Fixing import error

docs/conf.py

@@ -31,7 +31,7 @@ class Mock(MagicMock):
     def __getattr__(cls, name):
             return Mock()
 
-MOCK_MODULES = ['libnacl']
+MOCK_MODULES = ['libnacl.sign']
 sys.modules.update((mod_name, Mock()) for mod_name in MOCK_MODULES)
 
 # If your documentation needs a minimal Sphinx version, state it here.

ucoinpy/key/signing_key.py

@@ -5,7 +5,8 @@ Ucoin public and private keys
 """
 
 import base58
-import libnacl
+import base64
+import libnacl.sign
 from pylibscrypt import scrypt
 
 
@@ -22,7 +23,6 @@ def _ensure_bytes(data):
 
     return data
 
-
 class SigningKey(libnacl.sign.Signer):
     def __init__(self, salt, password):
         salt = _ensure_bytes(salt)