python3-将xml文件转成json文件

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from xml.etree import ElementTree as et import json def readxml_et():     tree = et.ElementTree(file="D:\\vscode\\xml2json\\Annotations\\timg.xml")     root = tree.getroot()     A = dict()     listbigoption=[]     for child_root in root:         if child_root.tag == 'filename':             imagePath = child_root.text         if child_root.tag == 'object':             listobject=dict()             for xylabel in child_root:                 if xylabel.tag == 'name':                     label = xylabel.text                                    if xylabel.tag == 'polygon':                     listpoints=[]                     for pt in xylabel:                         if pt.tag == 'pt':                             listxy = []                             for i in pt:                                                                if i.tag == 'x':                                     listxy.append(int(i.text))                                 if i.tag == 'y':                                     listxy.append(int(i.text))                                 listpoints.append(listxy)                     listobject['points'] = listpoints                     listobject['line_color'] = 'null'                     listobject['label'] = label                     listobject['fill_color'] = 'null'                     listbigoption.append(listobject)                 # print(listbigoption)     A['lineColor'] = [0,255,0,128]     A['imageData'] = 'imageData'     A['fillColor'] = [255,0,0,128]     A['imagePath'] = imagePath     A['shapes'] = listbigoption     A['flags'] = {}     with open('1.json','w') as f:         json.dump(A,f)   readxml_et()

　　同事给了我一个xml文件让我转成他想要的json格式

代码用了好多for和if，用for循环来找子节点，先完成任务，得改进，还不知道怎么改。