plugins: Switch exec and upload to async/await.

plugins/exec.py

@@ -47,16 +47,15 @@ class Plugin(BasePlugin):
                 help='Execute a shell command and prints the result in the information buffer. The command should be ONE argument, that means it should be between \"\". The first argument (before the command) can be -o or -O. If -o is specified, it sends the result in the current conversation. If -O is specified, it sends the command and its result in the current conversation.\nExample: /exec -O \"uptime\" will send “uptime\n20:36:19 up  3:47,  4 users,  load average: 0.09, 0.13, 0.09” in the current conversation.',
                 short='Execute a command')
 
-    @asyncio.coroutine
-    def async_exec(self, command, arg):
+    async def async_exec(self, command, arg):
         create = asyncio.create_subprocess_exec('sh', '-c', command,
                     stdout=subprocess.PIPE, stderr=subprocess.PIPE)
         try:
-            process = yield from create
+            process = await create
         except OSError as e:
             self.api.information('Failed to execute command: %s' % (e,), 'Error')
             return
-        stdout, stderr = yield from process.communicate()
+        stdout, stderr = await process.communicate()
         result = stdout.decode('utf-8')
         stderr = stderr.decode('utf-8')
         if arg == '-o':
@@ -69,7 +68,7 @@ class Plugin(BasePlugin):
             self.api.information('%s:\n%s' % (command, result), 'Info')
         if stderr:
             self.api.information('stderr for %s:\n%s' % (command, stderr), 'Info')
-        yield from process.wait()
+        await process.wait()
 
     def command_exec(self, args):
         args = common.shell_split(args)

plugins/upload.py

@@ -38,10 +38,9 @@ class Plugin(BasePlugin):
                     short='Upload a file',
                     completion=self.completion_filename)
 
-    @asyncio.coroutine
-    def async_upload(self, filename):
+    async def async_upload(self, filename):
         try:
-            url = yield from self.core.xmpp['xep_0363'].upload_file(filename)
+            url = await self.core.xmpp['xep_0363'].upload_file(filename)
         except Exception:
             exception = traceback.format_exc()
             self.api.information('Failed to upload file: %s' % exception, 'Error')