Description of problem:
I tried running cerbot on epel7, it fails just after the ncurse window asks for the email address.

Version-Release number of selected component (if applicable):
python2-certbot-0.8.1-2.el7.noarch

How reproducible:
always

Steps to Reproduce:
1. certbot certonly --standalone -d <domain>
2. provide the email in the ncurse window
3. crashs

Actual results:
2016-07-19 13:36:29,368:DEBUG:certbot.main:Root logging level set at 30
2016-07-19 13:36:29,369:INFO:certbot.main:Saving debug log to /var/log/letsencrypt/letsencrypt.log
2016-07-19 13:36:29,369:DEBUG:certbot.main:certbot version: 0.8.1
2016-07-19 13:36:29,369:DEBUG:certbot.main:Arguments: ['--standalone', '-d', 'hubs-dev.fedorainfracloud.org']
2016-07-19 13:36:29,369:DEBUG:certbot.main:Discovered plugins: PluginsRegistry(PluginEntryPoint#webroot,PluginEntryPoint#null,PluginEntryPoint#manual,PluginEntryPoint#standalone)
2016-07-19 13:36:29,377:DEBUG:certbot.plugins.selection:Requested authenticator standalone and installer None
2016-07-19 13:36:29,486:DEBUG:certbot.plugins.selection:Single candidate plugin: * standalone
Description: Automatically use a temporary webserver
Interfaces: IAuthenticator, IPlugin
Entry point: standalone = certbot.plugins.standalone:Authenticator
Initialized: <certbot.plugins.standalone.Authenticator object at 0x1b2d450>
Prep: True
2016-07-19 13:36:29,486:DEBUG:certbot.plugins.selection:Selected authenticator <certbot.plugins.standalone.Authenticator object at 0x1b2d450> and installer None
2016-07-19 13:36:36,802:DEBUG:certbot.main:Exiting abnormally:
Traceback (most recent call last):
  File "/usr/bin/certbot", line 9, in <module>
    load_entry_point('certbot==0.8.1', 'console_scripts', 'certbot')()
  File "/usr/lib/python2.7/site-packages/certbot/main.py", line 744, in main
    return config.func(config, plugins)
  File "/usr/lib/python2.7/site-packages/certbot/main.py", line 550, in obtain_cert
    le_client = _init_le_client(config, auth, installer)
  File "/usr/lib/python2.7/site-packages/certbot/main.py", line 360, in _init_le_client
    acc, acme = _determine_account(config)
  File "/usr/lib/python2.7/site-packages/certbot/main.py", line 345, in _determine_account
    config, account_storage, tos_cb=_tos_cb)
  File "/usr/lib/python2.7/site-packages/certbot/client.py", line 117, in register
    backend=default_backend())))
  File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/backends/__init__.py", line 40, in default_backend
    _default_backend = MultiBackend(_available_backends())
  File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/backends/__init__.py", line 27, in _available_backends
    "cryptography.backends"
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2208, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/backends/openssl/__init__.py", line 7, in <module>
    from cryptography.hazmat.backends.openssl.backend import backend
  File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 37, in <module>
    from cryptography.hazmat.backends.openssl.x509 import _Certificate
  File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/backends/openssl/x509.py", line 18, in <module>
    from cryptography import utils, x509
  File "/usr/lib64/python2.7/site-packages/cryptography/x509/__init__.py", line 8, in <module>
    from cryptography.x509.base import (
  File "/usr/lib64/python2.7/site-packages/cryptography/x509/base.py", line 15, in <module>
    from cryptography.x509.extensions import Extension, ExtensionType
  File "/usr/lib64/python2.7/site-packages/cryptography/x509/extensions.py", line 20, in <module>
    from cryptography.x509.general_name import GeneralName, IPAddress, OtherName
  File "/usr/lib64/python2.7/site-packages/cryptography/x509/general_name.py", line 18, in <module>
    from cryptography.x509.name import Name
  File "/usr/lib64/python2.7/site-packages/cryptography/x509/name.py", line 10, in <module>
    from cryptography.x509.oid import NameOID, ObjectIdentifier
  File "/usr/lib64/python2.7/site-packages/cryptography/x509/oid.py", line 101, in <module>
    utils.DeprecatedIn12
AttributeError: 'module' object has no attribute 'DeprecatedIn12'


Expected results:
certs :)