文件修改和创建 [英] file modification and creation

问题描述

如何扫描文本文件的目录并按日期修改读取文本文件，将其打印到屏幕上，每隔5秒钟将脚本扫描目录，以便对较新的文件进行编辑并打印。
有可能你可以帮助我，我被困住，我需要这个真正的坏，我已经拥有扫描目录的文件和打印，但它不会按日期modidfied打印文件。

How would you scan a dir for a text file and read the text file by date modified, print it to screen having the script scan the directory every 5 seconds for a newer file creadted and prints it. Is it possible that you can help me i'm stuck and i need this real bad and i've already got the scan dir for file and print but it does not print the files by date modidfied.

import os,sys
os.chdir(raw_input('dir_path: ') )    
contents=os.listdir('.') #contents of the current directory
files =[]
directory=[]
Time = time.ctime(os.path.getmtime(contents))
for i in contents:
    if os.path.isfile(i) == True :
       files.append(i)
    elif os.path.isdir(i) == True :
       directory.append(i)
    #printing contents
choice = ""       
for j in files:
    while choice != "quit":
            choice = raw_input("Dou you want to print file  %s (y/n): "%j)
            if choice == 'y':
               print "**************************"
               print "Printing Files %s" %j
               print "**************************"
               fileobj = open(j,'r')
               contents = fileobj.readlines()
               for k in contents:
                     sys.stderr.write(k)
               else:
                    pass

我想要的是代替我的代码，询问是否要打印我需要它打印文件，如果修改当前时间的含义，如果它读取刚刚放在目录中的文件，并且新的文件进入它将读取新的文件，而不提示我。
它给我的错误是强制为unicode：需要字符串或缓冲区，找到列表。

what i wanted is instead of my code asking if it wants to print i need it to print the files if modified by the current time meaning if it read a file that was just placed in the directory and a new one comes in it will read the new file without prompting me. the error it's giving me is coercing to unicode: need string or buffer, list found.

推荐答案

os.stat 会告诉你修改时间

os.stat will tell you the modification time

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