Question

我（尝试）解析我的研究小组使用的软件的输出，到目前为止，我能够逐行迭代我需要的列表（好吧，这有点烦人的空在循环结束时列出[]）。当我尝试将每次迭代中的列表附加到一个大列表（列表列表）时，真正的问题就开始了，所以我可以在循环之外使用它。

到目前为止，这是代码：

vdf_file_path = "/home/henrique/Coding/Python/VEDA2XLSX/nq1a.vdf"

vdf_big_list = []
vdf_s_lines_string = """ """

with open(vdf_file_path, "r") as vdf_all_input_lines:
    for vdf_line in vdf_all_input_lines.readlines()[4:]:
        if "Frequencies" in vdf_line:
            break
        else:
            vdf_s_line_fixed = vdf_line.strip()
            vdf_s_lines_list = list(filter(None,vdf_s_line_fixed.split(" ")))
            vdf_big_list = vdf_big_list.append(vdf_s_lines_list)

（请原谅我乱糟糟的代码，我还在学习）

然后我收到错误：

Traceback (most recent call last):
  File "/home/henrique/Coding/Python/VEDA2XLSX/importvdf.py", line 12, in <module>
    vdf_big_list = vdf_big_list.append(vdf_s_lines_list)
AttributeError: 'NoneType' object has no attribute 'append'

尽管阅读了here提供的答案并尝试了几种方法，但我仍然无法理解问题是什么并修复它。

有任何建议吗？

数据样本：

abbreviation of: e:\documents\yyyy\yyyyyy-yyyyyy\camb3lyp\dmso\veda\nq1a.ved
IR spectrum from file: e:\Documents\yyyyyyy\yyyyyyyyy-yyyyyyyy\CAMB3LYP\dmso\Veda\nq1a.out
diagonality factor = 53.06   <EPm> = 49.71
    IR    RAMAN   CM-1
 245.54  730.41  3538.10   s1 100
   3.93  204.17  3237.13   s6 93
  11.13  477.42  3233.43   s3 14   s5 76
   3.44  136.83  3229.53   s3 -78   s5 15
 262.17  212.10  1672.05   s16 61
 117.64  169.79  1669.31   s17 -64   s41 14
   9.66   60.78  1657.86   s19 -59   s44 10
 981.59 1079.26  1642.51   s18 -56
1030.99  315.40  1578.03   s37 40   s42 10
 185.95   27.40  1559.81   s37 20   s42 -37
  55.61   10.42  1535.81   s39 -53   s63 14
   4.91    5.16  1507.94   s20 -37   s40 44
  59.12   24.29  1504.96   s47 69   s76 -23
  14.09   29.85  1492.35   s46 -71   s75 22
  19.97    9.49  1487.58   s48 86
  17.93    4.37  1469.24   s21 -39   s43 -27

Answer 1

append不会返回任何内容。最后一行应该是：

vdf_big_list.append(vdf_s_lines_list)

Answer 2

这种情况正在发生，因为vdf_big_list的返回为无。第一次追加时，vdf_big_list.append(vdf_s_lines_list)被指定为无。

将代码更改为

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/home/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
    utility.execute()
  File "/home/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 355, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home//venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 283, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 330, in execute
    output = self.handle(*args, **options)
  File "/home/app/management/commands/index_users.py", line 19, in handle
    bulk_indexing(User)
  File "/home/uapp/management/commands/index_users.py", line 12, in bulk_indexing
    bulk(client=es, actions=(m.indexing() for m in model.objects.all()))
  File "/home/venv/local/lib/python2.7/site-packages/elasticsearch/helpers/__init__.py", line 257, in bulk
    for ok, item in streaming_bulk(client, actions, **kwargs):
  File "/home//venv/local/lib/python2.7/site-packages/elasticsearch/helpers/__init__.py", line 180, in streaming_bulk
    client.transport.serializer):
  File "/home/venv/local/lib/python2.7/site-packages/elasticsearch/helpers/__init__.py", line 58, in _chunk_actions
    for action, data in actions:
  File "/home/app/management/commands/index_users.py", line 12, in <genexpr>
    bulk(client=es, actions=(m.indexing() for m in model.objects.all().iterator()))
  File "/home/app/models.py", line 137, in indexing
    obj.save(index="users")
  File "/home/venv/local/lib/python2.7/site-packages/elasticsearch_dsl/document.py", line 418, in save
    return meta['created']
KeyError: 'created'

AttributeError：＆＃39; NoneType＆＃39;对象没有属性＆＃39;追加＆＃39;无论

2 个答案: