Connection not established in generate.py

[HusainKapadia]

I followed all the instructions correctly. I am facing an issue with establishing the connection with MTurk. I get the following error:

Traceback (most recent call last):
  File "/home/husain/Work/Code/Computer Vision/aws-mc-turk/generate.py", line 17, in <module>
    account_balance = mtc.get_account_balance()[0]
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/site-packages/boto/mturk/connection.py", line 74, in get_account_balance
    ('OnHoldBalance', Price)])
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/site-packages/boto/mturk/connection.py", line 837, in _process_request
    response = self.make_request(None, params, verb='POST')
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/site-packages/boto/connection.py", line 1116, in make_request
    return self._mexe(http_request)
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/site-packages/boto/connection.py", line 1030, in _mexe
    raise ex
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/site-packages/boto/connection.py", line 943, in _mexe
    request.body, request.headers)
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/http/client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/http/client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/http/client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/http/client.py", line 1026, in _send_output
    self.send(msg)
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/http/client.py", line 964, in send
    self.connect()
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/site-packages/boto/https_connection.py", line 119, in connect
    sock = socket.create_connection((self.host, self.port), self.timeout)
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/socket.py", line 704, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "/home/husain/anaconda3/envs/aws_mcturk/lib/python3.6/socket.py", line 745, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -2] Name or service not known

Process finished with exit code 1

I added a line after mtc to show my account balance in order to debug the code. But it shows the error. Please help me fix this issue.