如何在python中解析xml？

Question

I have this xml file:

<?xml version="1.0" encoding="utf-8" ?>
<srl>

<role>V</role><txt>Representava</txt>
<role>A2</role><txt>ela</txt>
<role>A1</role>
<txt>uma jibóia
    <role>A0</role><txt>que</txt>
    <role>V</role><txt>engolia</txt>
    <role>A1</role><txt>uma fera</txt>
</txt>
</srl>

How do I extract just this block in python? I'm using Beautiful Soup.

<txt>uma jibóia
    <role>A0</role><txt>que</txt>
    <role>V</role><txt>engolia</txt>
    <role>A1</role><txt>uma fera</txt>
</txt>

I tried this:

soup = bs(open(xml, 'r'), 'lxml')
texts = soup.find_all('txt')

for t in texts:
    print t.text

Answer 1

I solved it:

for t in texts:
    if len(t.contents) > 1:
       print t