使用 python 将所有 csv 文件从编码 ansi 转换为 utf8

我有Python代码如下：

import os
from os import listdir

def find_csv_filenames( path_to_dir, suffix=".csv" ):
    filenames = listdir(path_to_dir)
    return [ filename for filename in filenames if filename.endswith( suffix ) ]
    #always got the error this below code
filenames = find_csv_filenames('C:\casperjs\project\teleservices\csv')
for name in filenames:
    print name

我遇到错误：

filenames = find_csv_filenames('C:\casperjs\project\teleservices\csv')
Error message: `TabError: inconsistent use of tabs and spaces in indentation`

我需要什么：我想读取所有csv文件并将其从编码ansi转换为utf8，但上面的代码只是每个csv文件的读取路径。我不知道这是怎么回事？

下面将转换 ascii 文件中的每一行：

import os
from os import listdir

def find_csv_filenames(path_to_dir, suffix=".csv" ):
    path_to_dir = os.path.normpath(path_to_dir)
    filenames = listdir(path_to_dir)
    #Check *csv directory
    fp = lambda f: not os.path.isdir(path_to_dir+"/"+f) and f.endswith(suffix)
    return [path_to_dir+"/"+fname for fname in filenames if fp(fname)]

def convert_files(files, ascii, to="utf-8"):
    for name in files:
        print "Convert {0} from {1} to {2}".format(name, ascii, to)
        with open(name) as f:
            for line in f.readlines():
                pass
                print unicode(line, "cp866").encode("utf-8")    

csv_files = find_csv_filenames('/path/to/csv/dir', ".csv")
convert_files(csv_files, "cp866") #cp866 is my ascii coding. Replace with your coding.