python xml 解析cdata

Question

我尝试从外汇日历中抓取新闻数据，但 xml 文件有一个小问题

def get_news_calendar():
    r = requests.get('http://www.forexfactory.com/ffcal_week_this.xml')
    soup = BeautifulSoup(r.text , 'lxml')
    events = soup.find_all('event')
    for event in events:
        print event.find('title').text, event.find('country').text, event.find('date'), event.find('time').text, event.find('impact').text, event.find('forecast').text, event.find('previous').text

输出:

Current Account EUR <date></date>    
Retail Sales m/m GBP <date></date>    
MPC Member Saunders Speaks GBP <date></date>    
Core CPI m/m CAD <date></date>    
CPI m/m CAD <date></date>    
Trimmed CPI y/y CAD <date></date>    
Median CPI y/y CAD <date></date>    
Common CPI y/y CAD <date></date>    
FOMC Member Kashkari Speaks USD <date></date>    
Flash Manufacturing PMI USD <date></date>    
Flash Services PMI USD <date></date>    
Existing Home Sales USD <date></date>    
IMF Meetings ALL <date></date>    
IMF Meetings ALL <date></date>    
Treasury Sec Mnuchin Speaks USD <date></date>    
French Presidential Election EUR <date></date>

示例 xml 文件:

<event>
    <title>German Flash Manufacturing PMI</title>
    <country>EUR</country>
    <date><![CDATA[04-21-2017]]></date>
    <time><![CDATA[7:30am]]></time>
    <impact><![CDATA[Medium]]></impact>
    <forecast><![CDATA[58.1]]></forecast>
    <previous><![CDATA[58.3]]></previous>
</event> 

如何打印 cdata 的值？

Answer 1

您似乎弄错了解析器的名称。您正在解析 XML 文档，因此需要使用 lxml-xml 而不是 lxml。

尝试更换

soup = BeautifulSoup(r.text , 'lxml')

与

soup = BeautifulSoup(r.text , 'lxml-xml')

对 get_news_calendar 函数进行此更改后，我在示例 XML 文件上运行它时得到以下输出:

German Flash Manufacturing PMI EUR <date>04-21-2017</date> 7:30am Medium 58.1 58.3