from BeautifulSoup import BeautifulStoneSoup
f = open('state1.xml').read()
S = BeautifulStoneSoup(f)
b = 7
S.n.find(text='0').replaceWith(str(b))
print S
Спасибо.
from BeautifulSoup import BeautifulStoneSoup
f = open('state1.xml').read()
S = BeautifulStoneSoup(f)
b = 7
S.n.find(text='0').replaceWith(str(b))
print S