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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_urls(self):
 """Add our dashboard view to the admin urlconf. Deleted the default index."""

        from django.conf.urls import patterns, url
        from views import DashboardWelcomeView

        urls = super(AdminMixin, self).get_urls()
        del urls[0]
        custom_url = patterns(
            '',
            url(r'^$', self.admin_view(DashboardWelcomeView.as_view()), name="index")
        )

        return custom_url + urls