title: How to insert values using python in xml file
body: <p>I am programming novice and have just started learning python
  below is my xml file:</p>
  
  <pre><code>    &lt;Build_details&gt;
        &lt;Release number="1902"&gt;
          &lt;Build number="260"&gt;
            &lt;OMS&gt;
              &lt;Build_path&gt;ST_OMS_V1810_B340&lt;/Build_path&gt;
              &lt;Pc_version&gt;8041.30.01&lt;/Pc_version&gt;
            &lt;/OMS&gt;
            &lt;OMNI&gt;
              &lt;Build_path&gt;ST_OMNI_V1810_B340&lt;/Build_path&gt;
            &lt;/OMNI&gt;
          &lt;/Build&gt;
        &lt;/Release&gt;
        &lt;Release number="1810"&gt;
          &lt;Build number="230"&gt;
            &lt;OMS&gt;
              &lt;Build_path&gt;ST_OMS_909908&lt;/Build_path&gt;
              &lt;Pc_version&gt;8031.25.65&lt;/Pc_version&gt;
            &lt;/OMS&gt;
            &lt;OMNI&gt;
              &lt;Build_path&gt;ST_OMNI_798798789789&lt;/Build_path&gt;
            &lt;/OMNI&gt;
          &lt;/Build&gt;
        &lt;/Release&gt;
        &lt;Release number="1806"&gt;
          &lt;Build number="300"&gt;
            &lt;OMS&gt;
              &lt;Build_path&gt;ST_OMS_V18102_B300&lt;/Build_path&gt;
              &lt;Pc_version&gt;8041.30.01&lt;/Pc_version&gt;
            &lt;/OMS&gt;
            &lt;OMNI&gt;
              &lt;Build_path&gt;ST_OMNI_V18102_B300&lt;/Build_path&gt;
            &lt;/OMNI&gt;
          &lt;/Build&gt;
        &lt;/Release&gt;
      &lt;/Build_details&gt;
  
  How can i insert below chunk of data by asking release no to user and insert below it :
      &lt;Build number="230"&gt;
        &lt;OMS&gt;
          &lt;Build_path&gt;ST_OMS_909908&lt;/Build_path&gt;
          &lt;Pc_version&gt;8031.25.65&lt;/Pc_version&gt;
        &lt;/OMS&gt;
        &lt;OMNI&gt;
          &lt;Build_path&gt;ST_OMNI_798798789789&lt;/Build_path&gt;
        &lt;/OMNI&gt;
      &lt;/Build&gt;
  </code></pre>
  
  <p>I need to search a particular release and then add details to it.Please help
  i am not unable to traverse xml to find a particular release</p>