python-初学入门

# --- picknames.py --- 
import os
filenames = os.listdir(os.getcwd())
for name in filenames:
    print str(name)
    filenames[filenames.index(name)]=name[:-3]
    out=open('names.txt','w')
    for name in filenames:
        out.write(name+'\n')
    out.close()
一个python学起来还真不容啊，习惯了php的语法。突然发现不会写程序了。
error1:indentationError:expected an indented block;
正解：缩进的问题。按照提示的行数进行tab缩进