"[链接] 阅读目录 [链接] [链接] [链接] [链接] [链接] [链接][链接]函数释义 Python 中默认安装的 ftplib 模块定义了FTP 类，其中函数有限，可用来实现简单的 ftp 客户端，用于上传或下载文件，函数列举如下 [链接]1234567891011121314151617 ...."

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python ftplib模块

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函数释义

Python 中默认安装的 ftplib 模块定义了FTP 类，其中函数有限，可用来实现简单的 ftp 客户端，用于上传或下载文件，函数列举如下

ftp登陆连接
from ftplib import FTP            #加载ftp模块
ftp=FTP()                         #设置变量
ftp.set_debuglevel(2)             #打开调试级别2，显示详细信息
ftp.connect("IP","port")          #连接的ftp sever和端口
ftp.login("user","password")      #连接的用户名，密码
print ftp.getwelcome()            #打印出欢迎信息
ftp.cmd("xxx/xxx")                #进入远程目录
bufsize=1024                      #设置的缓冲区大小
filename="filename.txt"           #需要下载的文件
file_handle=open(filename,"wb").write #以写模式在本地打开文件
ftp.retrbinary("RETR filename.txt",file_handle,bufsize) #接收服务器上文件并写入本地文件
ftp.set_debuglevel(0)             #关闭调试模式
ftp.quit()                        #退出ftp
 
ftp相关命令操作
ftp.cwd(pathname)                 #设置FTP当前操作的路径
ftp.dir()                         #显示目录下所有目录信息
ftp.nlst()                        #获取目录下的文件
ftp.mkd(pathname)                 #新建远程目录
ftp.pwd()                         #返回当前所在位置
ftp.rmd(dirname)                  #删除远程目录
ftp.delete(filename)              #删除远程文件
ftp.rename(fromname, toname)#将fromname修改名称为toname。
ftp.storbinaly("STOR filename.txt",file_handel,bufsize)  #上传目标文件
ftp.retrbinary("RETR filename.txt",file_handel,bufsize)  #下载FTP文件

FTP.quit()与 FTP.close() 的区别

FTP.quit(): 发送 QUIT 命令给服务器并关闭掉连接。这是一个比较“缓和”的关闭连接方式，但是如果服务器对 QUIT 命令返回错误时，会抛出异常。
FTP.close()：单方面的关闭掉连接，不应该用在已经关闭的连接之后，例如不应用在 FTP.quit() 之后。

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例 1：下载、上传文件

#coding: utf-8
from ftplib import FTP
import time
import tarfile
#!/usr/bin/python
#-*- coding: utf-8 -*-
from ftplib import FTP
def ftpconnect(host, username, password):
ftp = FTP()
#ftp.set_debuglevel(2)         #打开调试级别 2，显示详细信息
ftp.connect(host, 21)          #连接
ftp.login(username, password)  #登录，如果匿名登录则用空串代替即可
return ftp
def downloadfile(ftp, remotepath, localpath):
bufsize = 1024                #设置缓冲块大小
fp = open(localpath,'wb')     #以写模式在本地打开文件
ftp.retrbinary('RETR ' + remotepath, fp.write, bufsize) #接收服务器上文件并写入本地文件
ftp.set_debuglevel(0)         #关闭调试
fp.close()                    #关闭文件
def uploadfile(ftp, remotepath, localpath):
bufsize = 1024
fp = open(localpath, 'rb')
ftp.storbinary('STOR '+ remotepath , fp, bufsize) #上传文件
    ftp.set_debuglevel(0)
fp.close()
if name == "main":
ftp = ftpconnect("******", "***", "***")
downloadfile(ftp, "***", "***")
uploadfile(ftp, "***", "***")
ftp.quit()</span></pre>

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例 2：上传、下载文件 / 目录

#coding:utf-8
from ctypes import *
import os
import sys
import ftplib
class myFtp:
ftp = ftplib.FTP()
bIsDir = False
path = ""
def init(self, host, port='21'):
#self.ftp.set_debuglevel(2) #打开调试级别 2，显示详细信息 
#self.ftp.set_pasv(0)      #0 主动模式 1 #被动模式
        self.ftp.connect(host, port)
</span><span style="color: rgba(0, 0, 255, 1)">def</span><span style="color: rgba(0, 0, 0, 1)"> Login(self, user, passwd):
    self.ftp.login( user, passwd )
    </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)"> self.ftp.welcome

