python下载ftp文件

phantomxjc 发表于 2023-5-5 15:46

from ftplib import FTP
import shutil

import os
import datetime
from ftplib import FTP
import re

def yearmonthday():
date01 = datetime.date.today()
date01 = str(date01)
year = date01
month = date01
day = date01
monthday = month + day
filename = str(year) +"."+ str(month) +"."+ str(day)

return filename

def create_file(filename):

# 经常用到的(如果文件夹不存在，则创建该文件夹)
if not os.path.exists("F:" + filename):
   os.makedirs("F:" + filename)
localdir= "F:" + filename
return localdir

def ftp_link():
ftp = FTP()
# 连接ftp
ftp.connect("", )
# ftp登录
ftp.login("", "")
# 查看欢迎信息
print(ftp.getwelcome())

return ftp

def ftp_download(LocalFile, RemoteFile, bufsize):
# 本地是否有此文件，来确认是否启用断点续传
if not os.path.exists(LocalFile):
   with open(LocalFile, 'wb') as f:
         ftp.retrbinary('RETR %s' % RemoteFile, f.write, bufsize)
         f.close()
         # ftp.set_debuglevel(0)          #关闭调试模式
         return True
else:
   p = re.compile(r'\\',re.S)
   LocalFile = p.sub('/', LocalFile)
   localsize = os.path.getsize(LocalFile)
   with open(LocalFile, 'ab+') as f:
         ftp.retrbinary('RETR %s' % RemoteFile, f.write, bufsize, localsize)
         f.close()
         # ftp.set_debuglevel(0)          #关闭调试模式
         return True

def DownLoadFileTree(LocalDir, RemoteDir):
print("RemoteDir:", RemoteDir)

if not os.path.exists(LocalDir):
   os.makedirs(LocalDir)

# 打开该远程目录
ftp.cwd(RemoteDir)

# 获取该目录下所有文件名，列表形式
RemoteNames = ftp.nlst()
print(RemoteNames)
for file in RemoteNames:
   Local = os.path.join(LocalDir, file)# 下载到当地的全路径
   print(ftp.nlst(file))# [如test.txt]
   if file.find(".") == -1:# 是否子目录如test.txt就非子目录
         if file.find("README") == -1:
            if not os.path.exists(Local):
               os.makedirs(Local)
            DownLoadFileTree(Local, file)# 下载子目录路径
         else:
            ftp.voidcmd('TYPE I')# 将传输模式改为二进制模式 ,避免提示 ftplib.error_perm: 550 SIZE not allowed in ASCII
            bufsize = ftp.size(file)# 服务器里的文件总大小
            print(bufsize)
            ftp_download(Local, file, bufsize)
   else:
         ftp.voidcmd('TYPE I')# 将传输模式改为二进制模式 ,避免提示 ftplib.error_perm: 550 SIZE not allowed in ASCII
         bufsize = ftp.size(file)# 服务器里的文件总大小
         print(bufsize)
         ftp_download(Local, file, bufsize)
ftp.cwd("..")# 返回路径最外侧
return

filename = yearmonthday()
print (filename)

bh = input("请输入：")
year = bh
monthday = bh
RemoteDir =
localdir = create_file(filename)
localdir = localdir +'\\'+ bh
print(localdir)
ftp = ftp_link()
DownLoadFileTree(localdir, RemoteDir)

phantomxjc 发表于 2023-5-6 09:00

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python下载ftp文件