xml分析Python 3和Beautiful Soup第2部分

Question

這是我之前的問題的第二部分（ 使用Python3和BeautifulSoup解析xml文件 ）。

考慮到它們的XML結構不同，我想知道如何解析以下列表。 另外，我需要區分單個xml文件中的不同列表（或“投票標題”。我可以搜索“ results”元素，但是該元素存在於文件的3個單獨的列表中。

第一個投票標題xml列表使用此代碼來提取數據。 “ numplayers = True”參數將此列表與其他兩個列表區分開，但是結果行中沒有這些屬性。

for result in soup.find_all('results', numplayers = True):
    numplayers = result['numplayers']
    best = result.find('result', {'value': 'Best'})['numvotes']
    recommended = result.find('result', {'value': 'Recommended'})['numvotes']
    not_recommended = result.find('result', {'value': 'Not Recommended'})['numvotes']
    print (numplayers, best, recommended, not_recommended)

我似乎無法弄清楚如何為以下兩個xml列表編寫類似於此代碼的內容。 謝謝。

<poll title="Language Dependence" name="language_dependence" totalvotes="32">
    <results>
        <result value="No necessary in-game text" numvotes="32" level="1"/>
        <result value="Some necessary text - easily memorized or small crib sheet" numvotes="0" level="2"/>
        <result value="Moderate in-game text - needs crib sheet or paste ups" numvotes="0" level="3"/>
        <result value="Extensive use of text - massive conversion needed to be playable" numvotes="0" level="4"/>
        <result value="Unplayable in another language" numvotes="0" level="5"/>
    </results>
</poll>
<poll title="User Suggested Player Age" name="suggested_playerage" totalvotes="32">
    <results>
        <result value="2" numvotes="0"/>
        <result value="3" numvotes="0"/>
        <result value="4" numvotes="0"/>
        <result value="5" numvotes="1"/>
        <result value="6" numvotes="6"/>
        <result value="8" numvotes="15"/>
        <result value="10" numvotes="10"/>
        <result value="12" numvotes="0"/>
        <result value="14" numvotes="0"/>
        <result value="16" numvotes="0"/>
        <result value="18" numvotes="0"/>
        <result value="21 and up" numvotes="0"/>
    </results>
</poll>

我認為這應該適用於語言依賴列表，但事實並非如此。

for result in soup.find_all('result',level=True):
    level = result['level']
    None = result.find('result', {'level': '1'})['numvotes']
    Some = result.find('result', {'level': '2'})['numvotes']
    Mod = result.find('result', {'level': '3'})['numvotes']
    Ext = result.find('result', {'level': '4'})['numvotes']
    Unp = result.find('result', {'level': '5'})['numvotes']

Answer 1

您必須使用兩種不同的條件，請參見下面的代碼。

from bs4 import BeautifulSoup
xml = """<poll title="Language Dependence" name="language_dependence" totalvotes="32">
    <results>
        <result value="No necessary in-game text" numvotes="32" level="1"/>
        <result value="Some necessary text - easily memorized or small crib sheet" numvotes="0" level="2"/>
        <result value="Moderate in-game text - needs crib sheet or paste ups" numvotes="0" level="3"/>
        <result value="Extensive use of text - massive conversion needed to be playable" numvotes="0" level="4"/>
        <result value="Unplayable in another language" numvotes="0" level="5"/>
    </results>
</poll>
<poll title="User Suggested Player Age" name="suggested_playerage" totalvotes="32">
    <results>
        <result value="2" numvotes="0"/>
        <result value="3" numvotes="0"/>
        <result value="4" numvotes="0"/>
        <result value="5" numvotes="1"/>
        <result value="6" numvotes="6"/>
        <result value="8" numvotes="15"/>
        <result value="10" numvotes="10"/>
        <result value="12" numvotes="0"/>
        <result value="14" numvotes="0"/>
        <result value="16" numvotes="0"/>
        <result value="18" numvotes="0"/>
        <result value="21 and up" numvotes="0"/>
    </results>
</poll>"""
soup = BeautifulSoup(xml,'lxml')
for i in soup.find_all('poll',{'name':'language_dependence'})[0].find_all('result'):
    value = i['value']
    numvotes = i['numvotes']
    level = i['level']
    print('Value:',value,'\n','Numvotes:',numvotes,'\n','Level:',level)
print('--------------------------------------------')   
for i in soup.find_all('poll',{'name':'suggested_playerage'})[0].find_all('result'):
    value = i['value']
    numvotes = i['numvotes']
    print('Value:',value,'\n','Numvotes:',numvotes)

產量

Value: No necessary in-game text
 Numvotes: 32
 Level: 1
Value: Some necessary text - easily memorized or small crib sheet
 Numvotes: 0
 Level: 2
Value: Moderate in-game text - needs crib sheet or paste ups
 Numvotes: 0
 Level: 3
Value: Extensive use of text - massive conversion needed to be playable
 Numvotes: 0
 Level: 4
Value: Unplayable in another language
 Numvotes: 0
 Level: 5
--------------------------------------------
Value: 2
 Numvotes: 0
Value: 3
 Numvotes: 0
Value: 4
 Numvotes: 0
Value: 5
 Numvotes: 1
Value: 6
 Numvotes: 6
Value: 8
 Numvotes: 15
Value: 10
 Numvotes: 10
Value: 12
 Numvotes: 0
Value: 14
 Numvotes: 0
Value: 16
 Numvotes: 0
Value: 18
 Numvotes: 0
Value: 21 and up
 Numvotes: 0