import re
file = open(r'blog.xml')
s = file.readlines()
file.close()
t = 0
d = 0
l = 0
time = {}
content = {}
for line in s:
	date = re.findall('<description><!\[CDATA\[',line)
	word = re.findall('<pubDate>.*</pubDate>',line)
	if len(word)==1:
		time[t] = [word[0],l]
		t+=1
	if len(date)==1:
		content[d] = l
		d+=1
	l+=1
if t == d:
	for n in content:
		s.insert(content[n],time[n][0])
		s.pop(time[n][1]+1)
	file = open('test.xml','w')
	file.writelines(s)
	file.close()