python 处理html中 class中存在空格 获取问题

html = """<h1 class='td p1'>
    0000000000000000000000000
</h1>
<h1 class='td p2'>
    123333333333333333333
</h1>
<h1 class='p2'>
    111111111111111111111111111111111111
</h1>"""

soup = BeautifulSoup(html, "lxml")
content = soup.find('h1', attrs={'class':'td p1'})

>>> print(content)
<h1 class="td p1">

0000000000000000000000000

</h1>