import paramiko, Symbol not found: _crypto_box

[halbertchen]

When I import python paramiko library, I got this error:

File "/Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/libcloud/compute/ssh.py", line 23, in <module>
   import paramiko
 File "/Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/paramiko/__init__.py", line 31, in <module>
   from paramiko.transport import SecurityOptions, Transport
 File "/Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/paramiko/transport.py", line 57, in <module>
   from paramiko.ed25519key import Ed25519Key
 File "/Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/paramiko/ed25519key.py", line 22, in <module>
   import nacl.signing
 File "/Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/nacl/signing.py", line 19, in <module>
   import nacl.bindings
 File "/Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/nacl/bindings/__init__.py", line 17, in <module>
   from nacl.bindings.crypto_box import (
 File "/Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/nacl/bindings/crypto_box.py", line 18, in <module>
   from nacl._sodium import ffi, lib
ImportError: dlopen(/Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/nacl/_sodium.so, 2): Symbol not found: _crypto_box
 Referenced from: /Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/nacl/_sodium.so
 Expected in: flat namespace
in /Users/halbert/cloump_admin_cloud_venv/lib/python2.7/site-packages/nacl/_sodium.so

Is there anyone meet same error ?

[bitprophet]

Have not seen this before myself, my guess offhand would be a version mismatch between NaCL and libffi perhaps? If you can post all your versions of libffi/libffi-dev/ffi-devel/whatever those packages are on your OS, plus Python, Paramiko, NaCl, etc - maybe that'll help someone spot a clue.

[rbovill]

I also have this issue. I'll do my best to list my package versions, but I have no idea how to find the libffi version on MacOS:
MacOS==10.13.1
Python==2.7
PyNaCl==1.2.0
paramiko==2.4.0
cryptography==2.1.4
pyOpenSSL==0.13.1

Edit: Finally found libffi and got the version
/usr/lib/libffi.dylib:
/usr/lib/libffi.dylib (compatibility version 1.0.0, current version 1.0.0)

[bitprophet]

@rbovill Thanks for the info. FWIW my local dev env has been on PyNaCl 1.1.2, but upgrading to 1.2.0 hasn't reproduced the issue for me.

Re: ffi, I've got venvs with the Python-level lib cffi 1.10.x and 1.11.x and neither has issues. re: libffi itself, I'm actually rusty at delving into shared lib details but seems to be the same version as yours:

» otool -L /Users/jforcier/.virtualenvs/paramiko/lib/python2.7/site-packages/_cffi_backend.so      
/Users/jforcier/.virtualenvs/paramiko/lib/python2.7/site-packages/_cffi_backend.so:
        /usr/lib/libffi.dylib (compatibility version 1.0.0, current version 1.0.0)
        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1238.51.1)

I'm on macOS 10.12.6 myself; I'm guessing this isn't a 10.12 vs 10.13 issue though since original report was before 10.13 came out.

[rbovill]

@bitprophet Any progress on this issue? I'm basically blocked in my work while this issue exists.

[ploxiln]

Your issue is in pynacl, try re-installing it. see https://pynacl.readthedocs.io/en/stable/install/
pynacl depends on "cffi". I'd try re-installing the latest versions of both.