Attribute Error: 'NoneType' object has no attribute '_x509'

[majurr]

Gente bom dia.
Ao tentar emitir NF-e ou fazer Download de XML recebo o erro abaixo

Traceback (most recent call last):
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/uvicorn/protocols/http/h11_impl.py", line 396, in run_asgi
result = await app(self.scope, self.receive, self.send)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in call
return await self.app(scope, receive, send)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/fastapi/applications.py", line 199, in call
await super().call(scope, receive, send)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/applications.py", line 111, in call
await self.middleware_stack(scope, receive, send)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/middleware/errors.py", line 181, in call
raise exc from None
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/middleware/errors.py", line 159, in call
await self.app(scope, receive, _send)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/exceptions.py", line 82, in call
raise exc from None
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/exceptions.py", line 71, in call
await self.app(scope, receive, sender)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/routing.py", line 566, in call
await route.handle(scope, receive, send)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/routing.py", line 227, in handle
await self.app(scope, receive, send)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/routing.py", line 41, in app
response = await func(request)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/fastapi/routing.py", line 201, in app
raw_response = await run_endpoint_function(
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/fastapi/routing.py", line 150, in run_endpoint_function
return await run_in_threadpool(dependant.call, **values)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/starlette/concurrency.py", line 34, in run_in_threadpool
return await loop.run_in_executor(None, func, *args)
File "/home/mario/.pyenv/versions/3.9.2/lib/python3.9/concurrent/futures/thread.py", line 52, in run
result = self.fn(*self.args, **self.kwargs)
File "./main.py", line 38, in emitir_nfe
a1 = AssinaturaA1(certificado, senha)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/pynfe/processamento/assinatura.py", line 30, in init
self.key, self.cert = CertificadoA1(certificado).separar_arquivo(senha)
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/pynfe/entidades/certificado.py", line 67, in separar_arquivo
cert = crypto.dump_certificate(crypto.FILETYPE_PEM, pkcs12.get_certificate()).decode('utf-8')
File "/home/mario/.pyenv/versions/3.9.2/envs/dfe/lib/python3.9/site-packages/OpenSSL/crypto.py", line 1812, in dump_certificate
result_code = _lib.PEM_write_bio_X509(bio, cert._x509)
AttributeError: 'NoneType' object has no attribute '_x509'

Agradeço a atenção e ajuda de todos.

[leogregianin]

Bom dia @devjhunior,

Já fiz testes com a lib em python 3.6 e 3.7, acredito que com python 3.9 tenha pouco ou nenhum teste.

Acredito que o problema esteja nas versões das dependências no seu ambiente.

Pode informar quais as versões que tem instalado com os comandos abaixo?

python -c 'import OpenSSL; print(OpenSSL.__version__)'
python -c 'import cryptography; print(cryptography.__version__)'
python -c 'import requests; print(requests.__version__)'

[majurr]

Bom dia @devjhunior ,

Já fiz testes com a lib em python 3.6 e 3.7, acredito que com python 3.9 tenha pouco ou nenhum teste.

Acredito que o problema está nas versões das dependências no seu ambiente.

Pode informar quais são as versões que tem instalado com os comandos abaixo?

python -c 'import OpenSSL; print(OpenSSL.__version__)'
19.1.0
python -c 'import cryptography; print(cryptography.__version__)'
3.4.7
python -c 'import requests; print(requests.__version__)'
2.25.1

São as respectivas versões que estou trabalhando.
Obrigado pela resposta @leogregianin

[majurr]

[Resolvido]

Problema: Certificado digital corrompido - sem a chave privada.

[SabrinaWinckler]

[Resolvido]

Problema: Certificado digital corrompido - sem a chave privada.

Como você pegou o certificado sem ficar corrompido?