前提・実現したいこと
「独習Python入門」をみながら練習しています。
Webスクレイピングのページで、教科書通りのコードを入力しているのですが、エラーが表示されます。
発生している問題・エラーメッセージ
長いですが・・・
Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 1317, in do_open encode_chunked=req.has_header('Transfer-encoding')) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 1229, in request self._send_request(method, url, body, headers, encode_chunked) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 1275, in _send_request self.endheaders(body, encode_chunked=encode_chunked) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 1224, in endheaders self._send_output(message_body, encode_chunked=encode_chunked) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 1016, in _send_output self.send(msg) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 956, in send self.connect() File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py", line 1392, in connect server_hostname=server_hostname) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 412, in wrap_socket session=session File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 853, in _create self.do_handshake() File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 1117, in do_handshake self._sslobj.do_handshake() ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1051) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "do_scraping.py", line 5, in <module> req = urllib.request.urlopen('http://quality-start.in/company/') File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 222, in urlopen return opener.open(url, data, timeout) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 531, in open response = meth(req, response) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 641, in http_response 'http', request, response, code, msg, hdrs) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 563, in error result = self._call_chain(*args) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 503, in _call_chain result = func(*args) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 755, in http_error_302 return self.parent.open(new, timeout=req.timeout) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 525, in open response = self._open(req, data) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 543, in _open '_open', req) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 503, in _call_chain result = func(*args) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 1360, in https_open context=self._context, check_hostname=self._check_hostname) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 1319, in do_open raise URLError(err) urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1051)>
該当のソースコード
Python3
1#encoding: utf-8 2 3import urllib.request 4from bs4 import BeautifulSoup 5req = urllib.request.urlopen('http://quality-start.in/company/') 6soup = BeautifulSoup(req, "html.parser") 7print(soup.find('h1').text) 8
試したこと
①何度もコードを見直しましたが、まさしく教科書通りでした。
(エラーメッセージ的に、単なる誤入力ではない?)
②[SSL: CERTIFICATE_VERIFY_FAILED] というエラーメッセージで検索して、
https://qiita.com/orangain/items/0a641d980019fd7e0c52
を参考に、certifiモジュールをインストールしました。
しかし、エラーのままです・・・
補足情報(FW/ツールのバージョンなど)
MacOS
pip9.0.1
質問者がプログラミング初心者のため、基本的なミスかもしれませんが、お助けください!
回答2件
あなたの回答
tips
プレビュー