python ftp demo

广9567

　　


import ftplib
import os
import socket
HOST = 'ftp.mozilla.org'
DIRN = 'pub/mozilla.org/webtools'
FILE = 'bugzilla-LATEST.tar.gz'
#username = 'socmax'
#pwd = '#2009@socmaxcom'
def main():
try:
f = ftplib.FTP(HOST)
except (socket.error,socket.gaierror), e:
print 'ERROR: cannot reach "%s"' % HOST
return
print '*** connected to host "%s"' % HOST
try:
#        f.login(username,pwd)
f.login()
except ftplib.error_perm:
print 'ERROR: cannot login'
f.quit()
return
#    print '*** login the ftp by user "%s" ***' % username
print '*** login the ftp by user'
try:
f.cwd(DIRN)
except ftplib.error_perm:
print 'Error: cannot cd to "%s"' % DIRN
f.quit()
return
print '*** changed to "%s" folder' % DIRN
try:
f.retrbinary('RETR %s' % FILE,open(FILE, 'wb').write)
except ftplib.error_perm:
print 'Error,cannot read file "%s"' % FILE
os.unlink(FILE)
else:
print '*** Download "%s" ok' % FILE
f.quit()
return
if __name__ == '__main__':
main()
 python ftp demo