event_loop/uv.py: Conform to pyuv 1.0 API (#240)

Closes #88

* Specify minimum pyuv version where possible.
* Add extras_require for pyuv. `pip install neovim[pyuv]`

Author: heliomeiralins

neovim/msgpack_rpc/event_loop/uv.py

@@ -73,12 +73,11 @@ def _connect_child(self, argv):
                             flags=pyuv.UV_CREATE_PIPE + pyuv.UV_WRITABLE_PIPE)
         stderr = pyuv.StdIO(self._error_stream,
                             flags=pyuv.UV_CREATE_PIPE + pyuv.UV_WRITABLE_PIPE)
-        self._process = pyuv.Process(self._loop)
-        self._process.spawn(file=argv[0],
-                            exit_callback=self._on_exit,
-                            args=argv[1:],
-                            flags=pyuv.UV_PROCESS_WINDOWS_HIDE,
-                            stdio=(stdin, stdout, stderr,))
+        pyuv.Process.spawn(self._loop,
+                           args=argv,
+                           exit_callback=self._on_exit,
+                           flags=pyuv.UV_PROCESS_WINDOWS_HIDE,
+                           stdio=(stdin, stdout, stderr,))
         self._error_stream.start_read(self._on_read)
 
     def _start_reading(self):

setup.py

@@ -7,9 +7,12 @@
 install_requires = [
     'msgpack-python>=0.4.0',
 ]
+extras_require = {
+    'pyuv': ['pyuv>=1.0.0'],
+}
 
 if os.name == 'nt':
-    install_requires.append('pyuv')
+    install_requires.append('pyuv>=1.0.0')
 elif sys.version_info < (3, 4):
     # trollius is just a backport of 3.4 asyncio module
     install_requires.append('trollius')
@@ -29,4 +32,5 @@
       packages=['neovim', 'neovim.api', 'neovim.msgpack_rpc',
                 'neovim.msgpack_rpc.event_loop', 'neovim.plugin'],
       install_requires=install_requires,
+      extras_require=extras_require,
       zip_safe=False)