Traceback (most recent call last):


 "/opt/conda/lib/python3.6/site-packages/urllib3/connectionpool.py", line 601, in urlopen

chunked=chunked)


 "/opt/conda/lib/python3.6/site-packages/urllib3/connectionpool.py", line 346, in _make_request

self._validate_conn(conn)


 "/opt/conda/lib/python3.6/site-packages/urllib3/connectionpool.py", line 850, in _validate_conn

conn.connect()


 "/opt/conda/lib/python3.6/site-packages/urllib3/connection.py", line 326, in connect

ssl_context=context)


 "/opt/conda/lib/python3.6/site-packages/urllib3/util/ssl_.py", line 329, in ssl_wrap_socket

return context.wrap_socket(sock, server_hostname=server_hostname)


 "/opt/conda/lib/python3.6/ssl.py", line 407, in wrap_socket

_context=self, _session=session)


 "/opt/conda/lib/python3.6/ssl.py", line 814, in __init__

self.do_handshake()


 "/opt/conda/lib/python3.6/ssl.py", line 1068, in do_handshake

self._sslobj.do_handshake()


 "/opt/conda/lib/python3.6/ssl.py", line 689, in do_handshake

self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)

Traceback (most recent call last):

 "<stdin>", line 1, in <module>

 "/usr/lib/python2.7/site-packages/mpmath/ctx_iv.py", line 230, in lop_real
if not isinstance(t, ctx._types): t = ctx.convert(t)

 "/usr/lib/python2.7/site-packages/mpmath/ctx_iv.py", line 415, in convert
assert mpf_le(a, b), "endpoints must be properly ordered"

 "/usr/lib/python2.7/site-packages/mpmath/libmp/libmpf.py", line 608, in mpf_le
return mpf_cmp(s, t) <= 0

 "/usr/lib/python2.7/site-packages/mpmath/libmp/libmpf.py", line 555, in mpf_cmp
ssign, sman, sexp, sbc = sTypeError: 'NoneType' object is not iterable What version of the product are you using? On what operating system? Fedora 18, python 2.7.3, mpmath 0.17 Please provide any additional information below.