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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 sphinx(self):
 """Basic docstring formatted for Sphinx docs"""

        if callable(self.default):
            default_val = self.default()
            default_str = 'new instance of {}'.format(
                default_val.__class__.__name__
            )
        else:
            default_val = self.default
            default_str = '{}'.format(self.default)
        try:
            if default_val is None or default_val is undefined:
                default_str = ''
            elif len(default_val) == 0:                                        #pylint: disable=len-as-condition
                default_str = ''
            else:
                default_str = ', Default: {}'.format(default_str)
        except TypeError:
            default_str = ', Default: {}'.format(default_str)

        prop_doc = super(Property, self).sphinx()
        return '{doc}{default}'.format(doc=prop_doc, default=default_str)