</span><span style="color: rgba(0, 0, 255, 1)">def</span><span style="color: rgba(0, 0, 0, 1)"> DownLoadFile(self, LocalFile, RemoteFile):
    file_handler </span>= open( LocalFile, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">wb</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)"> )
    self.ftp.retrbinary( </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">RETR %s</span><span style="color: rgba(128, 0, 0, 1)">"</span> %<span style="color: rgba(0, 0, 0, 1)">( RemoteFile ), file_handler.write ) 
    file_handler.close()
    </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> True

</span><span style="color: rgba(0, 0, 255, 1)">def</span><span style="color: rgba(0, 0, 0, 1)"> UpLoadFile(self, LocalFile, RemoteFile):
    </span><span style="color: rgba(0, 0, 255, 1)">if</span> os.path.isfile( LocalFile ) ==<span style="color: rgba(0, 0, 0, 1)"> False:
        </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> False
    file_handler </span>= open(LocalFile, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">rb</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
    self.ftp.storbinary(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">STOR %s</span><span style="color: rgba(128, 0, 0, 1)">'</span>%RemoteFile, file_handler, 4096<span style="color: rgba(0, 0, 0, 1)">)
    file_handler.close()
    </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> True

</span><span style="color: rgba(0, 0, 255, 1)">def</span><span style="color: rgba(0, 0, 0, 1)"> UpLoadFileTree(self, LocalDir, RemoteDir):
    </span><span style="color: rgba(0, 0, 255, 1)">if</span> os.path.isdir(LocalDir) ==<span style="color: rgba(0, 0, 0, 1)"> False:
        </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> False
    </span><span style="color: rgba(0, 0, 255, 1)">print</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">LocalDir:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">, LocalDir
    LocalNames </span>=<span style="color: rgba(0, 0, 0, 1)"> os.listdir(LocalDir)
    </span><span style="color: rgba(0, 0, 255, 1)">print</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">list:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">, LocalNames
    </span><span style="color: rgba(0, 0, 255, 1)">print</span><span style="color: rgba(0, 0, 0, 1)"> RemoteDir
    self.ftp.cwd( RemoteDir )
    </span><span style="color: rgba(0, 0, 255, 1)">for</span> Local <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> LocalNames:
        src </span>=<span style="color: rgba(0, 0, 0, 1)"> os.path.join( LocalDir, Local)
        </span><span style="color: rgba(0, 0, 255, 1)">if</span><span style="color: rgba(0, 0, 0, 1)"> os.path.isdir( src ): self.UpLoadFileTree( src, Local )
        </span><span style="color: rgba(0, 0, 255, 1)">else</span><span style="color: rgba(0, 0, 0, 1)">:
            self.UpLoadFile( src, Local )
            
    self.ftp.cwd( </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">..</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> )
    </span><span style="color: rgba(0, 0, 255, 1)">return</span>

<span style="color: rgba(0, 0, 255, 1)">def</span><span style="color: rgba(0, 0, 0, 1)"> DownLoadFileTree(self, LocalDir, RemoteDir):
    </span><span style="color: rgba(0, 0, 255, 1)">print</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">remoteDir:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">, RemoteDir
    </span><span style="color: rgba(0, 0, 255, 1)">if</span> os.path.isdir( LocalDir ) ==<span style="color: rgba(0, 0, 0, 1)"> False:
        os.makedirs( LocalDir )
    self.ftp.cwd( RemoteDir )
    RemoteNames </span>=<span style="color: rgba(0, 0, 0, 1)"> self.ftp.nlst()  
    </span><span style="color: rgba(0, 0, 255, 1)">print</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">RemoteNames</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">, RemoteNames
    </span><span style="color: rgba(0, 0, 255, 1)">print</span> self.ftp.nlst(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">/del1</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
    </span><span style="color: rgba(0, 0, 255, 1)">for</span> file <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> RemoteNames:
        Local </span>=<span style="color: rgba(0, 0, 0, 1)"> os.path.join( LocalDir, file )
        </span><span style="color: rgba(0, 0, 255, 1)">if</span><span style="color: rgba(0, 0, 0, 1)"> self.isDir( file ):
            self.DownLoadFileTree( Local, file )                
        </span><span style="color: rgba(0, 0, 255, 1)">else</span><span style="color: rgba(0, 0, 0, 1)">:
            self.DownLoadFile( Local, file )
    self.ftp.cwd( </span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">..</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> )
    </span><span style="color: rgba(0, 0, 255, 1)">return</span>

