can not connect to phoenix using python phoenixdb library
<p>I have Phoenix which is integrated with HBase.
I am trying to access phoenix from python code using pythondb library, and I have started the QueryServer using</p>

<pre><code>bin/queryserver.py start
</code></pre>

<p>But after the connect statement I get the following error:</p>

<pre><code>database_url = 'http://localhost:8765/'
conn = phoenixdb.connect(database_url, autocommit=True)
</code></pre>

<p>InternalError: ('Cannot find parser for', None, None, None)</p>

<p>and this is the error from log:</p>

<blockquote>
  <p>2016-08-10 14:24:07,987 WARN org.eclipse.jetty.server.HttpChannel: /
  java.lang.IllegalArgumentException: Cannot find parser for    at
  org.apache.calcite.avatica.remote.ProtobufTranslationImpl.getParserForRequest(ProtobufTranslationImpl.java:182)
    at
  org.apache.calcite.avatica.remote.ProtobufTranslationImpl.parseRequest(ProtobufTranslationImpl.java:239)
    at
  org.apache.calcite.avatica.remote.ProtobufHandler.decode(ProtobufHandler.java:42)
    at
  org.apache.calcite.avatica.remote.ProtobufHandler.decode(ProtobufHandler.java:28)
    at
  org.apache.calcite.avatica.remote.AbstractHandler.apply(AbstractHandler.java:95)
    at
  org.apache.calcite.avatica.remote.ProtobufHandler.apply(ProtobufHandler.java:38)
    at
  org.apache.calcite.avatica.server.AvaticaProtobufHandler.handle(AvaticaProtobufHandler.java:68)
    at
  org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
    at
  org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
    at org.eclipse.jetty.server.Server.handle(Server.java:497)  at
  org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)     at
  org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:245)
    at
  org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
    at
  org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
    at
  org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
    at java.lang.Thread.run(Thread.java:745)</p>
</blockquote>