Traceback (most recent call last):


 "/usr/bin/certbot", line 11, in <module>

load_entry_point('certbot==0.21.1', 'console_scripts', 'certbot')()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 561, in load_entry_point

return get_distribution(dist).load_entry_point(group, name)


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2631, in load_entry_point

return ep.load()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2291, in load

return self.resolve()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2297, in resolve

module = __import__(self.module_name, fromlist=['__name__'], level=0)


 "/usr/lib/python3/dist-packages/certbot/main.py", line 10, in <module>

import josepy as jose


 "/usr/lib/python3/dist-packages/josepy/__init__.py", line 41, in <module>

from josepy.interfaces import JSONDeSerializable


 "/usr/lib/python3/dist-packages/josepy/interfaces.py", line 8, in <module>

from josepy import errors, util


 "/usr/lib/python3/dist-packages/josepy/util.py", line 4, in <module>

import OpenSSL


 "/usr/lib/python3/dist-packages/OpenSSL/__init__.py", line 8, in <module>

from OpenSSL import crypto, SSL


 "/usr/lib/python3/dist-packages/OpenSSL/crypto.py", line 16, in <module>

from OpenSSL._util import (


 "/usr/lib/python3/dist-packages/OpenSSL/_util.py", line 6, in <module>

from cryptography.hazmat.bindings.openssl.binding import Binding


 "/usr/lib/python3/dist-packages/cryptography/hazmat/bindings/openssl/binding.py", line 156, in <module>

Binding.init_static_locks()


 "/usr/lib/python3/dist-packages/cryptography/hazmat/bindings/openssl/binding.py", line 137, in init_static_locks

cls._ensure_ffi_initialized()


 "/usr/lib/python3/dist-packages/cryptography/hazmat/bindings/openssl/binding.py", line 124, in _ensure_ffi_initialized

cls.lib = build_conditional_library(lib, CONDITIONAL_NAMES)


 "/usr/lib/python3/dist-packages/cryptography/hazmat/bindings/openssl/binding.py", line 84, in build_conditional_library

if not getattr(lib, condition):
AttributeError: cffi library '_openssl' has no function, constant or global variable named 'Cryptography_HAS_RSA_OAEP_MD'


Traceback (most recent call last):


 "/home/decentral1se/hacking/molecule/.venv/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 207, in <module>

main()


 "/home/decentral1se/hacking/molecule/.venv/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 197, in main

json_out['return_val'] = hook(**hook_input['kwargs'])


 "/home/decentral1se/hacking/molecule/.venv/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 69, in prepare_metadata_for_build_wheel

return hook(metadata_directory, config_settings)


 "/tmp/pip-build-env-701d0led/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 156, in prepare_metadata_for_build_wheel

self.run_setup()


 "/tmp/pip-build-env-701d0led/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 142, in run_setup

exec(compile(code, __file__, 'exec'), locals())


 "setup.py", line 350, in <module>

__name__ == '__main__' and setuptools.setup(**setup_params)


 "/tmp/pip-build-env-701d0led/overlay/lib/python3.7/site-packages/setuptools/__init__.py", line 145, in setup

return distutils.core.setup(**attrs)


 "/home/decentral1se/.pyenv/versions/3.7.2/lib/python3.7/distutils/core.py", line 108, in setup

_setup_distribution = dist = klass(attrs)


 "/tmp/pip-build-env-701d0led/overlay/lib/python3.7/site-packages/setuptools/dist.py", line 447, in __init__

k: v for k, v in attrs.items()


 "/home/decentral1se/.pyenv/versions/3.7.2/lib/python3.7/distutils/dist.py", line 292, in __init__

self.finalize_options()


 "/tmp/pip-build-env-701d0led/overlay/lib/python3.7/site-packages/setuptools/dist.py", line 735, in finalize_options

ep.load()(self, ep.name, value)


 "/tmp/pip-build-env-701d0led/overlay/lib/python3.7/site-packages/setuptools/dist.py", line 291, in check_specifier

packaging.specifiers.SpecifierSet(value)


 "/tmp/pip-build-env-701d0led/overlay/lib/python3.7/site-packages/setuptools/_vendor/packaging/specifiers.py", line 594, in __init__

specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]

AttributeError: 'SpecifierSet' object has no attribute 'split'
