<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def contents(self):
 """Return the contents as string with the original encoding."""

        if not IS_PY2 and isinstance(self.byte_contents, bytes):
            return self.byte_contents.decode(
                self.encoding or locale.getpreferredencoding(False),
                errors=self.errors)
        return self.byte_contents