Question

我正在尝试使用Windows上的python 2.7实现文件传输自动化。

所以我有一个FTPS服务器，我需要将一些文件从它移动到本地目录并将一些文件从本地上传到FTPS

FTPS结构如下：

- ROOT FOLDER
    - AAA
        - abc_id1
            - in
            - out
        - abc_id2
            - in
            - out   
        - abc_id3
            - in
            - out
    - BBB
        - abc_id1
            - in
            - out
        - abc_id2
            - in
            - out   
        - abc_id3
            - in
            - out

我必须首先移动所有匹配通配符ABC _ *。csv的文件，它们位于所有/文件夹中（例如，对于例如AAA \ abc_id1 \ in）到本地目录

然后我必须将一些带有通配符的文件从本地目录上传（COPY）到相应的abc_ / in文件夹（例如，一个名为ABC_id3.csv的文件必须转到abc_id3文件夹）

我已经开始了代码：

from ftplib import FTP_TLS

ftps = FTP_TLS('ip_address')
ftps.login("user", "pass")           # login before securing control channel
ftps.prot_p()          # switch to secure data connection
#ftps.retrlines('LIST') # list directory content securely

ftps.cwd("AAA")
ftps.retrlines('LIST')



ftps.quit()

但我不知道如何遍历多个文件夹来完成任务请提出一些代码

此致

Answer 1

有两件事会有所帮助。浏览包含os.walk和generators的目录。您需要浏览目录并检查每个文件。一旦确定它是您想要的文件，您就可以应用适当的FTP功能。

以下是我正在处理的某个应用中的示例。我也添加了排除功能。

# Generator which runs through directories and returns files

def scanDir (self, root, excludeDirs, excludeFiles, excludeExt, maxFileSize):
    global fileList

    print "Scanning directory " + root
    x = 0
    for root, dirnames, filenames in os.walk(root):

            for name in filenames:
                #We want absolute path to these
                absroot = os.path.abspath(root)
                filename = os.path.join(absroot, name)
                fileSize = os.path.getsize(filename) / 1024
                x = x + 1
                #print x
                #@TODO compressed files call here (Extension)
                if (os.path.isfile(filename) and os.path.getsize(filename) > 0): 
                    if fileSize > maxFileSize:
                        continue
                    else:
                        try:
                            #print root + name
                            os.path.getsize(filename)
                            data = open(root + "/" + name, 'rb').read()
                        except:
                            data = False
                            print "Could not read file :: %s/%s" % (root, file)

                        # TODO Create Exception here and filter file paths:
                        # regex for /home/*/mail
                        self.fileList.append({"filename":filename})
                        yield data, filename

Answer 2

以下是使用匿名登录递归遍历FTP服务器并获取zip文件的示例。

#!/usr/bin/env python

from ftplib import FTP
from time import sleep
import os

ftp = FTP('ftp2.census.gov')
ftp.login()

my_dirs = []  # global
my_files = [] # global
curdir = ''   # global

def get_dirs(ln):
  global my_dirs
  global my_files
  cols = ln.split(' ')
  objname = cols[len(cols)-1] # file or directory name
  if ln.startswith('d'):
    my_dirs.append(objname)
  else:
    if objname.endswith('.zip'):
      my_files.append(os.path.join(curdir, objname)) # full path

def check_dir(adir):
  global my_dirs
  global my_files # let it accrue, then fetch them all later
  global curdir
  my_dirs = []
  gotdirs = [] # local
  curdir = ftp.pwd()
  print("going to change to directory " + adir + " from " + curdir)
  ftp.cwd(adir)
  curdir = ftp.pwd()
  print("now in directory: " + curdir)
  ftp.retrlines('LIST', get_dirs)
  gotdirs = my_dirs
  print("found in " + adir + " directories:")
  print(gotdirs)
  print("Total files found so far: " + str(len(my_files)) + ".")
  sleep(1)
  for subdir in gotdirs:
    my_dirs = []
    check_dir(subdir) # recurse  

  ftp.cwd('..') # back up a directory when done here

try:
  check_dir('/geo/tiger/GENZ2012') # root directory to start in
except:
  print('oh dear.')
  ftp.quit()

ftp.cwd('/.') # change to root directory for downloading
for f in my_files:
  print('getting ' + f)
  file_name = f.replace('/', '_') # use path as filename prefix, with underscores
  ftp.retrbinary('RETR ' + f, open(file_name, 'wb').write)
  sleep(1)

ftp.quit()
print('all done!')

Python - 将特定文件移动/上传到FTPS

2 个答案: