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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 setup_docstring_style_convention(self, text):
 """Handle convention changes."""

        if text == 'Custom':
            self.docstring_style_select.label.setText(
                _("Show the following errors:"))
            self.docstring_style_ignore.label.setText(
                _("Ignore the following errors:"))
        else:
            self.docstring_style_select.label.setText(
                _("Show the following errors in addition "
                  "to the specified convention:"))
            self.docstring_style_ignore.label.setText(
                _("Ignore the following errors in addition "
                  "to the specified convention:"))