167.html ( File view )

  • By 2010-08-21
  • View(s):12
  • Download(s):0
  • Point(s): 1
			






Safari | Python Developer's Handbook -> FTP





< BACKMake Note | BookmarkCONTINUE >
152015024128143245168232148039199167010047123209178152124239215162148046198036103125002030

FTP

FTP is a popular way to transfer files from machine to machine across a network. It is convenient because there are FTP clients and FTP servers written for all the popular platforms.

FTP servers can work with both private users and anonymous users. The difference is that a private FTP server allows only system users to be able to connect via FTP, whereas an anonymous FTP server allows anyone on the network to connect to it and transfer files without having an account. Keep in mind that configuring an anonymous FTP server always exposes the security of your system.

The ftplib module implements the client side of the FTP protocol. You can use it for mirroring FTP sites. Usually the urllib module is used as an outer interface to ftplib. For uploads you probably want to use ftplib.

The FTP implementation provides one control port and one data port, which means that the actual transmission of data between client and server machines operates over a separate socket on a completely separate port in order to avoid deadlock problems.

Check out the Python Documentation for more information:

					
http://www.python.org/doc/lib/module-ftplib.html
				

Transferring Data

The following example shows how to read data from a FTP site:

						
 1: #!/usr/local/bin/python
 2: import ftplib
 3: ftp = ftplib.FTP('ftp.lessaworld.com')
 4: ftp.login()
 5: ftp.cwd('downloads/programs')
 6: ftp.retrlines('LIST')
 7: file = open('filename.txt', 'w')
 8: ftp.retrbinary('RETR filename.txt', file.write, 1024)
 9: ftp.quit()
				
					

Line 2: Imports the ftplib module.

Line 3: Creates the FTP object and connects to a host server.

Line 4: Establishes an anonymous login.

Line 5: Uses the cwd() method to change the directory.

Line 6: Retrieves the resulting lines of the provided command. In our case, it lists the content of the directory.

Line 7: Creates a file on your local server.

Line 8: Retrieves the binary information passed to the FTP server, storing it into the mentioned file object.

Tip

Note that the interface uses FTP commandssuch as LIST, STOR, and RETRthat you need to know. These commands are part of the FTP specification and have nothing to do with Python.



The next example uploads a file to the FTP server:

						
1: import ftplib
2: ftp = ftblib.FTP("ftp.lessaworld.com")
3: ftp.login("username", "password")
4: filename = "index.html"
5: ftp.storlines("STOR " + filename, open(filename))
6: filename = "app.exe "
7: ftp.storbinary("STOR " + filename, open(filename, "rb"), 1024)

					

Line 3: Provides a username and password to the FTP server in order to establish a connection.

Line 5: Uploads a TEXT file to the server.

Line 7: Uploads a binary file to the server.


Last updated on 1/30/2002
Python Developer's Handbook, © 2002 Sams Publishing

< BACKMake Note | BookmarkCONTINUE >

Index terms contained in this section

anonymous FTP servers
control ports
data
     transferring
            FTP sites
data ports
File Transfer Protocol (FTP)
files
      uploading to FTP servers
FTP (File Transfer Protocol)
FTP sites
      transferring data
ftplib module
modules
      ftplib
      urllib
networking
      protocols
ports
      control
      data
private FTP servers
protocols
      File Transfer (FTP)
servers
      anonymous FTP
     FTP
            uploading files
      private FTP
sites
     FTP
            transferring data
transferring
     data
            FTP sites
uploading
      files to FTP servers
urllib module

2002, O'Reilly & Associates, Inc.

