出现错误时如何重新启动 tweepy 脚本? [英] How to restart tweepy script in case of error?
问题描述
我有一个 python 脚本,可以将与跟踪关键字相关的推文连续存储到文件中.但是,由于下面附加的错误,脚本往往会反复崩溃.如何编辑脚本以使其自动重新启动?我已经看到了许多解决方案,包括这个(异常后重新启动程序)但我我不确定如何在我的脚本中实现它.
I have a python script that continuously stores tweets related to tracked keywords to a file. However, the script tends to crash repeatedly due to an error appended below. How do I edit the script so that it automatically restarts? I've seen numerous solutions including this (Restarting a program after exception) but I'm not sure how to implement it in my script.
import sys
import tweepy
import json
import os
consumer_key=""
consumer_secret=""
access_key = ""
access_secret = ""
auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
auth.set_access_token(access_key, access_secret)
api = tweepy.API(auth)
# directory that you want to save the json file
os.chdir("C:\Users\json_files")
# name of json file you want to create/open and append json to
save_file = open("12may.json", 'a')
class CustomStreamListener(tweepy.StreamListener):
def __init__(self, api):
self.api = api
super(tweepy.StreamListener, self).__init__()
# self.list_of_tweets = []
def on_data(self, tweet):
print tweet
save_file.write(str(tweet))
def on_error(self, status_code):
print >> sys.stderr, 'Encountered error with status code:', status_code
return True # Don't kill the stream
print "Stream restarted"
def on_timeout(self):
print >> sys.stderr, 'Timeout...'
return True # Don't kill the stream
print "Stream restarted"
sapi = tweepy.streaming.Stream(auth, CustomStreamListener(api))
sapi.filter(track=["test"])
==============================================================================
===========================================================================
Traceback (most recent call last):
File "C:\Users\tweets_to_json.py", line 41, in <module>
sapi.filter(track=["test"])
File "C:\Python27\lib\site-packages\tweepy-2.3-py2.7.egg\tweepy\streaming.py", line 316, in filter
self._start(async)
File "C:\Python27\lib\site-packages\tweepy-2.3-py2.7.egg\tweepy\streaming.py", line 235, in _start
self._run()
File "C:\Python27\lib\site-packages\tweepy-2.3-py2.7.egg\tweepy\streaming.py", line 165, in _run
self._read_loop(resp)
File "C:\Python27\lib\site-packages\tweepy-2.3-py2.7.egg\tweepy\streaming.py", line 206, in _read_loop
for c in resp.iter_content():
File "C:\Python27\lib\site-packages\requests-1.2.3-py2.7.egg\requests\models.py", line 541, in generate
chunk = self.raw.read(chunk_size, decode_content=True)
File "C:\Python27\lib\site-packages\requests-1.2.3-py2.7.egg\requests\packages\urllib3\response.py", line 171, in read
data = self._fp.read(amt)
File "C:\Python27\lib\httplib.py", line 543, in read
return self._read_chunked(amt)
File "C:\Python27\lib\httplib.py", line 603, in _read_chunked
value.append(self._safe_read(amt))
File "C:\Python27\lib\httplib.py", line 660, in _safe_read
raise IncompleteRead(''.join(s), amt)
IncompleteRead: IncompleteRead(0 bytes read, 1 more expected)
推荐答案
通过为流编写新函数,弄清楚如何合并 while/try 循环:
Figured out how to incorporate the while/try loop by writing a new function for the stream:
def start_stream():
while True:
try:
sapi = tweepy.streaming.Stream(auth, CustomStreamListener(api))
sapi.filter(track=["Samsung", "s4", "s5", "note" "3", "HTC", "Sony", "Xperia", "Blackberry", "q5", "q10", "z10", "Nokia", "Lumia", "Nexus", "LG", "Huawei", "Motorola"])
except:
continue
start_stream()
我通过使用 CMD + C 手动中断程序来测试自动重启.不过,很高兴听到测试此类功能的更好方法.
I tested the auto restart by manually interrupting the program with CMD + C. Nonetheless, happy to hear of better ways to test such functionality.
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