = raw_input('Enter the product url: ')
while True:
delay=randint(5,10)

print datetime.datetime.strftime(datetime.datetime.now(), '%Y-%m-%d %H:%M:%S')+': '+'Sleeping for ' + str(delay) + ' seconds'
time.sleep(delay)
try:
with requests.Session() as s:
page = s.get(url,headers=headers,proxies=proxyDict,verify=False,timeout=5)
tree = html.fromstring(page.content)
price = tree.xpath('//div[@class="a-row a-spacing-mini olpOffer"]/div[@class="a-column a-span2 olpPriceColumn"]/span[@class="a-size-large a-color-price olpOfferPrice a-text-bold"]/text()')[0]
new_price = re.findall("[-+]?\d+[\.]?\d+[eE]?[-+]?\d*", price)[0]
old_price = new_price
print new_price
if float(new_price)<float(target_price):
print 'Lower price found!'
mydriver = webdriver.Chrome()
send_simple_message()
login(mydriver)
print 'Old Price: ' + old_price
print 'New Price: ' + new_price
else:
print 'Trying again'
except Exception as e:
print e
print 'Error!'

编辑：我删除了wait()函数并使用time.sleep。

edit2：当我使用键盘中断来停止脚本时，这里是输出

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Traceback (most recent call last):
File"checker.py", line 85, in <module>
page = s.get(url,headers=headers,proxies=proxyDict,verify=False,timeout=5)
File"C:\Python27\lib\site-packages
equests\sessions.py", line 488, in get
return self.request('GET', url, **kwargs)
File"C:\Python27\lib\site-packages
equests\sessions.py", line 475, in request
resp = self.send(prep, **send_kwargs)
File"C:\Python27\lib\site-packages
equests\sessions.py", line 596, in send
r = adapter.send(request, **kwargs)
File"C:\Python27\lib\site-packages
equests\adapters.py", line 423, in send
timeout=timeout
File"C:\Python27\lib\site-packages
equests\packages\urllib3\connectionpool.py", line 589, in urlopen
self._prepare_proxy(conn)
File"C:\Python27\lib\site-packages
equests\packages\urllib3\connectionpool.py", line 797, in _prepare_proxy
conn.connect()
File"C:\Python27\lib\site-packages
equests\packages\urllib3\connection.py",
line 267, in connect
self._tunnel()
File"C:\Python27\lib\httplib.py", line 729, in _tunnel
line = response.fp.readline()
KeyboardInterrupt

是否请求正在进入无限循环？