代码篇XML格式转换为JSON格式（转为COCO格式）Python版

    import json
    import xml.etree.ElementTree as ET
    import os
    from lxml import etree
    from tqdm import tqdm
    import numpy as np
    
    
    
    class GEN_Annotations:
    def __init__(self, filename):
        self.root = etree.Element("annotation")
    
        child1 = etree.SubElement(self.root, "folder")
        child1.text = "VOC2007"
    
        child2 = etree.SubElement(self.root, "filename")
        child2.text = filename
    
        child3 = etree.SubElement(self.root, "source")
    
        child4 = etree.SubElement(child3, "annotation")
        child4.text =