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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 paths(self, value):
 """Change of paths in adding it in watching list."""


        if value is None:
            value = ()

        elif isinstance(value, string_types):
            value = (value, )

        self._paths = tuple(value)

        if self.autoconf:
            self.applyconfiguration()