按模式从列表中获取特定文件

Question

我有这份名单。我想做一个for循环，它将在列表中的这些文件的函数组合中使用。

我不知道如何使这些组合，对每一个“检查”，它将采取正确的组合。

如果不是用于循环的函数，则如下所示：

erase('check3_dwg_Polyline','check3_dwg_Polyline_feat_to_polyg_feat_to_line','output_name')

我试过的是：

这是名单。

li=['check3_dwg_Polyline', 'check2_dwg_Polyline', 
'check3_dwg_Polyline_feat_to_polyg',# this will not be needed to extracted
'check2_dwg_Polyline_feat_to_polyg',# >> >>
'check3_dwg_Polyline_feat_to_polyg_feat_to_line', 
 'check2_dwg_Polyline_feat_to_polyg_feat_to_line']

从以下几点开始：

a=[li[i:i+3] for i in range(0, len(li), 3)]

返回的地方：

[['check3_dwg_Polyline',
  'check2_dwg_Polyline',
  'check3_dwg_Polyline_feat_to_polyg'],
 ['check2_dwg_Polyline_feat_to_polyg',
  'check3_dwg_Polyline_feat_to_polyg_feat_to_line',
  'check2_dwg_Polyline_feat_to_polyg_feat_to_line']]

最后：

for base, base_f, base_line in a:
    print(base, base_line, base + "_output")

给予：

check3_dwg_Polyline  check3_dwg_Polyline_feat_to_polyg  check3_dwg_Polyline_output
check2_dwg_Polyline_feat_to_polyg  check2_dwg_Polyline_feat_to_polyg_feat_to_line  check2_dwg_Polyline_feat_to_polyg_output

其他方法：

base = [f for f in li if not f.endswith(("_polyg", "_to_line"))]
base_f = {f.strip("_feat_to_polyg"): f for f in li if f.endswith("_polyg")}
base_line = {f.strip("_feat_to_polyg_feat_to_line"): f for f in li if f.endswith("_to_line")}
[(b, base_f[b], base_line[b]) for b in base]

给予：

KeyError: 'check3_dwg_Polyline'

我尝试过对列表进行排序，但是当通过上面提到的过程时，它只是以一种不同的方式破坏了它。

理想的结果是

当尝试这样做时：

for base, base_f, base_line in a:
    print(base, base_line, base + "_output")

为了做到这一点：

check3_dwg_Polyline   check3_dwg_Polyline_feat_to_polyg_feat_to_line  check3_dwg_Polyline_output

check2_dwg_Polyline   check2_dwg_Polyline_feat_to_polyg_feat_to_line  check2_dwg_Polyline_output

像这样放进去的地方：

erase('check3_dwg_Polyline','check3_dwg_Polyline_feat_to_polyg_feat_to_line','output_name')

Answer 1

将列表划分为zip 2…中的check3块然后您可以执行for循环。

n = len(li) // 3
a = zip(*[li[i:i+n] for i in range(0, len(li), n)])

(pprint(list(a))将输出

[('check3_dwg_Polyline',
  'check3_dwg_Polyline_feat_to_polyg',
  'check3_dwg_Polyline_feat_to_polyg_feat_to_line'),
 ('check2_dwg_Polyline',
  'check2_dwg_Polyline_feat_to_polyg',
  'check2_dwg_Polyline_feat_to_polyg_feat_to_line')]