...
Expand> <Close

Want complete source code? Download it here

Point(s): 1

Download
0 lines left, continue to read
Sponsored links

File list

Tips: You can preview the content of files by clicking file names^_^
Name Size Date
0672319942.html3.37 kB01-06-02 20:06
1.html5.10 kB01-06-02 20:06
10.html3.69 kB01-06-02 20:06
100.html5.41 kB01-06-02 20:06
101.html7.96 kB01-06-02 20:06
102.html3.75 kB01-06-02 20:06
103.html3.75 kB01-06-02 20:06
104.html5.81 kB01-06-02 20:06
105.html16.46 kB01-06-02 20:06
106.html25.87 kB01-06-02 20:06
107.html7.44 kB01-06-02 20:06
108.html20.95 kB01-06-02 20:06
109.html10.02 kB01-06-02 20:06
11.html3.66 kB01-06-02 20:06
110.html9.58 kB01-06-02 20:06
111.html9.96 kB01-06-02 20:06
112.html11.34 kB01-06-02 20:06
113.html7.87 kB01-06-02 20:06
114.html13.56 kB01-06-02 20:06
115.html3.76 kB01-06-02 20:06
116.html3.76 kB01-06-02 20:06
117.html4.27 kB01-06-02 20:06
118.html4.27 kB01-06-02 20:06
119.html9.45 kB01-06-02 20:06
12.html3.66 kB01-06-02 20:06
120.html8.62 kB01-06-02 20:06
121.html65.99 kB01-06-02 20:06
122.html28.42 kB01-06-02 20:06
123.html14.92 kB01-06-02 20:06
124.html7.17 kB01-06-02 20:06
125.html24.21 kB01-06-02 20:06
126.html10.82 kB01-06-02 20:06
127.html10.54 kB01-06-02 20:06
128.html3.86 kB01-06-02 20:06
129.html3.86 kB01-06-02 20:06
13.html12.82 kB01-06-02 20:06
130.html5.85 kB01-06-02 20:06
131.html5.30 kB01-06-02 20:06
132.html29.95 kB01-06-02 20:06
133.html61.54 kB01-06-02 20:06
134.html40.34 kB01-06-02 20:06
135.html9.11 kB01-06-02 20:06
136.html15.53 kB01-06-02 20:06
137.html3.86 kB01-06-02 20:06
138.html3.86 kB01-06-02 20:06
139.html5.80 kB01-06-02 20:06
14.html11.79 kB01-06-02 20:06
140.html14.32 kB01-06-02 20:06
141.html26.46 kB01-06-02 20:06
142.html21.93 kB01-06-02 20:06
143.html17.03 kB01-06-02 20:06
144.html7.95 kB01-06-02 20:06
145.html28.59 kB01-06-02 20:06
146.html52.14 kB01-06-02 20:06
147.html8.37 kB01-06-02 20:06
148.html3.63 kB01-06-02 20:06
149.html3.63 kB01-06-02 20:06
15.html10.93 kB01-06-02 20:06
150.html4.42 kB01-06-02 20:06
151.html16.23 kB01-06-02 20:06
152.html32.55 kB01-06-02 20:06
153.html13.13 kB01-06-02 20:06
154.html28.33 kB01-06-02 20:06
155.html40.15 kB01-06-02 20:06
156.html23.47 kB01-06-02 20:06
157.html7.73 kB01-06-02 20:06
158.html10.61 kB01-06-02 20:06
159.html3.72 kB01-06-02 20:06
16.html11.42 kB01-06-02 20:06
160.html3.72 kB01-06-02 20:06
161.html3.64 kB01-06-02 20:06
162.html3.64 kB01-06-02 20:06
163.html4.70 kB01-06-02 20:06
164.html60.18 kB01-06-02 20:06
165.html42.25 kB01-06-02 20:06
166.html17.91 kB01-06-02 20:06
167.html9.76 kB01-06-02 20:06
168.html13.52 kB01-06-02 20:06
169.html10.35 kB01-06-02 20:06
17.html17.40 kB01-06-02 20:06
170.html9.08 kB01-06-02 20:06
171.html3.61 kB01-06-02 20:06
172.html3.61 kB01-06-02 20:06
173.html6.95 kB01-06-02 20:06
174.html27.86 kB01-06-02 20:06
175.html28.55 kB01-06-02 20:06
176.html16.39 kB01-06-02 20:06
177.html24.60 kB01-06-02 20:06
178.html10.20 kB01-06-02 20:06
179.html3.62 kB01-06-02 20:06
18.html12.04 kB01-06-02 20:06
180.html3.62 kB01-06-02 20:06
