删除嵌套列表中的双元素

Question

我有一个名为的嵌套 python 列表：[[[[['p'], ['q'], ['t'], ['u']], [['r'], ['s'], ['v'], ['w']]]], [[[['p'], ['q'], ['t'], ['w']], [['r'], ['s'], ['v'], ['u']]]], [[[['p'], ['q'], ['v'], ['u']], [['r'], ['s'], ['t'], ['w']]]], [[[['p'], ['q'], ['v'], ['w']], [['r'], ['s'], ['t'], ['u']]]], [[[['p'], ['s'], ['t'], ['u']], [['r'], ['q'], ['v'], ['w']]]], [[[['p'], ['s'], ['t'], ['w']], [['r'], ['q'], ['v'], ['u']]]], [[[['p'], ['s'], ['v'], ['u']], [['r'], ['q'], ['t'], ['w']]]], [[[['p'], ['s'], ['v'], ['w']], [['r'], ['q'], ['t'], ['u']]]], [[[['r'], ['q'], ['t'], ['u']], [['p'], ['s'], ['v'], ['w']]]], [[[['r'], ['q'], ['t'], ['w']], [['p'], ['s'], ['v'], ['u']]]], [[[['r'], ['q'], ['v'], ['u']], [['p'], ['s'], ['t'], ['w']]]], [[[['r'], ['q'], ['v'], ['w']], [['p'], ['s'], ['t'], ['u']]]], [[[['r'], ['s'], ['t'], ['u']], [['p'], ['q'], ['v'], ['w']]]], [[[['r'], ['s'], ['t'], ['w']], [['p'], ['q'], ['v'], ['u']]]], [[[['r'], ['s'], ['v'], ['u']], [['p'], ['q'], ['t'], ['w']]]], [[[['r'], ['s'], ['v'], ['w']], [['p'], ['q'], ['t'], ['u']]]]]在那个列表中，我把每个元素都加倍了。示例：[[[['p'], ['q'], ['t'], ['u']], [['r'], ['s'], ['v'], ['w']]]]是一样的[[[['r'], ['s'], ['v'], ['w']], [['p'], ['q'], ['t'], ['u']]]]如何使用列表理解删除双元素？我试图将列表转换为一组，但这不起作用。所需的输出应该是：[[[[['p'], ['q'], ['t'], ['u']], [['r'], ['s'], ['v'], ['w']]]], [[[['p'], ['q'], ['t'], ['w']], [['r'], ['s'], ['v'], ['u']]]], [[[['p'], ['q'], ['v'], ['u']], [['r'], ['s'], ['t'], ['w']]]], [[[['p'], ['q'], ['v'], ['w']], [['r'], ['s'], ['t'], ['u']]]], [[[['p'], ['s'], ['t'], ['u']], [['r'], ['q'], ['v'], ['w']]]], [[[['p'], ['s'], ['t'], ['w']], [['r'], ['q'], ['v'], ['u']]]], [[[['p'], ['s'], ['v'], ['u']], [['r'], ['q'], ['t'], ['w']]]], [[[['p'], ['s'], ['v'], ['w']], [['r'], ['q'], ['t'], ['u']]]]]谢谢

Answer 1

您可以使用每个子列表中的扁平值创建一个字典：

d = [[[[['p'], ['q'], ['t'], ['u']], [['r'], ['s'], ['v'], ['w']]]], [[[['p'], ['q'], ['t'], ['w']], [['r'], ['s'], ['v'], ['u']]]], [[[['p'], ['q'], ['v'], ['u']], [['r'], ['s'], ['t'], ['w']]]], [[[['p'], ['q'], ['v'], ['w']], [['r'], ['s'], ['t'], ['u']]]], [[[['p'], ['s'], ['t'], ['u']], [['r'], ['q'], ['v'], ['w']]]], [[[['p'], ['s'], ['t'], ['w']], [['r'], ['q'], ['v'], ['u']]]], [[[['p'], ['s'], ['v'], ['u']], [['r'], ['q'], ['t'], ['w']]]], [[[['p'], ['s'], ['v'], ['w']], [['r'], ['q'], ['t'], ['u']]]], [[[['r'], ['q'], ['t'], ['u']], [['p'], ['s'], ['v'], ['w']]]], [[[['r'], ['q'], ['t'], ['w']], [['p'], ['s'], ['v'], ['u']]]], [[[['r'], ['q'], ['v'], ['u']], [['p'], ['s'], ['t'], ['w']]]], [[[['r'], ['q'], ['v'], ['w']], [['p'], ['s'], ['t'], ['u']]]], [[[['r'], ['s'], ['t'], ['u']], [['p'], ['q'], ['v'], ['w']]]], [[[['r'], ['s'], ['t'], ['w']], [['p'], ['q'], ['v'], ['u']]]], [[[['r'], ['s'], ['v'], ['u']], [['p'], ['q'], ['t'], ['w']]]], [[[['r'], ['s'], ['v'], ['w']], [['p'], ['q'], ['t'], ['u']]]]]

def flatten(_d):

   return [[c for [c] in _d[0][0]], [c for [c] in _d[0][1]]]

def match(a, b):

  return all(c == d for c, d in zip(sorted(a), sorted(b)))

_d = {i:flatten(a) for i, a in enumerate(d)}

result = [a for i, a in enumerate(d) if not any(match(_d[i], _d[c]) for c in range(i))]

输出：

[[[[['p'], ['q'], ['t'], ['u']], [['r'], ['s'], ['v'], ['w']]]], 

 [[[['p'], ['q'], ['t'], ['w']], [['r'], ['s'], ['v'], ['u']]]], 

 [[[['p'], ['q'], ['v'], ['u']], [['r'], ['s'], ['t'], ['w']]]], 

 [[[['p'], ['q'], ['v'], ['w']], [['r'], ['s'], ['t'], ['u']]]], 

 [[[['p'], ['s'], ['t'], ['u']], [['r'], ['q'], ['v'], ['w']]]], 

 [[[['p'], ['s'], ['t'], ['w']], [['r'], ['q'], ['v'], ['u']]]], 

 [[[['p'], ['s'], ['v'], ['u']], [['r'], ['q'], ['t'], ['w']]]], 

 [[[['p'], ['s'], ['v'], ['w']], [['r'], ['q'], ['t'], ['u']]]]]