解析XML并将其转换为数据帧的最佳方法

时间:2019-04-23 17:30:49

标签: python pandas xml-parsing

我有以下XML(它是一个示例):

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<HDR_DONNEES xmlns="http://ERABLE_HDR.com/ns1">
    <Dates>
        <Date valeur="14032019">
            <Depart ACR_DepartHTA="BDX" ACR_PosteSource="BDX" GdoDepart="V.LOTC0018" Nom_DepartHTA="BOURLANG" PS_DepartHTA="V.LOT" NomPosteSource="VILLELOT">
                <M H="1150" UTM="20850" ITM="94" IFg="0" UNB="1" INB="1"/>
            </Depart>
            <Depart ACR_DepartHTA="BDX" ACR_PosteSource="BDX" GdoDepart="V.LOTC0005" Nom_DepartHTA="MARCHE G" PS_DepartHTA="V.LOT" NomPosteSource="VILLELOT">
                <M H="1150" UTM="20850" ITM="41" IFg="0" UNB="1" INB="1"/>
            </Depart>
            <Depart ACR_DepartHTA="NTS" ACR_PosteSource="NTS" GdoDepart="PALLUC2703" Nom_DepartHTA="FROIDFON" PS_DepartHTA="PALLU" NomPosteSource="PALLUAU">
                <M H="1140" UTM="0" ITM="0" IFg="100" UNB="0" INB="1"/>
            </Depart>
        </Date>
    </Dates>
</HDR_DONNEES>

我怎样才能将此XML解析为一个数据帧以具有这种结构?

|-acrDeparthta:字符串(nullable = true)

|-acrPostesource:字符串(nullable = true)

|-gdodepart:字符串(nullable = true)

|-nomDeparthta:字符串(nullable = true)

|-psDeparthta:字符串(nullable = true)

|-nompostesource:字符串(nullable = true)

|-creationDate:字符串(nullable = true)

|-m:数组(nullable = true)

| |-元素:struct(containsNull = true)

| | |-h:字符串(nullable = true)

| | |-utm:字符串(nullable = true)

| | |-ufg:字符串(nullable = true)

| | |-itm:字符串(nullable = true)

| | |-ifg:字符串(nullable = true)

| | |-unb:字符串(nullable = true)

| | |-inb:字符串(nullable = true)

“ M”下面的任何属性都是“ M”数组的一部分。

if the structure isn't clear, here's a screen capture

任何帮助将不胜感激,谢谢!

编辑:

我尝试过:

import xml.etree.ElementTree as ET
tree = ET.parse('testtest.xml')
root = tree.getroot()

for child in root:
    print child.tag, child.attrib

但我得到的是:{http://ERABLE_HDR.com/ns1}日期{}

如果我在同一个循环中更深入地重复使用它

for child in child:
    print child.tag, child.attrib

我得到这个:{http://ERABLE_HDR.com/ns1}日期{'valeur':'14032019'}

它不断地..

1 个答案:

答案 0 :(得分:1)

我建议BeautifulSoup阅读器使用lxml(如果我正确理解了您的请求):

from bs4 import BeautifulSoup
import pandas as pd

xml=b"""\
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<HDR_DONNEES xmlns="http://ERABLE_HDR.com/ns1">
    <Dates>
        <Date valeur="14032019">
            <Depart ACR_DepartHTA="BDX" ACR_PosteSource="BDX" GdoDepart="V.LOTC0018" Nom_DepartHTA="BOURLANG" PS_DepartHTA="V.LOT" NomPosteSource="VILLELOT">
                <M H="1150" UTM="20850" ITM="94" IFg="0" UNB="1" INB="1"/>
            </Depart>
            <Depart ACR_DepartHTA="BDX" ACR_PosteSource="BDX" GdoDepart="V.LOTC0005" Nom_DepartHTA="MARCHE G" PS_DepartHTA="V.LOT" NomPosteSource="VILLELOT">
                <M H="1150" UTM="20850" ITM="41" IFg="0" UNB="1" INB="1"/>
            </Depart>
            <Depart ACR_DepartHTA="NTS" ACR_PosteSource="NTS" GdoDepart="PALLUC2703" Nom_DepartHTA="FROIDFON" PS_DepartHTA="PALLU" NomPosteSource="PALLUAU">
                <M H="1140" UTM="0" ITM="0" IFg="100" UNB="0" INB="1"/>
            </Depart>
        </Date>
    </Dates>
</HDR_DONNEES>"""


soup = BeautifulSoup(xml,features="lxml")

data={}
for i,depart in enumerate(soup.find_all('depart')):
    data[i]=depart.attrs
    for m in depart.findChildren():
        data[i]['m']=list(m.attrs.values())

df=pd.DataFrame.from_dict(data, orient='index')
print(df)

返回:

  acr_departhta acr_postesource   gdodepart nom_departhta ps_departhta nompostesource                           m
0           BDX             BDX  V.LOTC0018      BOURLANG        V.LOT       VILLELOT  [1150, 20850, 94, 0, 1, 1]
1           BDX             BDX  V.LOTC0005      MARCHE G        V.LOT       VILLELOT  [1150, 20850, 41, 0, 1, 1]
2           NTS             NTS  PALLUC2703      FROIDFON        PALLU        PALLUAU     [1140, 0, 0, 100, 0, 1]
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