list index out of range 求解

[chen_jia_xing]

import os,re,linecache
def fun(path):
for root,dirs,files in os.walk(path):
for fn in files:
rootpath = os.path.join(root,fn)
filetype=fn.split('.')[1]
if filetype in['xml']:
print(rootpath)
new=(linecache.getline(rootpath,4)).rstrip()
print (new)
#print (type(new))
newsp=new.split('.')
#print (type(newsp))
print(newsp[1])
f= open(rootpath,'r+')
d=f.read()
open(rootpath, 'w').write(re.sub(r'a', 'b', d))
f.close()
else:
continue
fun(r'C:\wmpub')



C:\wmpub\a.xml

Traceback (most recent call last):
File "C:\Documents and Settings\Administrator\桌面\test.py", line 21, in <module>
fun(r'C:\wmpub')
File "C:\Documents and Settings\Administrator\桌面\test.py", line 14, in fun
print(newsp[1])
IndexError: list index out of range
>>>

[libralibra]

print(newsp[1])这里,newsp要么是个空list[],要么长度是1,没有[1],只有[0]
建议你print之前做个判断

if len(newsp)>1:
print(newsp[1])
else:
print(newsp)

[tim_spac_126]

#!/usr/bin/python

import os,re,linecache

def walkFilesInPath(path, extfilter='.xml'):
    for root, dirs, files in os.walk(path):
        for filename in files:
            if os.path.splitext(filename)[1] == extfilter:
                yield os.path.join(root, filename)


def processFile(filename):
    newsp = (linecache.getline(filename,4)).rstrip().split('.')
    print(newsp)


def fun(path):
    for filename in walkFilesInPath(path, extfilter='.xml'):
        processFile(filename)

fun(r'C:\wmpub')

这样子输出了啥？

[bugs2k]

意思是你访问的东西已经超出了数组的界限

[chen_jia_xing]

没有越界啊 print (new) 这个是文件里的第四行，不要后面的代码打印出来是一个list，里面是有值的，4个以上