OpenSSL.SSL.SysCallError: (-1, 'Unexpected EOF') error for Visual Recognition Watson API

Traceback (most recent call last):
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\contrib\pyopenssl.py", line 304, in _send_until_done
    return self.connection.send(data)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\OpenSSL\SSL.py", line 1729, in send
    self._raise_ssl_error(self._ssl, result)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\OpenSSL\SSL.py", line 1632, in _raise_ssl_error
    raise SysCallError(-1, "Unexpected EOF")
OpenSSL.SSL.SysCallError: (-1, 'Unexpected EOF')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\connectionpool.py", line 601, in urlopen
    chunked=chunked)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\connectionpool.py", line 357, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 1065, in _send_output
    self.send(chunk)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 986, in send
    self.sock.sendall(data)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\contrib\pyopenssl.py", line 316, in sendall
    sent = self._send_until_done(data[total_sent:total_sent + SSL_WRITE_BLOCKSIZE])
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\contrib\pyopenssl.py", line 311, in _send_until_done
    raise SocketError(str(e))
OSError: (-1, 'Unexpected EOF')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\adapters.py", line 440, in send
    timeout=timeout
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\connectionpool.py", line 639, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\util\retry.py", line 357, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\packages\six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\connectionpool.py", line 601, in urlopen
    chunked=chunked)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\connectionpool.py", line 357, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 1065, in _send_output
    self.send(chunk)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\http\client.py", line 986, in send
    self.sock.sendall(data)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\contrib\pyopenssl.py", line 316, in sendall
    sent = self._send_until_done(data[total_sent:total_sent + SSL_WRITE_BLOCKSIZE])
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\urllib3\contrib\pyopenssl.py", line 311, in _send_until_done
    raise SocketError(str(e))
urllib3.exceptions.ProtocolError: ('Connection aborted.', OSError("(-1, 'Unexpected EOF')",))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "Latest_Python_Commands.py", line 7, in <module>
    model = visual_recognition.create_classifier('images',normal_positive_examples=normal,pneumonia_positive_examples=pneumonia)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\watson_developer_cloud\visual_recognition_v3.py", line 259, in create_classifier
    accept_json=True)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\watson_developer_cloud\watson_service.py", line 434, in request
    **kwargs)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\api.py", line 58, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\sessions.py", line 508, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\sessions.py", line 618, in send
    r = adapter.send(request, **kwargs)
  File "C:\Users\Asus\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\adapters.py", line 490, in send
    raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', OSError("(-1, 'Unexpected EOF')",))



**I am getting the above error when I am trying to call Watson API for Visual Recognition for creating classifier. 

Below is the code:**

import watson_developer_cloud
import json
from watson_developer_cloud import VisualRecognitionV3
visual_recognition = VisualRecognitionV3( version='.......................',api_key='...........................................................................')
from os import listdir
with open('C:\\Users\\Asus\\Downloads\\normal.zip', 'rb') as normal, open('C:\\Users\\Asus\\Downloads\\pneumonia.zip', 'rb') as pneumonia:
    model = visual_recognition.create_classifier('images',normal_positive_examples=normal,pneumonia_positive_examples=pneumonia)

print(json.dumps(model, indent=2))


classifiers = visual_recognition.list_classifiers(verbose=True)
print(json.dumps(classifiers, indent=2))



Hi there! Thanks for opening this issue. Unfortunately, it seems this is a request for help instead of a report of a defect in the project. Please use [StackOverflow](https://stackoverflow.com) for general usage questions instead and only report defects here.

This is not a bug. The remote server is closing the file unexpectedly and we're telling you as much.

There's also no detail about the version of Requests used here. I suggest you bring this up with the Watson API developers.