TweepError: Failed to send request:

Question

環境
Windows10
Python3.8

TwitterAPIの勉強をしております。
初学者です。

下記のコードを書きました。
Twitterのタイムラインの情報を取得するのですが、エラーが発生します。

consumer_key = "" ,
consumer_secret = ""
access_token = ""
access_token_secret = ""

!pip install tweepy

import tweepy

auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
auth.set_access_token(access_token, access_token_secret)

api = tweepy.API(auth)

public_tweets = api.home_timeline()
public_tweets

Twitterのタイムラインの情報を取得するのですが、エラーが発生します。

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
C:\ProgramData\Anaconda3\lib\site-packages\tweepy\binder.py in execute(self)
    183                 try:
--> 184                     resp = self.session.request(self.method,
    185                                                 full_url,

C:\ProgramData\Anaconda3\lib\site-packages\requests\sessions.py in request(self, method, url, params, data, headers, cookies, files, auth, timeout, allow_redirects, proxies, hooks, stream, verify, cert, json)
    527         )
--> 528         prep = self.prepare_request(req)
    529 

C:\ProgramData\Anaconda3\lib\site-packages\requests\sessions.py in prepare_request(self, request)
    455         p = PreparedRequest()
--> 456         p.prepare(
    457             method=request.method.upper(),

C:\ProgramData\Anaconda3\lib\site-packages\requests\models.py in prepare(self, method, url, headers, files, data, params, auth, cookies, hooks, json)
    319         self.prepare_body(data, files, json)
--> 320         self.prepare_auth(auth, url)
    321 

C:\ProgramData\Anaconda3\lib\site-packages\requests\models.py in prepare_auth(self, auth, url)
    550             # Allow auth to make its changes.
--> 551             r = auth(self)
    552 

C:\ProgramData\Anaconda3\lib\site-packages\requests_oauthlib\oauth1_auth.py in __call__(self, r)
    107             # Omit body data in the signing of non form-encoded requests
--> 108             r.url, headers, _ = self.client.sign(
    109                 unicode(r.url), unicode(r.method), None, r.headers

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\__init__.py in sign(self, uri, http_method, body, headers, realm)
    350         request.oauth_params.append(
--> 351             ('oauth_signature', self.get_oauth_signature(request)))
    352 

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\__init__.py in get_oauth_signature(self, request)
    164 
--> 165         uri, headers, body = self._render(request)
    166 

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\__init__.py in _render(self, request, formencode, realm)
    246         if self.signature_type == SIGNATURE_TYPE_AUTH_HEADER:
--> 247             headers = parameters.prepare_headers(
    248                 request.oauth_params, request.headers, realm=realm)

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\utils.py in wrapper(params, *args, **kwargs)
     24         params = filter_oauth_params(params)
---> 25         return target(params, *args, **kwargs)
     26 

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\parameters.py in prepare_headers(oauth_params, headers, realm)
     52         escaped_name = utils.escape(oauth_parameter_name)
---> 53         escaped_value = utils.escape(value)
     54 

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\utils.py in escape(u)
     48     if not isinstance(u, str):
---> 49         raise ValueError('Only unicode objects are escapable. ' +
     50                          'Got {!r} of type {}.'.format(u, type(u)))

ValueError: Only unicode objects are escapable. Got <generator object to_unicode.<locals>.<genexpr> at 0x000001B9CE23E3C0> of type <class 'generator'>.

During handling of the above exception, another exception occurred:

TweepError                                Traceback (most recent call last)
<ipython-input-8-ad72c34536d3> in <module>
----> 1 public_tweets = api.home_timeline()
      2 public_tweets

C:\ProgramData\Anaconda3\lib\site-packages\tweepy\binder.py in _call(*args, **kwargs)
    251                 return method
    252             else:
--> 253                 return method.execute()
    254         finally:
    255             method.session.close()

C:\ProgramData\Anaconda3\lib\site-packages\tweepy\binder.py in execute(self)
    190                                                 proxies=self.api.proxy)
    191                 except Exception as e:
--> 192                     six.reraise(TweepError, TweepError('Failed to send request: %s' % e), sys.exc_info()[2])
    193 
    194                 rem_calls = resp.headers.get('x-rate-limit-remaining')

C:\ProgramData\Anaconda3\lib\site-packages\six.py in reraise(tp, value, tb)
    700                 value = tp()
    701             if value.__traceback__ is not tb:
--> 702                 raise value.with_traceback(tb)
    703             raise value
    704         finally:

