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mhnakhuda
5 years agoNew member | Level 2
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)
Hi everyone,
I am getting the following error:
C:\Python36\Dartfish\Scripts\python.exe C:/Workspace/COC-Dartfish/Dartfish/Dropbox_Download.py SBL Traceback (most recent call last): File "C:\Python36\Dartfish\lib\site-packages\urllib3\connectionpool.py", line 677, in urlopen chunked=chunked, File "C:\Python36\Dartfish\lib\site-packages\urllib3\connectionpool.py", line 381, in _make_request self._validate_conn(conn) File "C:\Python36\Dartfish\lib\site-packages\urllib3\connectionpool.py", line 976, in _validate_conn conn.connect() File "C:\Python36\Dartfish\lib\site-packages\urllib3\connection.py", line 370, in connect ssl_context=context, File "C:\Python36\Dartfish\lib\site-packages\urllib3\util\ssl_.py", line 377, in ssl_wrap_socket return context.wrap_socket(sock, server_hostname=server_hostname) File "C:\Program Files\Python36\lib\ssl.py", line 407, in wrap_socket _context=self, _session=session) File "C:\Program Files\Python36\lib\ssl.py", line 817, in __init__ self.do_handshake() File "C:\Program Files\Python36\lib\ssl.py", line 1077, in do_handshake self._sslobj.do_handshake() File "C:\Program Files\Python36\lib\ssl.py", line 689, in do_handshake self._sslobj.do_handshake() ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Python36\Dartfish\lib\site-packages\requests\adapters.py", line 449, in send timeout=timeout File "C:\Python36\Dartfish\lib\site-packages\urllib3\connectionpool.py", line 725, in urlopen method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2] File "C:\Python36\Dartfish\lib\site-packages\urllib3\util\retry.py", line 439, in increment raise MaxRetryError(_pool, url, error or ResponseError(cause)) urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='content.dropboxapi.com', port=443): Max retries exceeded with url: /2/files/download (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)'),)) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:/Workspace/COC-Dartfish/Dartfish/Dropbox_Download.py", line 95, in <module> dd = DropBoxDownload(args.sportscode) File "C:/Workspace/COC-Dartfish/Dartfish/Dropbox_Download.py", line 39, in __init__ self.process_entries() File "C:/Workspace/COC-Dartfish/Dartfish/Dropbox_Download.py", line 84, in process_entries dbx.files_download_to_file(local_file, entry.path_lower) File "C:\Python36\Dartfish\lib\site-packages\dropbox\base.py", line 1238, in files_download_to_file None, File "C:\Python36\Dartfish\lib\site-packages\dropbox\dropbox.py", line 274, in request timeout=timeout) File "C:\Python36\Dartfish\lib\site-packages\dropbox\dropbox.py", line 365, in request_json_string_with_retry timeout=timeout) File "C:\Python36\Dartfish\lib\site-packages\dropbox\dropbox.py", line 449, in request_json_string timeout=timeout, File "C:\Python36\Dartfish\lib\site-packages\requests\sessions.py", line 578, in post return self.request('POST', url, data=data, json=json, **kwargs) File "C:\Python36\Dartfish\lib\site-packages\requests\sessions.py", line 530, in request resp = self.send(prep, **send_kwargs) File "C:\Python36\Dartfish\lib\site-packages\requests\sessions.py", line 643, in send r = adapter.send(request, **kwargs) File "C:\Python36\Dartfish\lib\site-packages\requests\adapters.py", line 514, in send raise SSLError(e, request=request) requests.exceptions.SSLError: HTTPSConnectionPool(host='content.dropboxapi.com', port=443): Max retries exceeded with url: /2/files/download (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)'),)) Process finished with exit code 1
To give you context, I am using a python library to download some files, this seemed to be working however I am not sure when it stopped working. However, I just tried this program on my windows 10 machine, and also a spare Linux machine with the same error.
I have tried the different solutions provided, but none of them seemed to have worked. If someone can help me out, that'd be really awesome. Appreciate your help.
Running:
dropbox 10.2.0
Python 3
That shouldn't be the issue here. The files_download_to_file method does allow you to download files from shared folders. Also, the error you're getting indicates an issue establishing the secure TLS connection with the Dropbox API servers, which occurs before the Dropbox API itself validates the call or its parameters anyway.
- mhnakhudaNew member | Level 2
It should say 3.6 instead of Python 3.
- mhnakhudaNew member | Level 2
For context here's the code I am running
dbx = dropbox.Dropbox("MY TOKEN!!") result = dbx.files_list_folder("", recursive=True) while result.has_more: result = dbx.files_list_folder_continue(result.cursor) for entry in result.entries:
- Greg-DBDropbox Staff
I see from the stack trace that this error is occurring during files_download_to_file. I just gave that, as well as the other methods you included in the code snippet, a try with Python 3.6 and v10.2.0 of the Dropbox Python library on Windows though and it worked fine for me.
The error you're getting would seem to indicate that the Dropbox API servers aren't being served with a valid certificate, however that is not the case.
Is there anything on your network connection, e.g., a proxy, firewall, anti-virus, or other such software that may be interfering with your connection to the Dropbox API servers? For the files_download_to_file method in particular, it would be to the content.dropboxapi.com host.
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