問題描述

我無法在 Python 中對我的文件設(shè)置 ctime/mtime.首先我通過 FTP 獲取文件的原始時(shí)間戳.

I cannot set ctime/mtime on my file within Python. First I get the original timestamp of the file through FTP.

我唯一想要的就是使用 ftplib 在我下載的文件上保留原始時(shí)間戳.

The only thing I want is to keep the original timestamps on my downloaded files using the ftplib.

def getFileTime(ftp,name):
    try :
          modifiedTime = ftp.sendcmd('MDTM ' + name)  
          filtid = datetime.strptime(modifiedTime[4:], "%Y%m%d%H%M%S").strftime("%d %B %Y %H:%M:%S")
          return   filtid
    except :
        return False

然后我下載文件

def downloadFile(ftp, fileName) :
    try:
        ftp.retrbinary('RETR %s' % fileName,open(fileName, 'wb').write)
    except ftplib.error_perm:
        print 'ERROR: cannot read file "%s"' % fileName
        os.unlink(fileName)
        return False
    else:
        print '*** Downloaded "%s" to CWD' % fileName
        return True

             

我想為下載的文件設(shè)置原始時(shí)間戳

and the I want to set the original timestamp to the downloaded file

def modifyTimestapToOriginal(fileName, orgTime):
    #try:
            os.utime(fileName, orgTime)
            fileName.close()
     #       return True
   # except:
            
    #        return False

    

這就是我嘗試的方式

ftp, files = f.loginftp(HOST,user,passwd,remoteDir)
        
        for i in files :
          
           if not f.isDir(ftp,i) :
               fixTime = datetime.strptime(varfixtime, "%d-%m-%Y %H:%M:%S")
               ftime = f.getFileTime(ftp,i)
               
               if ftime >= fixTime  :
                   print (ftime)
                   os.chdir('c:/testdownload')
                   f.downloadFile(ftp,i)
                   
                   settime = ftime.timetuple()
                   print "settime '%s'" % settime
                   #f.modifyTimestapToOriginal(i, settime)

                 
    

錯(cuò)誤是:

    os.utime(fileName, orgTime)
TypeError: utime() arg 2 must be a tuple (atime, mtime)

誰能幫我給我一個(gè)更好的方法來保留原始文件時(shí)間戳或如何將 ftime 轉(zhuǎn)換為 os.utime 的可用元組

Can anyone help me either give me a better way to keep the original file timestamps or how to convert the ftime to a usable tuple for os.utime

推薦答案

來自 os.utime() 文檔:

From the os.utime() documentation:

否則，times 必須是數(shù)字的二元組，格式為 (atime, mtime)，分別用于設(shè)置訪問時(shí)間和修改時(shí)間.

Otherwise, times must be a 2-tuple of numbers, of the form (atime, mtime) which is used to set the access and modified times, respectively.

你沒有給它一個(gè)元組.在這種情況下，只需將 atime 和 mtime 都設(shè)置為相同的值:

You are not giving it a tuple. In this case, just set both atime and mtime to the same value:

os.utime(fileName, (orgTime, orgTime))

fileName 是一個(gè)字符串，所以 fileName.close() 不起作用(你會得到一個(gè)屬性錯(cuò)誤)，只需刪除該行.

fileName is a string, so fileName.close() won't work (you'll get an attribute error), just drop that line.

orgTime 必須是整數(shù)；你給它一個(gè)時(shí)間元組；使用 time.mktime 將其轉(zhuǎn)換為以秒為單位的時(shí)間戳():

orgTime must be an integer; you are giving it a time tuple; convert it to a timestamp in seconds since the epoch with time.mktime():

settime = time.mktime(ftime.timetuple())

這篇關(guān)于Python 轉(zhuǎn)換日期時(shí)間以在 os.utime 中使用的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！