<span style="color: rgba(0, 0, 255, 1)">def</span><span style="color: rgba(0, 0, 0, 1)"> show(self, list):
    result </span>= list.lower().split( <span style="color: rgba(128, 0, 0, 1)">"</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> )
    </span><span style="color: rgba(0, 0, 255, 1)">if</span> self.path <span style="color: rgba(0, 0, 255, 1)">in</span> result <span style="color: rgba(0, 0, 255, 1)">and</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">&lt;dir&gt;</span><span style="color: rgba(128, 0, 0, 1)">"</span> <span style="color: rgba(0, 0, 255, 1)">in</span><span style="color: rgba(0, 0, 0, 1)"> result:
        self.bIsDir </span>=<span style="color: rgba(0, 0, 0, 1)"> True
 
</span><span style="color: rgba(0, 0, 255, 1)">def</span><span style="color: rgba(0, 0, 0, 1)"> isDir(self, path):
    self.bIsDir </span>=<span style="color: rgba(0, 0, 0, 1)"> False
    self.path </span>=<span style="color: rgba(0, 0, 0, 1)"> path
    </span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)">this ues callback function ,that will change bIsDir value</span>
    self.ftp.retrlines( <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">LIST</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">, self.show )
    </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> self.bIsDir

</span><span style="color: rgba(0, 0, 255, 1)">def</span><span style="color: rgba(0, 0, 0, 1)"> close(self):
    self.ftp.quit()

if name == "main":
ftp = myFtp('')
ftp.Login('','*')
ftp.DownLoadFileTree(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">del</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">/del1</span><span style="color: rgba(128, 0, 0, 1)">'</span>)<span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)">ok</span>
ftp.UpLoadFileTree(<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">del</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">/del1</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)"> )
ftp.close()
</span><span style="color: rgba(0, 0, 255, 1)">print</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">ok!</span><span style="color: rgba(128, 0, 0, 1)">"</span></pre>

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例 3：异常处理

#coding: utf-8
#from ftplib import FTP
import ftplib
import socket
import os
def ftpconnect(ftp_info):
try:
ftp = ftplib.FTP(ftp_info[0])
except (socket.error, socket.gaierror):
print "ERROR: cannot reach %s" % ftp_info[0]
return None
username </span>= ftp_info[1<span style="color: rgba(0, 0, 0, 1)">]
passwd </span>= ftp_info[2<span style="color: rgba(0, 0, 0, 1)">]
</span><span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)">:
    ftp.login(username, passwd)
</span><span style="color: rgba(0, 0, 255, 1)">except</span><span style="color: rgba(0, 0, 0, 1)"> ftplib.error_perm:
    </span><span style="color: rgba(0, 0, 255, 1)">print</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">ERROR: cannot login anonymously</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">
    ftp.quit()
    </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> None
</span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> ftp

if name == "main":
info_list = ["10.19.3.199", "fastupdate_amap", "@utonavi&A.map"]
ftp = ftpconnect(info_list)
if not ftp:
exit(1)
bufsize = 1024
fname = "20150416113942674.tar.gz"
fp = open(os.path.join(".", fname), 'wb')
remotefile = os.path.join("/ADF++", fname)
ftp.retrbinary("RETR " + remotefile, fp.write, bufsize)
</span><span style="color: rgba(0, 128, 0, 1)">#</span><span style="color: rgba(0, 128, 0, 1)">是否有目录，没有就创建；有的话看是否有权限创建</span>
a =<span style="color: rgba(0, 0, 0, 1)"> ftp.dir()
</span><span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)">:
    ftp.cwd(</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">jimi</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 0, 255, 1)">except</span><span style="color: rgba(0, 0, 0, 1)"> ftplib.error_perm:
    </span><span style="color: rgba(0, 0, 255, 1)">try</span><span style="color: rgba(0, 0, 0, 1)">:
        ftp.mkd(</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">jimi</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
    </span><span style="color: rgba(0, 0, 255, 1)">except</span><span style="color: rgba(0, 0, 0, 1)"> ftplib.error_perm:
        </span><span style="color: rgba(0, 0, 255, 1)">print</span> <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">WARNING: U have no authority to make dir</span><span style="color: rgba(128, 0, 0, 1)">"</span>
<span style="color: rgba(0, 0, 255, 1)">finally</span><span style="color: rgba(0, 0, 0, 1)">:
    ftp.quit()</span></pre>

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ftp 例子参考链接

http://www.example-code.com/python/ftp.asp

python ftplib模块

函数释义

例 1：下载、上传文件

例 2：上传、下载文件 / 目录

例 3：异常处理

ftp 例子参考链接

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python ftplib模块