为什么我总是让孩子超出范围错误?

时间:2019-05-21 19:05:42

标签: python xml csv

我正在使用此python脚本将xml转换为csv:

contentSize

当我在xml上运行它时,如下所示:

import os
import glob
import pandas as pd
import xml.etree.ElementTree as ET


def xml_to_csv(path):
    xml_list = []
    for xml_file in glob.glob(path + '/*.xml'):
        tree = ET.parse(xml_file)
        root = tree.getroot()
        for member in root.findall('object'):
            value = (root.find('filename').text,
                     int(root.find('size')[0].text),
                     int(root.find('size')[1].text),
                     member[0].text,
                     int(member[4][0].text),
                     int(member[4][1].text),
                     int(member[4][2].text),
                     int(member[4][3].text),
                     int(member[4][4].text)
                     )
            xml_list.append(value)
    column_name = ['filename', 'width', 'height', 'class', 'xmin', 'ymin', 'xmax', 'ymax']
    xml_df = pd.DataFrame(xml_list, columns=column_name)
    return xml_df


def main():
    for directory in ['train', 'test']:
        image_path = os.path.join(os.getcwd(), 'papers/{}'.format(directory))
        xml_df = xml_to_csv(image_path)
        xml_df.to_csv('data/{}_labels.csv'.format(directory), index=None)
        print('Successfully converted xml to csv.')


main()

我不断得到这个

  

int(member [4] [0] .text),IndexError:子索引超出范围'错误

谁能帮助我找出问题所在?我不确定为什么错误不断弹出。

1 个答案:

答案 0 :(得分:1)

根据示例XML, bundbox 元素位于节点5而不是4处。顺便说一下,不需要使用pandas进行csv迁移。考虑csv(Python 3的内置模块)。下面还显示了可以对节点使用编号索引,[##]find() xmin ymin xmin xmax

# ALL STANDARD LIBRARY MODULES
import os, glob, csv
import xml.etree.ElementTree as ET

def xml_to_csv(path):

    with open("Output.csv", "w") as f:
        cw = csv.writer(f, lineterminator="\n")
        cw.writerow(['filename', 'width', 'height', 'class', 'xmin', 'ymin', 'xmax', 'ymax'])

        for xml_file in glob.glob(path + '/*.xml'):
            tree = ET.parse(xml_file)
            root = tree.getroot()

            for member in root.findall('object'):
                value = (root.find('filename').text,
                         int(root.find('size')[0].text),
                         int(root.find('size')[1].text),
                         member[0].text,
                         int(member[5][0].text),
                         int(member[5][1].text),
                         int(member[5].find('ymin').text),
                         int(member[5].find('ymax').text)
                        )
                cw.writerow(value)