I am working on computer with Ubuntu 16.04. I have anaconda installed and was using the jupyter notebook just fine both for julia and python a couple of hours while ago. I installed/reinstalled some packages but nothing out of the ordinary.
However, after closing notebooks and then trying to open them again I get error:
jupyter notebook
Traceback (most recent call last):
File "/home/user/anaconda2/bin/jupyter-notebook", line 4, in <module>
import notebook.notebookapp
File "/home/user/anaconda2/lib/python2.7/site-packages/notebook/notebookapp.py", line 60, in <module>
from .services.contents.manager import ContentsManager
File "/home/user/anaconda2/lib/python2.7/site-packages/notebook/services/contents/manager.py", line 16, in <module>
from nbformat import sign, validate, ValidationError
File "/home/user/anaconda2/lib/python2.7/site-packages/nbformat/__init__.py", line 33, in <module>
from .validator import validate, ValidationError
File "/home/user/anaconda2/lib/python2.7/site-packages/nbformat/validator.py", line 12, in <module>
from jsonschema import ValidationError
File "/home/user/anaconda2/lib/python2.7/site-packages/jsonschema/__init__.py", line 18, in <module>
from jsonschema.validators import (
File "/home/user/anaconda2/lib/python2.7/site-packages/jsonschema/validators.py", line 8, in <module>
import requests
File "/home/user/anaconda2/lib/python2.7/site-packages/requests/__init__.py", line 52, in <module>
from .packages.urllib3.contrib import pyopenssl
File "/home/user/anaconda2/lib/python2.7/site-packages/requests/packages/urllib3/contrib/pyopenssl.py", line 46, in <module>
import OpenSSL.SSL
File "/home/user/anaconda2/lib/python2.7/site-packages/OpenSSL/__init__.py", line 8, in <module>
from OpenSSL import rand, crypto, SSL
File "/home/user/anaconda2/lib/python2.7/site-packages/OpenSSL/rand.py", line 11, in <module>
from OpenSSL._util import (
File "/home/user/anaconda2/lib/python2.7/site-packages/OpenSSL/_util.py", line 7, in <module>
binding = Binding()
File "/home/user/anaconda2/lib/python2.7/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 89, in __init__
self._ensure_ffi_initialized()
File "/home/user/anaconda2/lib/python2.7/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 109, in _ensure_ffi_initialized
libraries=libraries,
File "/home/user/anaconda2/lib/python2.7/site-packages/cryptography/hazmat/bindings/utils.py", line 80, in build_ffi
extra_link_args=extra_link_args,
File "/home/user/anaconda2/lib/python2.7/site-packages/cffi/api.py", line 437, in verify
lib = self.verifier.load_library()
File "/home/user/anaconda2/lib/python2.7/site-packages/cffi/verifier.py", line 114, in load_library
return self._load_library()
File "/home/user/anaconda2/lib/python2.7/site-packages/cffi/verifier.py", line 225, in _load_library
return self._vengine.load_library()
File "/home/user/anaconda2/lib/python2.7/site-packages/cffi/vengine_cpy.py", line 158, in load_library
raise ffiplatform.VerificationError(error)
cffi.ffiplatform.VerificationError: importing '/home/user/anaconda2/lib/python2.7/site-packages/cryptography/_Cryptography_cffi_4ed9e37dx4000d087.so': /home/user/anaconda2/lib/python2.7/site-packages/cryptography/_Cryptography_cffi_4ed9e37dx4000d087.so: undefined symbol: SSLv2_client_method
I think this has to do with anaconda since the following comands will trigger the same error.
conda install jupyter
pip install jupyter
pip install python-igraph
I have already installed the libraries suggested by the answers to this question (meet cffi.ffiplatform.VerificationError when install pyopenssl). But it hasn't worked.
