python-cffi / cffi

A Foreign Function Interface package for calling C libraries from Python.
https://cffi.readthedocs.io/en/latest/
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ModuleNotFoundError: No module named '_cffi_backend' #138

Open firdouseM opened 1 day ago

firdouseM commented 1 day ago

mod_wsgi (pid=2135587): Failed to exec Python script file '/var/www/html/atc/atc/wsgi.py'. mod_wsgi (pid=2135587): Exception occurred processing WSGI script '/var/www/html/atc/atc/wsgi.py'. Traceback (most recent call last): File "/var/www/html/atc/atc/wsgi.py", line 29, in application = get_wsgi_application() File "/var/www/html/venv_atc/lib/python3.7/site-packages/django/core/wsgi.py", line 13, in get_wsgi_application return WSGIHandler() File "/var/www/html/venv_atc/lib/python3.7/site-packages/django/core/handlers/wsgi.py", line 127, in init self.load_middleware() File "/var/www/html/venv_atc/lib/python3.7/site-packages/django/core/handlers/base.py", line 35, in load_middleware middleware = import_string(middleware_path) File "/var/www/html/venv_atc/lib/python3.7/site-packages/django/utils/module_loading.py", line 17, in import_string module = import_module(module_path) File "/usr/lib64/python3.6/importlib/init.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 994, in _gcd_import File "", line 971, in _find_and_load File "", line 955, in _find_and_load_unlocked File "", line 665, in _load_unlocked File "", line 678, in exec_module File "", line 219, in _call_with_frames_removed File "/var/www/html/venv_atc/lib/python3.7/site-packages/mozilla_django_oidc/middleware.py", line 12, in from mozilla_django_oidc.auth import OIDCAuthenticationBackend File "/var/www/html/venv_atc/lib/python3.7/site-packages/mozilla_django_oidc/auth.py", line 16, in from josepy.b64 import b64decode File "/var/www/html/venv_atc/lib/python3.7/site-packages/josepy/init.py", line 41, in from josepy.interfaces import JSONDeSerializable File "/var/www/html/venv_atc/lib/python3.7/site-packages/josepy/interfaces.py", line 6, in from josepy import errors, util File "/var/www/html/venv_atc/lib/python3.7/site-packages/josepy/util.py", line 4, in import OpenSSL File "/var/www/html/venv_atc/lib/python3.7/site-packages/OpenSSL/init.py", line 8, in from OpenSSL import crypto, SSL File "/var/www/html/venv_atc/lib/python3.7/site-packages/OpenSSL/crypto.py", line 17, in from OpenSSL._util import ( File "/var/www/html/venv_atc/lib/python3.7/site-packages/OpenSSL/_util.py", line 6, in from cryptography.hazmat.bindings.openssl.binding import Binding File "/var/www/html/venv_atc/lib/python3.7/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 14, in from cryptography.hazmat.bindings._openssl import ffi, lib ModuleNotFoundError: No module named '_cffi_backend'

appdirs==1.4.4 asgiref==3.3.4 attrs==21.1.0 autoit==0.2.3 cached-property==1.5.2 certifi==2020.12.5 cffi==1.15.1 chardet==4.0.0 click==7.1.2 cryptography==3.4.7 dataclasses==0.6 defusedxml==0.7.1 distlib==0.3.9 Django==3.0.5 django-multiselectfield==0.1.12 djongo==1.3.4 elastic-transport==8.4.1 elasticsearch==7.12.0 filelock==3.12.2 greenlet==1.0.0 gunicorn==23.0.0 idna==2.10 importlib-metadata==6.6.0 isodate==0.6.0 joblib==1.0.1 josepy==1.8.0 lxml==4.6.3 mod-wsgi==4.9.4 mozilla-django-oidc==1.2.4 multi-key-dict==2.0.3 mysql-connector-python==8.0.23 nltk==3.5 numpy==1.20.2 packaging==24.0 pandas==1.2.3 pbr==5.5.1 Pillow==8.1.2 pipdeptree==2.9.6 platformdirs==4.0.0 protobuf==3.15.8 psutil==5.8.0 pyasn1==0.5.1 PyAutoIt==0.6.5 pycparser==2.21 pymongo==3.12.3 pymsteams==0.1.14 pyOpenSSL==20.0.1 python-dateutil==2.8.1 python-jenkins==1.7.0 pytz==2021.1 rauth==0.7.3 regex==2021.4.4 requests==2.25.1 requests-file==1.5.1 requests-toolbelt==0.9.1 selenium==3.141.0 six==1.16.0 SQLAlchemy==1.4.4 sqlparse==0.2.4 tqdm==4.60.0 typing_extensions==4.7.1 urllib3==1.26.2 virtualenv==20.26.6 zeep==4.0.0 zipp==3.4.1

Python 3.7 is the current one with RHEL 8 server.

arigo commented 1 day ago

Search for _cffi_backend*.so in /var/www/html/venv_atc/lib/python3.7/site-packages/. If it is not there, then your installation is broken and cffi==1.15.1 is not actually installed.