181.html7.21 kB01-06-02 20:06
182.html11.83 kB01-06-02 20:06
183.html17.37 kB01-06-02 20:06
184.html87.57 kB01-06-02 20:06
185.html25.23 kB01-06-02 20:06
186.html6.62 kB01-06-02 20:06
187.html3.73 kB01-06-02 20:06
188.html3.73 kB01-06-02 20:06
189.html4.76 kB01-06-02 20:06
19.html5.49 kB01-06-02 20:06
190.html74.34 kB01-06-02 20:06
191.html9.56 kB01-06-02 20:06
192.html31.86 kB01-06-02 20:06
193.html67.73 kB01-06-02 20:06
194.html69.48 kB01-06-02 20:06
195.html32.75 kB01-06-02 20:06
196.html10.74 kB01-06-02 20:06
197.html3.54 kB01-06-02 20:06
198.html3.54 kB01-06-02 20:06
199.html3.81 kB01-06-02 20:06
2.html5.10 kB01-06-02 20:06
20.html9.25 kB01-06-02 20:06
200.html3.81 kB01-06-02 20:06
201.html8.82 kB01-06-02 20:06
202.html7.07 kB01-06-02 20:06
203.html50.32 kB01-06-02 20:06
204.html8.07 kB01-06-02 20:06
205.html7.53 kB01-06-02 20:06
206.html3.60 kB01-06-02 20:06
207.html3.60 kB01-06-02 20:06
208.html7.22 kB01-06-02 20:06
209.html21.63 kB01-06-02 20:06
21.html5.84 kB01-06-02 20:06
210.html24.67 kB01-06-02 20:06
211.html30.17 kB01-06-02 20:06
212.html159.15 kB01-06-02 20:06
213.html18.72 kB01-06-02 20:06
214.html6.54 kB01-06-02 20:06
215.html7.22 kB01-06-02 20:06
216.html6.76 kB01-06-02 20:06
217.html3.11 kB01-06-02 20:06
218.html3.54 kB01-06-02 20:06
219.html4.14 kB01-06-02 20:06
22.html3.69 kB01-06-02 20:06
220.html4.14 kB01-06-02 20:06
221.html4.82 kB01-06-02 20:06
222.html50.92 kB01-06-02 20:06
223.html3.87 kB01-06-02 20:06
224.html57.67 kB01-06-02 20:06
225.html37.66 kB01-06-02 20:06
226.html5.04 kB01-06-02 20:06
227.html3.85 kB01-06-02 20:06
228.html3.85 kB01-06-02 20:06
229.html4.47 kB01-06-02 20:06
23.html3.69 kB01-06-02 20:06
230.html21.41 kB01-06-02 20:06
231.html19.56 kB01-06-02 20:06
232.html26.27 kB01-06-02 20:06
233.html10.07 kB01-06-02 20:06
234.html22.22 kB01-06-02 20:06
235.html36.83 kB01-06-02 20:06
236.html49.23 kB01-06-02 20:06
237.html16.63 kB01-06-02 20:06
238.html6.96 kB01-06-02 20:06
239.html3.09 kB01-06-02 20:06
24.html4.86 kB01-06-02 20:06
240.html3.43 kB01-06-02 20:06
241.html3.59 kB01-06-02 20:06
242.html3.59 kB01-06-02 20:06
243.html17.49 kB01-06-02 20:06
244.html9.38 kB01-06-02 20:06
245.html16.62 kB01-06-02 20:06
246.html9.81 kB01-06-02 20:06
247.html11.50 kB01-06-02 20:06
248.html8.95 kB01-06-02 20:06
249.html8.93 kB01-06-02 20:06
25.html11.48 kB01-06-02 20:06
250.html10.89 kB01-06-02 20:06
251.html8.21 kB01-06-02 20:06
252.html5.14 kB01-06-02 20:06
253.html3.61 kB01-06-02 20:06
254.html3.61 kB01-06-02 20:06
255.html4.61 kB01-06-02 20:06
256.html4.61 kB01-06-02 20:06
257.html43.07 kB01-06-02 20:06
258.html10.12 kB01-06-02 20:06
259.html7.99 kB01-06-02 20:06
26.html25.88 kB01-06-02 20:06
260.html17.17 kB01-06-02 20:06
261.html10.99 kB01-06-02 20:06
262.html15.70 kB01-06-02 20:06
263.html36.19 kB01-06-02 20:06
264.html61.93 kB01-06-02 20:06
265.html39.81 kB01-06-02 20:06
266.html15.13 kB01-06-02 20:06
267.html16.34 kB01-06-02 20:06
268.html3.55 kB01-06-02 20:06
269.html3.55 kB01-06-02 20:06
27.html27.92 kB01-06-02 20:06
270.html14.30 kB01-06-02 20:06
271.html14.21 kB01-06-02 20:06
