1 #coding:utf-8 2 import re 3 def IDXtoSCS(path):#IDX转换为开思的函数 4 IDXfile=open(path,‘r‘) 5 fileread=IDXfile.readlines() 6 IDXfile.close() 7 p=‘"(\w)*",\s+(\d+\\.\d+),\s+(\d+\\.\d+),\s+(\d+\\.\d+),\s+"(\w*)",‘ 8 data=re.findall(p,fileread) 9 print data 10 IDXtoSCS(‘C:/Users/Administrator/Desktop 2/0409.IDX‘)
上面这段代码是想实现对整个文件进行RE匹配，用findall找出所有与正则表达式匹配的字符串
但是运行后出现：
File "C:\Users\Administrator\Desktop 2\IDXtoSCS.py", line 8, in IDXtoSCS
data=re.findall(p,fileread)
File "C:\Python27\lib\re.py", line 181, in findall
return _compile(pattern, flags).findall(string)
TypeError: expected string or buffer
问题出在file.readlines()上
在IDLE里输入help(file.readline)
>>> help(file.readlines) Help on method_descriptor: readlines(...) readlines([size]) -> list of strings, each a line from the file. Call readline() repeatedly and return a list of the lines so read. The optional size argument, if given, is an approximate bound on the total number of bytes in the lines returned.
readlines是文件的每行字符串的链表，而re.findall()方法需要的argument是字符串
将fileread=IDXfile.readlines()换成fileread=IDXfile.read()就解决了
因为file.read()返回的是整个文件的字符串
原文：http://www.cnblogs.com/alvysinger/p/4557383.html