python Implementation of xml to json File Sample Code

xml. etree. ElementTree library using Python

Introduction of xml. etree. ElementTree Library

The xml. etree. ElementTree module implements a simple and efficient API for parsing and creating XML data. The xml. etree. ElementTree module is not secure against maliciously constructed data. If you need to resolve untrusted or unvalidated data, see XML Vulnerability.
References: https://docs. python. org/3. 6/library/xml. etree. elementtree. html

from xml.etree import ElementTree
import json

LISTTYPE = 1
DICTTYPE = 0

def getDictResults(res_dicts, iters):
  result_dicts = {}
  for iter in iters.getchildren():
    iterxml(iter, result_dicts)

  if result_dicts:
    res_dicts[iters.tag].update(result_dicts)

def getListResults(res_dicts, iters):
  result_lists = []
  for iter in iters.getchildren():
    result_dicts = {}
    iterxml(iter, result_dicts)
    result_lists.append(result_dicts.copy())
    del(result_dicts)
  
  if result_lists:
    if len(res_dicts[iters.tag].items()) == 0:
      res_dicts[iters.tag] = result_lists.copy()
    else:
      for resobj in result_lists:
        resobjkey = list(resobj.keys())[0]
        if res_dicts[iters.tag].get(resobjkey) == None:
          res_dicts[iters.tag].update(resobj)
        else:
          if type(res_dicts[iters.tag][resobjkey]) == list:
            res_dicts[iters.tag][resobjkey].append(resobj[resobjkey].copy())
          else:
            old_value = res_dicts[iters.tag][resobjkey]
            res_dicts[iters.tag][resobjkey] = []
            res_dicts[iters.tag][resobjkey].append(old_value)
            res_dicts[iters.tag][resobjkey].append(resobj[resobjkey].copy())

    del(result_lists)

def checkxmlchildrentype(iters):
  taglist = []
  for iter in iters.getchildren():
    taglist.append(iter.tag)

  if len(set(taglist)) == len(taglist):
    return DICTTYPE
  else:
    return LISTTYPE

def getResults(res_dicts, iters):
  if checkxmlchildrentype(iters):
    return getListResults(res_dicts, iters)
  else:
    return getDictResults(res_dicts, iters)

#@res_dicts  {}
def iterxml(iter, res_dicts):
  res_dicts[iter.tag] = {}

  if iter.attrib:
    for k,v in dict(iter.attrib).items():
      res_dicts[iter.tag].update({k : v})
  
  if iter.text is not None and iter.text.strip() != "":
    res_dicts[iter.tag].update({"__XmlTagText__" : iter.text.strip()})
  
  if iter.getchildren():
    getResults(res_dicts, iter)

def parserxmltojson(file_path):
  try:
    tree = ElementTree.parse(file_path)
  except Exception as e:
    #multi-byte encodings are not supported   Change the character set to utf-8 You can 
    #encoding specified in XML declaration is incorrect  xml encoding Character set of identity and file is different 
    #syntax error   Grammatical errors, garbled codes, etc. 
    #not well-formed (invalid token)   After the editor clicks, the character set is modified to ASCII Or the character set of the file itself and xml encoding Not identical 
    print("Parser {} Error, Errmsg: {}".format(file_path, e))
    return ""

  if tree is None:
    print("{} is None.".format(file_path))
    return ""

  root = tree.getroot()

  report = {}
  iterxml(root, report)
  #return getDictResults(root)

  return report

if __name__ == "__main__":
  jsonret = parserxmltojson("test.xml")
  with open("test.json", "w", encoding="utf-8") as fd:
    fd.write(json.dumps(jsonret, ensure_ascii=False, indent=4))
  print(json.dumps(jsonret, ensure_ascii=False, indent=4))

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