尝试从python“ httplib2”执行Post Web服务调用 使用代理设置，但会抛出异常 ERR_SECURE_CONNECT_FAIL
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<body id=ERR_SECURE_CONNECT_FAIL>
<div id="titles">
<h1>ERROR</h1>
<h2>The requested URL could not be retrieved</h2>
</div>
<hr>
<div id="content">
<p>The following error was encountered while trying to retrieve the URL:
<a href="63.121.30.175:8443">63.121.30.175:8443</a></p>
<blockquote id="error">
<p><b>Failed to establish a secure connection to 63.121.30.175</b></p>
</blockquote>
<div id="sysmsg">
<p>The system returned:</p>
<blockquote id="data">
<pre>(71) Protocol error (TLS code: SQUID_ERR_SSL_HANDSHAKE)</pre>
<p>Handshake with SSL server failed: error:140840FF:SSLroutines:ssl3_connect:unknown state</p>
</blockquote>
</div>
<p>This proxy and the remote host failed to negotiate a mutually acceptable security settings for handling your request. It is possible that the remote host does not support secure connections, or the proxy is not satisfied with the host security credentials.</p>
</div>
</body>
</HTML>