Question

我有一个包含多个列的CSV文件。其中两列称为Namn（名称）（产品）和Alla bilder（所有图像）。一些产品有几个图像。这些图像插在“所有图像”下的各自行中：例如：

名称所有图像
Name1 Image1
Name2 Image2
Image2-1
Image2-2
Name3 Image3

我试图将属于一个产品的所有图像插入到第一个图像行中并用|分隔。这是我在朋友的帮助下管理的代码，但我只是不让它工作。（我下载了Python，并运行了.py脚本） - 没有任何反应。请注意我以前从未接触过Python。

import codecs, csv

def main():

    file_input = codecs.open('test.csv', 'r', 'utf-8-sig')
    dictreader = csv.DictReader(file_input, delimiter=',')

    main_rows = []
    fields = []
    temp_row = {}

    for row_item in dictreader:

        if len(fields) == 0:
            # fix the fields header...
            for field in row_item:
                fields.append(field)

        if row_item['Name'] == '':
            # this row probably only contains picture information...
            if 'Alla bilder' in row_item and row_item['Alla bilder'] != '':
                if 'Alla bilder' not in temp_row:
                    temp_row['Alla bilder'] = row_item['Alla bilder']
                elif temp_row['Alla bilder'] == '':
                    temp_row['Alla bilder'] = row_item['Alla bilder']
                else:
                    temp_row['Alla bilder'] = temp_row['Alla bilder'] + '|' + row_item['Alla bilder']
        else:
            # this seems to be a new product row...

            if len(temp_row) != 0:
                # there seems to be something to store....
                print('\nSTORING: ' + str(temp_row))
                main_rows.append(temp_row)
                temp_row = {}

            # print('\nNEW ROW: ' + str(row_item))
            temp_row = row_item

    if len(temp_row) != 0:
        # there seems to be something to store....
        print('\nSTORING: ' + str(temp_row))
        main_rows.append(temp_row)

    file_output = codecs.open('test2.csv', 'w', 'utf-8-sig')
    dictwriter = csv.DictWriter(file_output, delimiter=',', fieldnames=fields)
    dictwriter.writerows(main_rows)


if _name_ == "_main_":
    main()
else:
    print('This file was called from another class...')

Answer 1

从控制台启动脚本时会出现什么错误或消息？

尝试更改

if _name_ == "_main_":
   main()
else:
   print('This file was called from another class...')

有关

if __name__ == "__main__":
   main()
else:
   print('This file was called from another class...')

这是我看到的唯一错误（如果我没错，它是__name__，而不是_name_）。改变对我有用。使用此输入：

Name,Alla bilder
Name1,Image1
Name2,Image2
,Image2-1
,Image2-2
Name3,Image3

我得到了下一个结果：

Name1,Image1
Name2,Image2|Image2-1|Image2-2
Name3,Image3

这是你的问题吗？

如果Name-row为空CSV，则将行收集到一行中

1 个答案: