如何使用python从本地xml文件中提取特定的xml标签？

Question

I'm pretty new to interacting with xml, python, and scraping data so bear with me please: I've got an xml file with my notes saved from evernote. I have been able to load BeautifulSoup and lxml into my python environment. I have also been able to load the xml file and print

Heres my code up until print:

from bs4 import BeautifulSoup
from xml.dom.minidom import parseString
file = open('myNotes.xml','r')
data = file.read()
dom = parseString(data)
print data.toxml()

I didn't include the actual printed file as it contains lots of base 64 code.

What I am trying to accomplish is to extract select xml tags and print them to a new file... help!

Answer 1

This is how to use BeautifulSoup to print xml

from bs4 import BeautifulSoup

soup = BeautifulSoup(open('myNotes.xml','r'))
print(soup.prettify())

And to write it to a file:

with open("file.txt", "w") as f:
    f.write(soup.prettify())

Now, to extract all of a certain type of tag to a list:

# Extract all of the <a> tags:    
tags = soup.find_all('a')