根据关键字从Python字典中 Select i+4个元素

让我们将您的字典转换为带有索引的元组列表.

>>> lst = list(enumerate(ip_dict.items()))
>>> lst
[(0, ('doc_1', 'ADMINISTRATION LIABILITY COVERAGE PART CG7023 1096 EXCL-ASBESTOS')), 
 (1, ('doc_2', 'DIRECT BILL L7F6 20118 INSURED COPY ACP GLDO 7285650787 919705952 43 0001404')), 
 (2, ('doc_3', 'What Contractor Additional Insured LIABILITY CG 20 10 04 13 THIS ENDORSEMENT CHANGES')), 
 (3, ('doc_4', 'That portion of "your work" out of which the 1. Required by the contract or agreement')), 
 (4, ('doc_5', 'LIABILITY CG 20 10 04 13 Contractor Additional Insured THIS ENDORSEMENT CHANGES THE POLICY')), 
 (5, ('doc_6', 'That portion of "your work" out of which the 1. Contractor Additional Insured Required')), 
 (6, ('doc_7', 'LIABILITY CG 20 26 04 13 THIS ENDORSEMENT CHANGES THE POLICY.')), 
 (7, ('doc_8', 'COMMERCIAL GENERAL LIABILITY CG 21 87 0115 THIS ENDORSEMENT CHANGES THE POLICY.')), 
 (8, ('doc_9', 'Page 2 of 2 ACP GLDO7285650787 L7F6 20118 CG 21 87 01 15 B. The following definitions are added')), 
 (9, ('doc_10', 'POLICY NUMBER: THIS ENDORSEMENT CHANGES THE POLICY. COMMERCIAL GENERAL LIABILITY CG 25 03 05 09 ')), 
 (10, ('doc_11', 'Page 2 of 2 ACP GLDO7285650787 L7F6 20118 CG 25 03 05 09 B'))]

现在，获取找到关键字的所有索引.

>>> idxs = [i for i, x in lst if 'Contractor Additional Insured' in x[1]]
>>> idxs
[2, 4, 5]

现在，我们可以使用集合理解来获得每个指数的4个元素内的指数.

>>> {j 
...  for i in idxs 
...  for j in range(i, i+5)}
{2, 3, 4, 5, 6, 7, 8, 9}

然后进行超过lst次的词典理解，以判断该集合中的成员.

>>> {v[0]: v[1] 
...  for i, v in lst 
...  if i in {j for i in idxs for j in range(i, i+4)}}
{'doc_3': 'What Contractor Additional Insured LIABILITY CG 20 10 04 13 THIS ENDORSEMENT CHANGES', 
 'doc_4': 'That portion of "your work" out of which the 1. Required by the contract or agreement',
 'doc_5': 'LIABILITY CG 20 10 04 13 Contractor Additional Insured THIS ENDORSEMENT CHANGES THE POLICY',
 'doc_6': 'That portion of "your work" out of which the 1. Contractor Additional Insured Required',
 'doc_7': 'LIABILITY CG 20 26 04 13 THIS ENDORSEMENT CHANGES THE POLICY.',
 'doc_8': 'COMMERCIAL GENERAL LIABILITY CG 21 87 0115 THIS ENDORSEMENT CHANGES THE POLICY.',
 'doc_9': 'Page 2 of 2 ACP GLDO7285650787 L7F6 20118 CG 21 87 01 15 B. The following definitions are added',
 'doc_10': 'POLICY NUMBER: THIS ENDORSEMENT CHANGES THE POLICY. COMMERCIAL GENERAL LIABILITY CG 25 03 05 09 '}