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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 show_help(self, wizard_step):
 """Set wizard step and show the help text."""

        self.wizard_step = wizard_step

        header = html_header()
        footer = html_footer()

        content = header

        message = self.wizard_step.help()

        content += message.to_html()
        content += footer

        self.help_web_view.setHtml(content)

        # Store buttons' state
        self.next_button_state = self.parent.pbnNext.isEnabled()
        self.back_button_state = self.parent.pbnBack.isEnabled()

        # Disable those buttons
        self.parent.pbnNext.setEnabled(False)
        self.parent.pbnBack.setEnabled(False)