Make PyNaCl optional

discord/client.py

@@ -154,6 +154,10 @@ class Client:
         self._is_logged_in = asyncio.Event(loop=self.loop)
         self._is_ready = asyncio.Event(loop=self.loop)
 
+        if VoiceClient.warn_nacl:
+            VoiceClient.warn_nacl = False
+            log.warning("PyNaCl is not installed, voice will NOT be supported")
+
     # internals
 
     @asyncio.coroutine

discord/voice_client.py

@@ -51,10 +51,15 @@ import shlex
 import functools
 import datetime
 import audioop
-import nacl.secret
 
 log = logging.getLogger(__name__)
 
+try:
+    import nacl.secret
+    has_nacl = True
+except ImportError:
+    has_nacl = False
+
 from . import utils, opus
 from .gateway import *
 from .errors import ClientException, InvalidArgument, ConnectionClosed
@@ -182,6 +187,9 @@ class VoiceClient:
         The event loop that the voice client is running on.
     """
     def __init__(self, user, main_ws, session_id, channel, data, loop):
+        if not has_nacl:
+            raise RuntimeError("PyNaCl library needed in order to use voice")
+
         self.user = user
         self.main_ws = main_ws
         self.channel = channel
@@ -196,6 +204,8 @@ class VoiceClient:
         self.encoder = opus.Encoder(48000, 2)
         log.info('created opus encoder with {0.__dict__}'.format(self.encoder))
 
+    warn_nacl = not has_nacl
+
     @property
     def server(self):
         return self.channel.server

requirements.txt

@@ -1,3 +1,2 @@
 aiohttp>=0.21.0,<0.22.0
 websockets==3.1
-PyNaCl==1.0.1