我在这个站点上有一个Python脚本,它从SFTP服务器下载目录中的文件.现在我需要帮助来修改此代码,以便它只下载从使用代码之日起超过5天的文件.
下载文件的代码(基于Python pysftp get_r from Linux works fine on Linux but not on Windows):
import os
import pysftp
from stat import S_IMODE, S_ISDIR, S_ISREG
cnopts = pysftp.CnOpts()
cnopts.hostkeys = None
sftp=pysftp.Connection('192.168.X.X', username='username',password='password',cnopts=cnopts)
def get_r_portable(sftp, remotedir, localdir, preserve_mtime=False):
for entry in sftp.listdir(remotedir):
remotepath = remotedir + "/" + entry
localpath = os.path.join(localdir, entry)
mode = sftp.stat(remotepath).st_mode
if S_ISDIR(mode):
try:
os.mkdir(localpath,mode=777)
except OSError:
pass
get_r_portable(sftp, remotepath, localpath, preserve_mtime)
elif S_ISREG(mode):
sftp.get(remotepath, localpath, preserve_mtime=preserve_mtime)
remote_path=input("enter the remote_path: ")
local_path=input("enter the local_path: ")
get_r_portable(sftp, remote_path, local_path, preserve_mtime=False)
请帮我修改代码,以便它只从当天下载5天后下载文件.
解决方法:
使用pysftp.Connection.listdir_attr
获取包含属性的文件列表(包括文件时间戳).
然后,迭代列表并仅选择所需的文件.
import time
def get_r_portable(sftp, remotedir, localdir, preserve_mtime=False):
for entry in sftp.listdir_attr(remotedir):
remotepath = remotedir + "/" + entry.filename
localpath = os.path.join(localdir, entry.filename)
mode = entry.st_mode
if S_ISDIR(mode):
try:
os.mkdir(localpath)
except OSError:
pass
get_r_portable(sftp, remotepath, localpath, preserve_mtime)
elif S_ISREG(mode):
if (time.time() - entry.st_mtime) // (24 * 3600) >= 5:
sftp.get(remotepath, localpath, preserve_mtime=preserve_mtime)
虽然代码可以更简单,但如果您不需要递归下载:
for entry in sftp.listdir_attr(remotedir):
mode = entry.st_mode
if S_ISREG(mode) and ((time.time() - entry.st_mtime) // (24 * 3600) >= 5):
remotepath = remotedir + "/" + entry.filename
localpath = os.path.join(localdir, entry.filename)
sftp.get(remotepath, localpath, preserve_mtime=True)
基于:
> Python pysftp get_r from Linux works fine on Linux but not on Windows
(我已更新此代码源以使用listdir_attr,因为它更有效)
> How to sync only the changed files from the remote directory using pysftp?
> Delete files that are older than 7 days