<p>我有个boto3客户:</p>
<pre><code>boto3.client('kms')
</code></pre>
<p>但它发生在新机器上,它们是动态打开和关闭的。</p>
<pre><code> if endpoint is None:
if region_name is None:
# Raise a more specific error message that will give
# better guidance to the user what needs to happen.
raise NoRegionError()
</code></pre>
<p>为什么会这样?为什么只有一部分时间?</p>