Traceback (most recent call last):

 "./venv/bin/letsencrypt", line 9, in <module>
load_entry_point('letsencrypt==0.1', 'console_scripts', 'letsencrypt')()

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/venv/lib/python2.7/site-packages/pkg_resources/**init**.py", line 519, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/venv/lib/python2.7/site-packages/pkg_resources/**init**.py", line 2630, in load_entry_point
return ep.load()

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/venv/lib/python2.7/site-packages/pkg_resources/**init**.py", line 2310, in load
return self.resolve()

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/venv/lib/python2.7/site-packages/pkg_resources/**init**.py", line 2316, in resolve
module = **import**(self.module_name, fromlist=['**name**'], level=0)

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/letsencrypt/cli.py", line 16, in <module>
from letsencrypt import account

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/letsencrypt/account.py", line 9, in <module>
from acme import messages2

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/acme/messages2.py", line 2, in <module>
from acme import challenges

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/acme/challenges.py", line 8, in <module>
from acme import jose

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/acme/jose/**init**.py", line 39, in <module>
from acme.jose.json_util import (

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/acme/jose/json_util.py", line 13, in <module>
import M2Crypto

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/venv/lib/python2.7/site-packages/M2Crypto/**init**.py", line 24, in <module>
import ASN1

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/venv/lib/python2.7/site-packages/M2Crypto/ASN1.py", line 12, in <module>
import BIO

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/venv/lib/python2.7/site-packages/M2Crypto/BIO.py", line 221, in <module>
class CipherStream(BIO):

 "/home/pe243/rpmbuild/git.src/lets-encrypt-preview/venv/lib/python2.7/site-packages/M2Crypto/BIO.py", line 227, in CipherStream
SALT_LEN = m2.PKCS5_SALT_LENAttributeError: 'module' object has no attribute 'PKCS5_SALT_LEN'
Traceback (most recent call last):

 "/usr/lib/python2.7/logging/**init**.py", line 872, in emit
stream.write(fs &#37; msg)

 "/usr/lib/python2.7/StringIO.py", line 213, in write
_complain_ifclosed(self.closed)

 "/usr/lib/python2.7/StringIO.py", line 40, in _complain_ifclosed
raise ValueError, "I/O operation on closed file"ValueError: I/O operation on closed file