Traceback (most recent call last):


 "/root/.local/bin/fab", line 11, in <module>

sys.exit(program.run())


 "/root/.local/lib/python3.5/site-packages/invoke/program.py", line 363, in run

self.execute()


 "/root/.local/lib/python3.5/site-packages/invoke/program.py", line 532, in execute

executor.execute(*self.tasks)


 "/root/.local/lib/python3.5/site-packages/invoke/executor.py", line 129, in execute

result = call.task(*args, **call.kwargs)


 "/root/.local/lib/python3.5/site-packages/invoke/tasks.py", line 128, in __call__

result = self.body(*args, **kwargs)


 "/root/fabfile.py", line 9, in backup_hosts

c.get("/etc/hosts", "hosts-{}".format(c.host))


 "/root/.local/lib/python3.5/site-packages/fabric/connection.py", line 756, in get

return Transfer(self).get(*args, **kwargs)


 "/root/.local/lib/python3.5/site-packages/fabric/transfer.py", line 107, in get

self.sftp.getcwd() or self.sftp.normalize("."), remote


 "/root/.local/lib/python3.5/site-packages/fabric/transfer.py", line 33, in sftp

return self.connection.sftp()


 "<decorator-gen-5>", line 2, in sftp


 "/root/.local/lib/python3.5/site-packages/fabric/connection.py", line 29, in opens

self.open()


 "/root/.local/lib/python3.5/site-packages/fabric/connection.py", line 615, in open

self.client.connect(**kwargs)


 "/root/.local/lib/python3.5/site-packages/paramiko/client.py", line 437, in connect

passphrase,


 "/root/.local/lib/python3.5/site-packages/paramiko/client.py", line 725, in _auth

self._transport.auth_publickey(username, key)


 "/root/.local/lib/python3.5/site-packages/paramiko/transport.py", line 1507, in auth_publickey

return self.auth_handler.wait_for_response(my_event)


 "/root/.local/lib/python3.5/site-packages/paramiko/auth_handler.py", line 236, in wait_for_response

raise e


 "/root/.local/lib/python3.5/site-packages/paramiko/transport.py", line 2036, in run

handler(self.auth_handler, m)


 "/root/.local/lib/python3.5/site-packages/paramiko/auth_handler.py", line 298, in _parse_service_accept

sig = self.private_key.sign_ssh_data(blob)


 "/root/.local/lib/python3.5/site-packages/paramiko/rsakey.py", line 116, in sign_ssh_data

sig = self.key.sign(
AttributeError: '_RSAPrivateKey' object has no attribute 'sign'


Traceback (most recent call last):


 "D:\Anaconda3\lib\site-packages\conda\exceptions.py", line 632, in conda_exception_handler

return_value = func(*args, **kwargs)


 "D:\Anaconda3\lib\site-packages\conda\cli\main.py", line 137, in _main

exit_code = args.func(args, p)


 "D:\Anaconda3\lib\site-packages\conda\cli\main_create.py", line 68, in execute

install(args, parser, 'create')


 "D:\Anaconda3\lib\site-packages\conda\cli\install.py", line 221, in install

unknown=index_args['unknown'], prefix=prefix)


 "D:\Anaconda3\lib\site-packages\conda\core\index.py", line 93, in get_index

index = fetch_index(channel_priority_map, use_cache=use_cache)


 "D:\Anaconda3\lib\site-packages\conda\core\index.py", line 112, in fetch_index

repodatas = collect_all_repodata(use_cache, tasks)


 "D:\Anaconda3\lib\site-packages\conda\core\repodata.py", line 74, in collect_all_repodata

repodatas = _collect_repodatas_serial(use_cache, tasks)


 "D:\Anaconda3\lib\site-packages\conda\core\repodata.py", line 481, in _collect_repodatas_serial

for url, schan, pri in tasks]


 "D:\Anaconda3\lib\site-packages\conda\core\repodata.py", line 481, in <listcomp>

for url, schan, pri in tasks]


 "D:\Anaconda3\lib\site-packages\conda\core\repodata.py", line 109, in func

res = f(*args, **kwargs)


 "D:\Anaconda3\lib\site-packages\conda\core\repodata.py", line 460, in fetch_repodata

mod_etag_headers.get('_mod'))


 "D:\Anaconda3\lib\site-packages\conda\core\repodata.py", line 138, in fetch_repodata_remote_request

timeout=timeout)


 "D:\Anaconda3\lib\site-packages\requests\sessions.py", line 531, in get

return self.request('GET', url, **kwargs)


 "D:\Anaconda3\lib\site-packages\requests\sessions.py", line 518, in request

resp = self.send(prep, **send_kwargs)


 "D:\Anaconda3\lib\site-packages\requests\sessions.py", line 639, in send

r = adapter.send(request, **kwargs)


 "D:\Anaconda3\lib\site-packages\requests\adapters.py", line 438, in send

timeout=timeout


 "D:\Anaconda3\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 594, in urlopen

self._prepare_proxy(conn)


 "D:\Anaconda3\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 810, in _prepare_proxy

conn.connect()


 "D:\Anaconda3\lib\site-packages\requests\packages\urllib3\connection.py", line 284, in connect

conn = self._new_conn()


 "D:\Anaconda3\lib\site-packages\requests\packages\urllib3\connection.py", line 141, in _new_conn

(self.host, self.port), self.timeout, **extra_kw)


 "D:\Anaconda3\lib\site-packages\requests\packages\urllib3\util\connection.py", line 51, in create_connection

if host.startswith('['):

AttributeError: 'NoneType' object has no attribute 'startswith'