Can all small EBNF rules in Python be composed into a larger correct one?
<p>I found this rule  <a href="https://docs.python.org/3/reference/expressions.html#expression-lists" rel="nofollow noreferrer">here</a>,i just didn't figure out how <code>"*" or_expr</code> is equivalent as <code>starred_item</code> .If there is nothing wrong, what is it the problem that caused my code <code>a = 8;b = 2; *(a &gt;&gt; b), = (1,2,3)</code> to raise a exception,which said "SyntaxError: can't assign to operator"?</p>