我有一个 Python 脚本可以记录我房间的温度并使用请求库发送数据。有时我会失去 wifi 信号,脚本会在请求出错后完全停止。
import sys
import time
import Adafruit_DHT
import requests
raspid = 1
sensor = 11
pin = 25
while True:
humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
if humidity is not None and temperature is not None:
datos = {'temperatura': 'temperature', 'humedad': 'humidity', 'raspid': 'raspid'}
r = requests.post("http://httpbin.org/post", data=datos)
print(r.text)
else:
print ('Error de lectura!')
time.sleep(15)
wifi断开时出错
Traceback (most recent call last):
File "/home/pi/Desktop/dht11 request post.py", line 19, in <module>
r = requests.post("http://mehr.cl/link.php", data=datos)
File "/usr/lib/python2.7/dist-packages/requests/api.py", line 94, in post
return request('post', url, data=data, json=json, **kwargs)
File "/usr/lib/python2.7/dist-packages/requests/api.py", line 49, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 457, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 569, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python2.7/dist-packages/requests/adapters.py", line 407, in send
raise ConnectionError(err, request=request)
ConnectionError: ('Connection aborted.', error(101, 'Network is unreachable'))
>>>
有没有办法忽略错误并重试?
最佳答案
是的,有。它正是在尝试并捕获引发的任何错误。
基本上它是这样工作的:
try:
# Some action that could raise an error
except:
# What to do when an error occurs
如需更深入的解释,请查看文档:Errors and Exceptions .
有几个内置的异常,其中,ConnectionError
。如果您知道您期望的确切异常,则必须将其添加到 except
子句中:
try:
# Actions that might raise a ConnectionError
except ConnectionError:
# Process the error, for instance, try again
关于python - 即使在发生错误后继续 python 脚本,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43925763/