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python对文件目录的操作方法实例总结

更新时间:2020-07-08 13:18:01 作者:startmvc
本文实例讲述了python对文件目录的操作方法。分享给大家供大家参考,具体如下:python可以

本文实例讲述了python对文件目录的操作方法。分享给大家供大家参考,具体如下:

python 可以很方便的对文件进行打开,读写操作,删除操作,也可以很方便的对文件夹进行遍历操作。总体说来,有如下几个方面:

1. python 遍历文件目录,当然可以递归 2. python 删除文件 3. python 对文件进行重命名操作 4. python 创建文件夹 (多个层级创建) 5. python 删除文件夹  (多个层级删除) 6. python 移动文件 7. python 查找文件 8. 得到文件夹的大小

下面的代码是我在用python 做一个网盘服务端的时候用到的一些方法,记录下来,以供以后参考.


#coding:utf-8
import StringIO
import json
import os
import time
import glob
import shutil
DATETIMEFORMATER='%Y-%m-%d %X'
#only for windows
RECYCLED_FOLDER_NAME='Recycled'
def dateformat(datetime):
 '''return GMT TIME,need to change to LOCAL TIME'''
 return time.strftime( DATETIMEFORMATER,time.gmtime(datetime) )
def filesizeformat(size):
 ''' Convert file size to string '''
 KBSIZE=1024.00
 strSize='0 Byte'
 if (size < KBSIZE):
 strSize = '%.2f Byte' % (size)
 elif (size >= KBSIZE and size < KBSIZE**2):
 strSize = '%.2f K' % (size / KBSIZE)
 elif (size >= KBSIZE**2 and size < KBSIZE**3):
 strSize = '%.2f M' % (size / KBSIZE / KBSIZE)
 elif (size >= KBSIZE**3):
 strSize = '%.2f G' % (size / KBSIZE / KBSIZE / KBSIZE)
 return strSize
def listdir(path):
 if os.path.isfile(path):
 return '[]'
 allFiles=os.listdir(path)
 retlist=[]
 for cfile in allFiles:
 fileinfo={}
 filepath=(path+os.path.sep+cfile).replace("\\","/")
 if cfile==RECYCLED_FOLDER_NAME:
 continue
 if os.path.isdir(filepath):
 fileinfo['isfile'] = '0'
 fileinfo['size'] = getfoldersize(filepath)
 else:
 fileinfo['isfile'] = '1'
 fileinfo['size'] = os.path.getsize(filepath)
 fileinfo['name'] = cfile
 fileinfo['lastvisittime'] = dateformat( os.path.getatime(filepath) )
 fileinfo['createtime'] = dateformat( os.path.getctime(filepath) )
 fileinfo['lastmodifytime'] = dateformat( os.path.getmtime(filepath) )
 retlist.append(fileinfo)
 retStr=json.dumps(retlist,encoding='utf-8')
 return retStr
def deletefile(path):
 if os.path.exists(path):
 os.remove(path)
def rename(old,new):
 if os.path.exists(old):
 os.rename(old, new)
def checkoutfile(path):
 pass
def checkinfile(path):
 pass
def lockfile(path):
 pass
def unlockfile(path):
 pass
def createfolder(path):
 if not os.path.exists(path):
 os.mkdir(path)
def createfolders(path):
 if not os.path.exists(path):
 os.makedirs(path);
def deletefolder(path):
 if os.path.isdir(path):
 os.rmdir(path)
def retreeExceptionHandler(fun,path,excinfo):
 pass
def deletefolders(path):
# if os.path.isdir(path):
# os.removedirs(path)
 shutil.rmtree(path,ignore_errors=False,onerror=retreeExceptionHandler)
def movefile(old,new):
 shutil.move(old, new)
def getfoldersize(path):
 size = 0
 for root, dirs, files in os.walk(path):
 size += sum([os.path.getsize(os.path.join(root, name)) for name in files])
 return size
def searchfile(path,ext):
 returnList=glob.glob1(path, ext)
 return returnList
if __name__=='__main__':
 listdir('c:/vDriver')
 #searchfile('c:/vDriver','*.log')

上面的代码,根据方法的命名,就可以知道 python 操作文件以及文件夹的各种方法。

python 文件目录 操作方法