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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - generate-inspector-gresource-manifest.py uses the wrong python interpreter"
   href="https://bugs.webkit.org/show_bug.cgi?id=153712">153712</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>generate-inspector-gresource-manifest.py uses the wrong python interpreter
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>WebKit Gtk
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>jeremyhu&#64;apple.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>bugs-noreply&#64;webkitgtk.org
          </td>
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        <pre>Originally reported at <a href="https://trac.macports.org/ticket/50472">https://trac.macports.org/ticket/50472</a>

configure finds an appropriate version of python:

:info:configure -- Found PythonInterp: /opt/local/bin/python2.7 (found suitable version &quot;2.7.11&quot;, minimum required is &quot;2.7.0&quot;) 

but the build still fails when executing the generate-inspector-gresource-manifest.py script when the first python executable in $PATH is version 2.6:

:info:build [ 86%] Generating ../../DerivedSources/webkit2gtk/InspectorGResourceBundle.xml
:info:build cd /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/build/Source/WebKit2 &amp;&amp; /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/webkitgtk-2.11.4/Tools/gtk/generate-inspector-gresource-manifest.py --output=/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/build/DerivedSources/webkit2gtk/InspectorGResourceBundle.xml 
...
:info:build Traceback (most recent call last):
:info:build   File &quot;/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/webkitgtk-2.11.4/Tools/gtk/generate-inspector-gresource-manifest.py&quot;, line 18, in &lt;module&gt;
:info:build     import argparse
:info:build ImportError: No module named argparse
:info:build make[2]: *** [DerivedSources/webkit2gtk/InspectorGResourceBundle.xml] Error 1

The issue is that the script is executed directly with a hash-bang of &quot;#!/usr/bin/env python&quot; whereas other python scripts are executed using the configured interpreter, eg:

:info:build cd /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/webkitgtk-2.11.4/Source/WebKit2 &amp;&amp; /opt/local/bin/python2.7 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/webkitgtk-2.11.4/Source/WebKit2/Scripts/generate-messages-header.py WebProcess/WebPage/WebPage.messages.in &gt; /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_webkit2-gtk/webkit2-gtk/work/build/DerivedSources/WebKit2/WebPageMessages.h</pre>
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