C:\ProgramData\Anaconda3\lib\site-packages\tweepy\binder.py in execute(self)
    182                 # Execute request
    183                 try:
--> 184                     resp = self.session.request(self.method,
    185                                                 full_url,
    186                                                 data=self.post_data,

C:\ProgramData\Anaconda3\lib\site-packages\requests\sessions.py in request(self, method, url, params, data, headers, cookies, files, auth, timeout, allow_redirects, proxies, hooks, stream, verify, cert, json)
    526             hooks=hooks,
    527         )
--> 528         prep = self.prepare_request(req)
    529 
    530         proxies = proxies or {}

C:\ProgramData\Anaconda3\lib\site-packages\requests\sessions.py in prepare_request(self, request)
    454 
    455         p = PreparedRequest()
--> 456         p.prepare(
    457             method=request.method.upper(),
    458             url=request.url,

C:\ProgramData\Anaconda3\lib\site-packages\requests\models.py in prepare(self, method, url, headers, files, data, params, auth, cookies, hooks, json)
    318         self.prepare_cookies(cookies)
    319         self.prepare_body(data, files, json)
--> 320         self.prepare_auth(auth, url)
    321 
    322         # Note that prepare_auth must be last to enable authentication schemes

C:\ProgramData\Anaconda3\lib\site-packages\requests\models.py in prepare_auth(self, auth, url)
    549 
    550             # Allow auth to make its changes.
--> 551             r = auth(self)
    552 
    553             # Update self to reflect the auth changes.

C:\ProgramData\Anaconda3\lib\site-packages\requests_oauthlib\oauth1_auth.py in __call__(self, r)
    106         else:
    107             # Omit body data in the signing of non form-encoded requests
--> 108             r.url, headers, _ = self.client.sign(
    109                 unicode(r.url), unicode(r.method), None, r.headers
    110             )

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\__init__.py in sign(self, uri, http_method, body, headers, realm)
    349         # generate the signature
    350         request.oauth_params.append(
--> 351             ('oauth_signature', self.get_oauth_signature(request)))
    352 
    353         # render the signed request and return it

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\__init__.py in get_oauth_signature(self, request)
    163                                             self.resource_owner_secret)
    164 
--> 165         uri, headers, body = self._render(request)
    166 
    167         collected_params = signature.collect_parameters(

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\__init__.py in _render(self, request, formencode, realm)
    245         # I'm not sure how I feel about it.
    246         if self.signature_type == SIGNATURE_TYPE_AUTH_HEADER:
--> 247             headers = parameters.prepare_headers(
    248                 request.oauth_params, request.headers, realm=realm)
    249         elif self.signature_type == SIGNATURE_TYPE_BODY and request.decoded_body is not None:

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\utils.py in wrapper(params, *args, **kwargs)
     23     def wrapper(params, *args, **kwargs):
     24         params = filter_oauth_params(params)
---> 25         return target(params, *args, **kwargs)
     26 
     27     wrapper.__doc__ = target.__doc__

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\parameters.py in prepare_headers(oauth_params, headers, realm)
     51         # .. _`Section 3.6`: https://tools.ietf.org/html/rfc5849#section-3.6
     52         escaped_name = utils.escape(oauth_parameter_name)
---> 53         escaped_value = utils.escape(value)
     54 
     55         # 2.  Each parameter's name is immediately followed by an "=" character

C:\ProgramData\Anaconda3\lib\site-packages\oauthlib\oauth1\rfc5849\utils.py in escape(u)
     47     """
     48     if not isinstance(u, str):
---> 49         raise ValueError('Only unicode objects are escapable. ' +
     50                          'Got {!r} of type {}.'.format(u, type(u)))
     51     # Letters, digits, and the characters '_.-' are already treated as safe

TweepError: Failed to send request: Only unicode objects are escapable. Got <generator object to_unicode.<locals>.<genexpr> at 0x000001B9CE23E3C0> of type <class 'generator'>.

検索しても似たようなエラーがなくて困っています。

Answer 1

consumer_key = "" ,

は

consumer_key = ""

と書きたかったのにうっかり,が入ってしまったのだろうな、と思いました。
（これが原因でエラーが再現するかは分かりませんが）

---

,はタプルを生成する機能があります。

>>> a = 1,

>>> a
(1,)


>>> type(a)
<class 'tuple'>

Comments

[saito5940]

ありがとうございます。
何で、そのカンマを見落として苦しまなければならない・・。
助かりました。