我需要从一个大的sitemap XML文件中选择数据来获得如下信息:
(title,img,link,txt)
(title,img,link,txt)
(title,img,link,txt)
但是在测试我的代码时,我得到了一个错误:
# Traceback (most recent call last): File "./u2.py", line 91, in <module>
s.pluj(x,i) File "./u2.py", line 46, in pluj
tab.append = (xx.group(1)) AttributeError: 'list' object attribute 'append' is read-only
这是我的代码:
#!/usr/bin/env python
import linecache
import re
def w2(arg1):
wiersz = linecache.getline('a.xml', arg1)
return wiersz
count = len(open('a.xml', 'rU').readlines())
#print count
class rep:
# tab = []
def pluj(self, linia, nr):
adres1 = r'\<loc\>\<\!\[CDATA\[(.*?)\]\]\>\<\/loc\>'
foto1 = r'\<image\:loc\>\<\!\[CDATA\[(.*?)\]\]\>\<\/image\:loc\>'
opis1 = r'\<image\:caption\>\<\!\[CDATA\[(.*?)\]\]\>\<\/image\:caption\>'
title1 = r'\<\image\:title\>\<\!\[CDATA\[(.*?)\]\]\>\<\/image\:title\>'
self.linia = linia
#print linia
tab = []
adres = re.compile(adres1)
foto = re.compile(foto1)
opis = re.compile(opis1)
title = re.compile(title1)
print nr
if re.match(adres, linia):
xx = adres.search(linia)
tab.append = (xx.group(1))
# return xx.group(1)
if re.match(foto, linia):
xx = foto.search(linia)
tab.append = (xx.group(1))
# return xx.group(1)
if re.match(opis, linia):
xx = opis.search(linia)
tab.append = (xx.group(1))
# return xx.group(1)
if re.match(title, linia):
xx = title.search(linia)
tab.append = (xx.group(1))
# return xx.group(1)
else: print "nope"
##################
# end rep
#################
s = rep()
i = 0
while i <= count:
x = w2(i)
#print s.pluj(x,i)
s.pluj(x,i)
i += 1
print s.tab
您正试图通过分配来更改python list append。必须使用append。
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