5-replace-xml-label.py

# coding=utf-8
import os
import os.path
import xml.dom.minidom
 
path = 'Annotations'
files = os.listdir(path)
s = []
for xmlFile in files:
    portion = os.path.splitext(xmlFile)
    if not os.path.isdir(xmlFile):
 
        dom = xml.dom.minidom.parse(os.path.join(path, xmlFile))

        root = dom.documentElement
        name = root.getElementsByTagName('name')
        #labels 
        for i in range(len(name)):
            if name[i].firstChild.data == 'anquanmao': #old label name 
                name[i].firstChild.data = 'hat' # new label name
            elif name[i].firstChild.data == 'head': #old label name 
                name[i].firstChild.data = 'person' # new label name            
    with open(os.path.join(path, xmlFile), 'w') as fh:
        dom.writexml(fh)
        print('replace filename OK!')