小编这次要用代码详解如何将python代码xml转txt，文章内容丰富，感兴趣的小伙伴可以来了解一下，希望大家阅读完这篇文章之后能够有所收获。
为了训练深度学习模型，经常要整理大量的标注数据，需统一不同格式的标注数据，一般情况下习惯读取TXT格式的数据。但实际中经常遇到XML格式的标注数据，在此举例：1.读取XML标注数据；2.写入TXT文件。
XML标注数据如下
<annotation verified="no"> <folder>suE</folder> <filename>Drivingrecord_001</filename> <path>C:\Desktop\Drivingrecord_001.jpg</path> <source> <database>Unknown</database> </source> <size> <width>1920</width> <height>1080</height> <depth>3</depth> </size> <segmented>0</segmented> <object> <name>苏E*****-蓝-1-白,灰-大众-上海大众-桑塔纳-尚纳</name> <flag>polygon</flag> <pose>Unspecified</pose> <truncated>0</truncated> <difficult>0</difficult> <bndbox> <leftTopx>170</leftTopx> <leftTopy>704</leftTopy> <rightTopx>167</rightTopx> <rightTopy>729</rightTopy> <rightBottomx>242</rightBottomx> <rightBottomy>735</rightBottomy> <leftBottomx>243</leftBottomx> <leftBottomy>710</leftBottomy> </bndbox> </object> <object> <name>苏E*****-蓝-1-黄-雷克萨斯-雷克萨斯(进口)-雷克萨斯RX</name> <flag>polygon</flag> <pose>Unspecified</pose> <truncated>0</truncated> <difficult>0</difficult> <bndbox> <leftTopx>733</leftTopx> <leftTopy>721</leftTopy> <rightTopx>733</rightTopx> <rightTopy>759</rightTopy> <rightBottomx>881</rightBottomx> <rightBottomy>760</rightBottomy> <leftBottomx>882</leftBottomx> <leftBottomy>722</leftBottomy> </bndbox> </object> <object> <name>苏*****-蓝-1-黑-宝马-宝马(进口)-宝马7系</name> <flag>polygon</flag> <pose>Unspecified</pose> <truncated>0</truncated> <difficult>0</difficult> <bndbox> <leftTopx>1274</leftTopx>
<leftTopy>657</leftTopy> <rightTopx>1274</rightTopx> <rightTopy>671</rightTopy> <rightBottomx>1325</rightBottomx> <rightBottomy>670</rightBottomy> <leftBottomx>1326</leftBottomx> <leftBottomy>656</leftBottomy> </bndbox> </object> <object> <name>苏*****-蓝-1-灰-标致-东风标致-标致307</name> <flag>polygon</flag> <pose>Unspecified</pose> <truncated>0</truncated> <difficult>0</difficult> <bndbox> <leftTopx>1609</leftTopx> <leftTopy>658</leftTopy> <rightTopx>1611</rightTopx> <rightTopy>671</rightTopy> <rightBottomx>1659</rightBottomx> <rightBottomy>669</rightBottomy> <leftBottomx>1657</leftBottomx> <leftBottomy>656</leftBottomy> </bndbox> </object> </annotation>
在此，我们只需要图片名filename，和每个object的坐标（四个点的坐标）
Drivingrecord_001.jpg 170 704 167 729 242 735 243 710 733 721 733 759 881 760 882 722 1274 657 1274 671 1325 670 1326 656 1609 658 1611 671 1659 669 1657 656
利用xml.dom.*模块，文件对象模块DOM在读取XML文件时，一次读取整个文件，将其所有数据保存在一个树结构中，此时，可利用DOM的各种函数来读取目标数据。在此，利用xml.dom.minidom解析XML文件。
并将目标数据写入TXT文档。
# -*- coding: utf-8 -*-
"""
Created on Fri Mar 2 15:36:44 2018
@author: gg
"""
import xml.dom.minidom
import os
save_dir = 'D:\plate_train'
if not os.path.exists(save_dir):
os.mkdir(save_dir)
f = open(os.path.join(save_dir, 'landmark.txt'), 'w')
DOMTree = xml.dom.minidom.parse('D:\plate_train\label\Drivingrecord_001.xml')
annotation = DOMTree.documentElement
filename = annotation.getElementsByTagName("filename")[0]
imgname = filename.childNodes[0].data+'.jpg'
print(imgname)
objects = annotation.getElementsByTagName("object")
loc = [imgname] #文档保存格式：文件名 坐标
for object in objects:
bbox = object.getElementsByTagName("bndbox")[0]
leftTopx = bbox.getElementsByTagName("leftTopx")[0]
lefttopx = leftTopx.childNodes[0].data
print(lefttopx)
leftTopy = bbox.getElementsByTagName("leftTopy")[0]
lefttopy = leftTopy.childNodes[0].data
print(lefttopy)
rightTopx = bbox.getElementsByTagName("rightTopx")[0]
righttopx = rightTopx.childNodes[0].data
print(righttopx)
rightTopy = bbox.getElementsByTagName("rightTopy")[0]
righttopy = rightTopy.childNodes[0].data
print(righttopy)
rightBottomx = bbox.getElementsByTagName("rightBottomx")[0]
rightbottomx = rightBottomx.childNodes[0].data
print(rightbottomx)
rightBottomy = bbox.getElementsByTagName("rightBottomy")[0]
rightbottomy = rightBottomy.childNodes[0].data
print(rightbottomy)
leftBottomx = bbox.getElementsByTagName("leftBottomx")[0]
leftbottomx = leftBottomx.childNodes[0].data
print(leftbottomx)
leftBottomy = bbox.getElementsByTagName("leftBottomy")[0]
leftbottomy = leftBottomy.childNodes[0].data
print(leftbottomy)
loc = loc + [lefttopx, lefttopy, righttopx, righttopy, rightbottomx, rightbottomy, leftbottomx, leftbottomy]
for i in range(len(loc)):
f.write(str(loc[i])+' ')
f.write('\t\n')
f.close()
看完这篇关于用代码详解如何将python代码xml转txt的文章，如果觉得文章内容写得不错的话，可以把它分享出去给更多人看到。
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