272.html9.44 kB01-06-02 20:06
273.html8.41 kB01-06-02 20:06
274.html5.45 kB01-06-02 20:06
275.html5.45 kB01-06-02 20:06
276.html8.08 kB01-06-02 20:06
277.html9.78 kB01-06-02 20:06
278.html6.04 kB01-06-02 20:06
279.html6.89 kB01-06-02 20:06
28.html12.02 kB01-06-02 20:06
280.html11.77 kB01-06-02 20:06
281.html10.18 kB01-06-02 20:06
282.html4.98 kB01-06-02 20:06
283.html4.98 kB01-06-02 20:06
284.html4.12 kB01-06-02 20:06
285.html5.78 kB01-06-02 20:06
286.html12.42 kB01-06-02 20:06
287.html6.87 kB01-06-02 20:06
29.html45.69 kB01-06-02 20:06
3.html5.51 kB01-06-02 20:06
30.html10.03 kB01-06-02 20:06
31.html23.06 kB01-06-02 20:06
32.html22.26 kB01-06-02 20:06
33.html18.88 kB01-06-02 20:06
34.html18.25 kB01-06-02 20:06
35.html15.70 kB01-06-02 20:06
36.html5.50 kB01-06-02 20:06
37.html11.83 kB01-06-02 20:06
38.html3.69 kB01-06-02 20:06
39.html3.69 kB01-06-02 20:06
4.html5.51 kB01-06-02 20:06
40.html8.24 kB01-06-02 20:06
41.html12.92 kB01-06-02 20:06
42.html4.51 kB01-06-02 20:06
43.html3.90 kB01-06-02 20:06
44.html3.52 kB01-06-02 20:06
45.html5.99 kB01-06-02 20:06
46.html4.33 kB01-06-02 20:06
47.html4.19 kB01-06-02 20:06
48.html4.01 kB01-06-02 20:06
49.html3.95 kB01-06-02 20:06
5.html4.69 kB01-06-02 20:06
50.html3.63 kB01-06-02 20:06
51.html3.75 kB01-06-02 20:06
52.html5.56 kB01-06-02 20:06
53.html4.41 kB01-06-02 20:06
54.html6.99 kB01-06-02 20:06
55.html3.52 kB01-06-02 20:06
56.html3.95 kB01-06-02 20:06
57.html3.69 kB01-06-02 20:06
58.html4.27 kB01-06-02 20:06
59.html3.88 kB01-06-02 20:06
6.html4.69 kB01-06-02 20:06
60.html3.58 kB01-06-02 20:06
61.html4.17 kB01-06-02 20:06
62.html3.93 kB01-06-02 20:06
63.html3.68 kB01-06-02 20:06
64.html4.16 kB01-06-02 20:06
65.html4.04 kB01-06-02 20:06
66.html4.97 kB01-06-02 20:06
67.html3.91 kB01-06-02 20:06
68.html3.55 kB01-06-02 20:06
69.html3.51 kB01-06-02 20:06
7.html10.67 kB01-06-02 20:06
70.html3.52 kB01-06-02 20:06
71.html3.83 kB01-06-02 20:06
72.html4.02 kB01-06-02 20:06
73.html21.61 kB01-06-02 20:06
74.html12.94 kB01-06-02 20:06
75.html31.26 kB01-06-02 20:06
76.html11.98 kB01-06-02 20:06
77.html4.24 kB01-06-02 20:06
78.html4.26 kB01-06-02 20:06
79.html10.95 kB01-06-02 20:06
8.html10.67 kB01-06-02 20:06
80.html12.11 kB01-06-02 20:06
81.html4.88 kB01-06-02 20:06
82.html6.48 kB01-06-02 20:06
83.html5.64 kB01-06-02 20:06
84.html13.30 kB01-06-02 20:06
85.html7.00 kB01-06-02 20:06
86.html3.90 kB01-06-02 20:06
87.html4.59 kB01-06-02 20:06
88.html5.00 kB01-06-02 20:06
89.html17.71 kB01-06-02 20:06
9.html3.69 kB01-06-02 20:06
90.html6.00 kB01-06-02 20:06
91.html3.68 kB01-06-02 20:06
92.html3.68 kB01-06-02 20:06
93.html12.98 kB01-06-02 20:06
94.html10.60 kB01-06-02 20:06
95.html19.93 kB01-06-02 20:06
96.html10.34 kB01-06-02 20:06
97.html6.27 kB01-06-02 20:06
98.html6.77 kB01-06-02 20:06
99.html16.97 kB01-06-02 20:06
front_matter.html4.16 kB01-06-02 20:06
index.html3.37 kB01-06-02 20:06
new_toc.html15.79 kB01-06-02 20:06
rindex1.html53.02 kB01-06-02 20:05
rindex10.html5.16 kB01-06-02 20:05
rindex11.html3.96 kB01-06-02 20:05
rindex12.html15.07 kB01-06-02 20:05
