Python tweepy writing to sqlite3 db

问题

My script below (taken from various resources online) isn't writing to the database. I do not get any errors, and if I comment out the database lines then it outputs to the console without issue.

The database exists, it has 2 fields, its writeable by me.... Any ideas please?

Updated code below

#!/usr/bin/env python

import sys
import tweepy
from textwrap import TextWrapper
import sqlite3

CONSUMER_KEY = ''
CONSUMER_SECRET = ''
ACCESS_KEY = ''
ACCESS_SECRET = ''


auth1 = tweepy.auth.OAuthHandler(CONSUMER_KEY,CONSUMER_SECRET)
auth1.set_access_token(ACCESS_KEY,ACCESS_SECRET)
api = tweepy.API(auth1)
conn = sqlite3.connect('twitter.db')
cur = conn.cursor()

class StreamListener(tweepy.StreamListener):
    status_wrapper = TextWrapper(width=60, initial_indent='    ', subsequent_indent='    ')



    def on_status(self, status):
        try:
            cur.execute('INSERT INTO tweets (text, date) VALUES (?, ?)' ,(status.text,))
            print self.status_wrapper.fill(status.text)
            print '\n %s  %s  via %s\n' % (status.author.screen_name, status.created_at, status.source)
            conn.commit()   
        except Exception, e:
            print >> sys.stderr, 'Encountered Exception:', e

    def on_error(self, status_code):
            print >> sys.stderr, 'Encountered error with status code:', status_code
            return True # Don't kill the stream

    def on_timeout(self):
            print >> sys.stderr, 'Timeout...'
            return True # Don't kill the stream


streamer = tweepy.Stream(auth1, StreamListener(), timeout=None)
setTerms = ['news','hello']
streamer.filter(setTerms)

回答1:

First, fix your indentation. You are not getting any errors, because you're explicitly silencing them! with

except Exception, e:
    # Catch any unicode errors while printing to console
    # and just ignore them to avoid breaking application.
    pass

This catches any exception that occurs in the try: except: block. Reading the Python Tutorial is a good start to learn more about exceptions.

回答2:

Do you want to do this:

cur = conn.cursor()
cursor.execute('INSERT INTO tweets (text, date) VALUES (?, NOW())' ,(status.text))

Or this:

cur = conn.cursor()
cur.execute('INSERT INTO tweets (text, date) VALUES (?, NOW())' ,(status.text))

In the First case cursor is undeclared.

Also, as lqc pointed out, you silence all errors. Don't catch any exceptions to see what's going on or change it to something more specific (like UnicodeError).

来源：https://stackoverflow.com/questions/11432187/python-tweepy-writing-to-sqlite3-db

标签

python

tweepy