def supress_nonlocal_image_warn():
    import sphinx.environment
    sphinx.environment.BuildEnvironment.warn_node = _supress_nonlocal_image_warn

def _supress_nonlocal_image_warn(self, msg, node):
    from docutils.utils import get_source_line

    if not msg.startswith('nonlocal image URI found:'):
        self._warnfunc(msg, '%s:%s' % get_source_line(node))



if __name__ == '__main__':
    checkDependencies()