On Sun, Sep 16, 2012 at 11:09 AM, moonhkt <moon...@gmail.com> wrote:
> Hi All
>
>
> O'Reilly Book ISBN 978-986-6840-36-4.
>
> python --version
> Python 2.6.2 on AIX 5.3
>
> Using this python to get files in ftp server.
>
> I got below error. What is the error meaning and how to fix ?
>
> ftp_mirror.py
> Traceback (most recent call last):
> File "/xx../shell/ftpmirror.py", line 80, in <module>
> f = FTPSync(options.host, options.username, options.password,
> options.remote_dir, options.local_dir, opti
> ons.delete)
> File "xx../shell/ftpmirror.py", line 17, in __init__
> self.conn.cwd(ftp_base_dir)
> File "/opt/freeware/lib/python2.6/ftplib.py", line 536, in cwd
> cmd = 'CWD ' + dirname
> TypeError: cannot concatenate 'str' and 'NoneType' objects
>
> Source :
>
> #!/usr/bin/env python
>
> import ftplib
> import os
>
> class FTPSync(object):
> def __init__(self, host, username, password, ftp_base_dir,
> local_base_dir, delete=False):
> self.host = host
> self.username = username
> self.password = password
> self.ftp_base_dir = ftp_base_dir
> self.local_base_dir = local_base_dir
> self.delete = delete
>
> self.conn = ftplib.FTP(host, username, password)
> self.conn.cwd(ftp_base_dir)
> try:
> os.makedirs(local_base_dir)
> except OSError:
> pass
> os.chdir(local_base_dir)
> def get_dirs_files(self):
> dir_res = []
> self.conn.dir('.', dir_res.append)
> files = [f.split(None, 8)[-1] for f in dir_res if
> f.startswith('-')]
> dirs = [f.split(None, 8)[-1] for f in dir_res if
> f.startswith('d')]
> return (files, dirs)
> def walk(self, next_dir):
> print "Walking to", next_dir
> self.conn.cwd(next_dir)
> try:
> os.mkdir(next_dir)
> except OSError:
> pass
> os.chdir(next_dir)
>
> ftp_curr_dir = self.conn.pwd()
> local_curr_dir = os.getcwd()
>
> files, dirs = self.get_dirs_files()
> print "FILES:", files
> print "DIRS:", dirs
> for f in files:
> print next_dir, ':', f
> outf = open(f, 'wb')
> try:
> self.conn.retrbinary('RETR %s' % f, outf.write)
> finally:
> outf.close()
> if self.delete:
> print "Deleting", f
> self.conn.delete(f)
> for d in dirs:
> os.chdir(local_curr_dir)
> self.conn.cwd(ftp_curr_dir)
> self.walk(d)
>
> def run(self):
> self.walk('.')
>
>
> if __name__ == '__main__':
> from optparse import OptionParser
> parser = OptionParser()
> parser.add_option("-o", "--host", dest="host",
> action='store', help="FTP host")
> parser.add_option("-u", "--username", dest="username",
> action='store', help="FTP username")
> parser.add_option("-p", "--password", dest="password",
> action='store', help="FTP password")
> parser.add_option("-r", "--remote_dir", dest="remote_dir",
> action='store', help="FTP remote starting directory")
> parser.add_option("-l", "--local_dir", dest="local_dir",
> action='store', help="Local starting directory")
> parser.add_option("-d", "--delete", dest="delete", default=False,
> action='store_true', help="use regex parser")
>
> (options, args) = parser.parse_args()
comment the next line , then print the parameters and see what they
are. That should get you started.
> #f = FTPSync(options.host, options.username, options.password,
> # options.remote_dir, options.local_dir, options.delete)
f = print(options.host, options.username, options.password,
options.remote_dir, options.local_dir, options.delete)
> f.run()
>
> --
> http://mail.python.org/mailman/listinfo/python-list
--
Joel Goldstick
--
http://mail.python.org/mailman/listinfo/python-list
