1">
<li class="listitem">
              lifting the compile-time restriction on <code class="computeroutput"><span class="keyword">char</span>
              <span class="keyword">const</span> <span class="special">*</span></code>
              callback returns
            </li>
<li class="listitem">
              detecting the case when the reference count on the result Python object
              is 1 and throwing an exception inside of <code class="computeroutput"><span class="identifier">call</span><span