pythonでtwitterのツイート機能を使う方法

Question

ツイッターでツイートするプログラムをpythonで動かしてみたいと考えています。

こちらのサイトhttp://qiita.com/konojunya/items/59a68d35e44db8b87186
にあるプログラムをRaspberry Pi Model 2で動かそうとしています。

#全て自分のTwitter APIのキーを使用
#settings.py
CONSUMER_KEY = "XXXXXXXXXXXXX"
CONSUMER_SECRET = "XXXXXXXXXXXXXXXXXXX"
ACCESS_TOKEN = "XXXXXXXXXXXXX"
ACCESS_TOKEN_SECRET = "XXXXXXXXXXXXXXXXXX"

#tweet.py
#coding: UTF-8
from requests_oauthlib import OAuth1Session
import json
import settings

twitter = OAuth1Session(settings.CONSUMER_KEY, settings.CONSUMER_SECRET, settings.ACCESS_TOKEN, settings.ACCESS_TOKEN_SECRET)

params = {"status": "Hello World!"}
req = twitter.post("https://api.twitter.com/1.1/statuses/update.json",params = params)

しかし、実行したらこのような長いエラーが出てしまい、ツイートができません

$ python3 tweet.py 
Traceback (most recent call last):
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connection.py", line 141, in _new_conn
    (self.host, self.port), self.timeout, **extra_kw)
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/util/connection.py", line 60, in create_connection
    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
  File "/usr/lib/python3.4/socket.py", line 530, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -2] Name or service not known

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connectionpool.py", line 345, in _make_request
    self._validate_conn(conn)
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connectionpool.py", line 844, in _validate_conn
    conn.connect()
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connection.py", line 284, in connect
    conn = self._new_conn()
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connection.py", line 150, in _new_conn
    self, "Failed to establish a new connection: %s" % e)
requests.packages.urllib3.exceptions.NewConnectionError: <requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0xb63cd230>: Failed to establish a new connection: [Errno -2] Name or service not known

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.4/dist-packages/requests/adapters.py", line 423, in send
    timeout=timeout
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connectionpool.py", line 649, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/util/retry.py", line 376, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
requests.packages.urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='api.twitter.com', port=443): Max retries exceeded with url: /1.1/statuses/update.json?status=%E3%83%A9%E3%82%BA%E3%83%91%E3%82%A4%E3%81%8B%E3%82%89%E6%8A%95%E7%A8%BF%E3%83%86%E3%82%B9%E3%83%88 (Caused by NewConnectionError('<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0xb63cd230>: Failed to establish a new connection: [Errno -2] Name or service not known',))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "tweet.py", line 9, in <module>
    req = twitter.post("https://api.twitter.com/1.1/statuses/update.json",params = params)
  File "/usr/local/lib/python3.4/dist-packages/requests/sessions.py", line 535, in post
    return self.request('POST', url, data=data, json=json, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/requests/sessions.py", line 488, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python3.4/dist-packages/requests/sessions.py", line 609, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/requests/adapters.py", line 487, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='api.twitter.com', port=443): Max retries exceeded with url: /1.1/statuses/update.json?status=%E3%83%A9%E3%82%BA%E3%83%91%E3%82%A4%E3%81%8B%E3%82%89%E6%8A%95%E7%A8%BF%E3%83%86%E3%82%B9%E3%83%88 (Caused by NewConnectionError('<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0xb63cd230>: Failed to establish a new connection: [Errno -2] Name or service not known',))

どうしたらエラーがなく、ツイートできるようになりますか？

ここでpythonはインストール済みであり、Twitter APIのSECRET KEYは取得済みです。

Answer 1

socket.gaierror: [Errno -2] Name or service not known

上記のエラー文言からネットワークの問題のように見受けます。RasPiからapi.twitter.comへPingができるか、443へtelnet等で接続できるかを確認すると良いと思います。名前解決でコケている気がします。

Comments

[ddkk]

ありがとうございます
固定IPアドレスの設定でDNSサーバーのIPアドレスの記入漏れがあり、訂正したら動くようになりました。

Answer 2

python2.7環境、ほぼ同じコードで問題なく動作しました。

max retries exceeded twitterエラーにて検索しましたが
CONSUMER_KEY～ACCESS_TOKEN_SECRETのいずれかに誤りがあるか、あるいは単純に時間を置いて試してみる
などの情報はあがっていますが、これといって特定できる原因はないようです。