Package: certbot Version: 0.10.2-1 Severity: important Trying to run certbot on a fresh install on my Stretch box leads me to the following stackdump:
tomman@himawari:~$ certbot Traceback (most recent call last): File "/usr/bin/certbot", line 11, in <module> load_entry_point('certbot==0.10.2', 'console_scripts', 'certbot')() File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 561, in load_entry_point return get_distribution(dist).load_entry_point(group, name) File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2631, in load_entry_point return ep.load() File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2291, in load return self.resolve() File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2297, in resolve module = __import__(self.module_name, fromlist=['__name__'], level=0) File "/usr/lib/python2.7/dist-packages/certbot/main.py", line 13, in <module> from acme import jose File "/usr/lib/python2.7/dist-packages/acme/jose/__init__.py", line 37, in <module> from acme.jose.interfaces import JSONDeSerializable File "/usr/lib/python2.7/dist-packages/acme/jose/interfaces.py", line 9, in <module> from acme.jose import util File "/usr/lib/python2.7/dist-packages/acme/jose/util.py", line 5, in <module> import OpenSSL File "/usr/lib/python2.7/dist-packages/OpenSSL/__init__.py", line 8, in <module> from OpenSSL import rand, crypto, SSL File "/usr/lib/python2.7/dist-packages/OpenSSL/rand.py", line 12, in <module> from OpenSSL._util import ( File "/usr/lib/python2.7/dist-packages/OpenSSL/_util.py", line 6, in <module> from cryptography.hazmat.bindings.openssl.binding import Binding File "/usr/lib/python2.7/dist- packages/cryptography/hazmat/bindings/openssl/binding.py", line 14, in <module> from cryptography.hazmat.bindings._openssl import ffi, lib AttributeError: 'module' object has no attribute '_init_cffi_1_0_external_module' I've tried manually installing python3-cffi and python-cffi, without luck. Therefore the package is useless for me. I really have no clue on what to try next. -- System Information: Debian Release: 9.0 APT prefers testing APT policy: (990, 'testing'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-2-amd64 (SMP w/4 CPU cores) Locale: LANG=es_VE.UTF-8, LC_CTYPE=es_VE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages certbot depends on: ii init-system-helpers 1.47 ii python-certbot 0.10.2-1 pn python:any <none> certbot recommends no packages. Versions of packages certbot suggests: pn python-certbot-apache <none> pn python-certbot-doc <none> -- no debconf information