将字典项目插入字典列表中

Question

I have a list adImageList of dictionary items in following form:

[{'Image_thumb_100x75': 'https://cache.domain.com/mmo/7/295/170/227_174707044_thumb.jpg',
  'Image_hoved_400x300': 'https://cache.domain.com/mmo/7/295/170/227_174707044_hoved.jpg',
  'Image_full_800x600': 'https://cache.domain.com/mmo/7/295/170/227_174707044.jpg'},
 {'Image_thumb_100x75': 'https://cache.domain.com/mmo/7/295/170/227_1136648194_thumb.jpg',
  'Image_hoved_400x300': 'https://cache.domain.com/mmo/7/295/170/227_1136648194_hoved.jpg',
  'Image_full_800x600': 'https://cache.domain.com/mmo/7/295/170/227_1136648194.jpg'},
 {'Image_thumb_100x75': 'https://cache.domain.com/mmo/7/295/170/227_400613427_thumb.jpg',
  'Image_hoved_400x300': 'https://cache.domain.com/mmo/7/295/170/227_400613427_hoved.jpg',
  'Image_full_800x600': 'https://cache.domain.com/mmo/7/295/170/227_400613427.jpg'}]

I have iterator which suppose to add local URL under each image record after fetching it from web (fetching part works ok). So I'm using following code to append local URL to existing dictionary items:

 for i, d in enumerate(adImageList):
                file_name_thumb = '0{}_{}_{}'.format(i, page_title,'_thumb_100x75.jpg')
                urllib.request.urlretrieve(d['Image_thumb_100x75'], file_name_thumb)
                local_path_thumb = dir_path+file_name_thumb
                adImageList.insert[i](1,{'Image_thumb_100x75_local_path_thumb':local_path_thumb}) # not working

                file_name_hoved = '0{}_{}_{}'.format(i, page_title,'_hoved_400x300.jpg')
                urllib.request.urlretrieve(d['Image_hoved_400x300'], file_name_hoved)
                local_path_hoved = dir_path+file_name_hoved
                adImageList.insert[i](3,{'Image_hoved_400x300_local_path_hoved':local_path_hoved}) # not working

                file_name_full = '0{}_{}_{}'.format(i, page_title,'_full_800x600.jpg')
                urllib.request.urlretrieve(d['Image_full_800x600'], file_name_full)
                local_path_full = dir_path+file_name_full
                adImageList.insert[i](5,{'Image_full_800x600_local_path_full':local_path_full}) # not working

Idea is to extend dict items in following manner which also explains numbers 1,3 and 5 in my code

{'Image_thumb_100x75': 'https://cache.domain.com/mmo/7/295/170/227_174707044_thumb.jpg',
  'Image_thumb_100x75_local_path_thumb':local_path_thumb #1,
  'Image_hoved_400x300': 'https://cache.domain.com/mmo/7/295/170/227_174707044_hoved.jpg',
  'Image_hoved_400x300_local_path_hoved':local_path_hoved #3
  'Image_full_800x600': 'https://cache.domain.com/mmo/7/295/170/227_174707044.jpg',
  'Image_full_800x600_local_path_full':local_path_full #5}

But it's giving me error:

TypeError: 'builtin_function_or_method' object is not subscriptable

Answer 1

Most likely here's what you had in mind:

adImageList[i]['Image_thumb_100x75_local_path_thumb']=local_path_thumb

This adds key 'Image_thumb_100x75_local_path_thumb' to the i th dictionary on the list and sets its value to local_path_thumb . The purpose of 1,3,5 is still unclear.

Answer 2

python stack traces give line numbers for a reason, but my guess is this line:

adImageList.insert[i]

insert is a method