rindex13.html84.43 kB01-06-02 20:05
rindex14.html10.85 kB01-06-02 20:05
rindex15.html26.04 kB01-06-02 20:05
rindex16.html58.33 kB01-06-02 20:05
rindex17.html3.52 kB01-06-02 20:05
rindex18.html16.83 kB01-06-02 20:05
rindex19.html52.89 kB01-06-02 20:05
rindex2.html13.47 kB01-06-02 20:05
rindex20.html17.55 kB01-06-02 20:05
rindex21.html13.56 kB01-06-02 20:05
rindex22.html10.63 kB01-06-02 20:05
rindex23.html16.92 kB01-06-02 20:05
rindex24.html4.90 kB01-06-02 20:05
rindex25.html2.50 kB01-06-02 20:05
rindex3.html43.59 kB01-06-02 20:06
rindex4.html21.76 kB01-06-02 20:06
rindex5.html22.31 kB01-06-02 20:06
rindex6.html36.57 kB01-06-02 20:06
rindex7.html14.06 kB01-06-02 20:06
rindex8.html11.93 kB01-06-02 20:06
rindex9.html25.33 kB01-06-02 20:06
toc.html24.97 kB01-06-02 20:06
<(ebook>0.00 BPython) O'Reilly
<0672319942>0.00 B25-08-02 17:24
<graphics>0.00 B25-08-02 17:24
<images>0.00 B25-08-02 17:24
<oreillyi>0.00 B25-08-02 17:24
oreillyM.css4.42 kB31-05-02 17:16
oreillyN.css4.42 kB31-05-02 17:16
00.gif41.00 B31-05-02 17:16
01fig01.gif58.03 kB28-01-02 08:54
01fig02.gif39.76 kB28-01-02 08:54
01fig03.gif22.06 kB28-01-02 08:54
01fig04.gif64.75 kB28-01-02 08:54
02fig01.gif54.48 kB28-01-02 08:54
02fig02.gif16.29 kB28-01-02 08:54
02fig03.gif14.11 kB28-01-02 08:54
02fig04.gif47.82 kB28-01-02 08:54
06fig01.gif32.19 kB28-01-02 08:54
06fig02.gif58.39 kB28-01-02 08:54
06fig03.gif48.96 kB28-01-02 08:54
07fig01.gif47.96 kB28-01-02 08:54
07fig02.gif8.99 kB28-01-02 08:54
07fig03.gif9.46 kB28-01-02 08:54
07fig04.gif11.51 kB28-01-02 08:54
07fig05.gif8.27 kB28-01-02 08:54
07fig06.gif31.46 kB28-01-02 08:54
12fig01.gif34.54 kB28-01-02 08:54
15fig01.gif1.30 kB28-01-02 08:54
15fig02.gif1.50 kB28-01-02 08:54
15fig03.gif5.93 kB28-01-02 08:54
15fig04.gif924.00 B28-01-02 08:54
15fig05.gif1.55 kB28-01-02 08:54
15fig06.gif1.62 kB28-01-02 08:54
15fig07.gif1.69 kB28-01-02 08:54
15fig08.gif1.02 kB28-01-02 08:54
15fig09.gif2.54 kB28-01-02 08:54
15fig10.gif1.92 kB28-01-02 08:54
15fig11.gif2.44 kB28-01-02 08:54
15fig12.gif2.48 kB28-01-02 08:54
15fig13.gif2.36 kB28-01-02 08:54
15fig14.gif5.43 kB28-01-02 08:54
15fig15.gif5.51 kB28-01-02 08:54
15fig16.gif2.18 kB28-01-02 08:54
15fig17.gif12.22 kB28-01-02 08:54
16fig01.gif28.99 kB28-01-02 08:54
16fig02.gif23.02 kB28-01-02 08:54
16fig03.gif32.48 kB28-01-02 08:54
16fig04.gif17.27 kB28-01-02 08:54
16fig05.gif23.88 kB28-01-02 08:54
16fig06.gif23.85 kB28-01-02 08:54
16fig07.gif36.76 kB28-01-02 08:54
16fig08.gif20.66 kB28-01-02 08:54
16fig09.gif71.63 kB28-01-02 08:54
16fig10.gif23.23 kB28-01-02 08:54
16fig11.gif22.97 kB28-01-02 08:54
16fig12.gif22.06 kB28-01-02 08:54
16fig13.gif49.73 kB28-01-02 08:54
16fig14.gif60.34 kB28-01-02 08:54
18fig01.gif63.94 kB28-01-02 08:54
18fig02.gif24.07 kB28-01-02 08:54
ccc.gif109.00 B28-01-02 08:54
spacer.gif41.00 B31-05-02 17:16
view.gif41.00 B31-05-02 17:16
0672319942_s.jpg2.91 kB29-01-02 11:29
...
Sponsored links

167.html (1.65 MB)

Need 1 point
Your Point(s)

Your Point isn't enough.

Get point immediately by PayPal

More(Debit card / Credit card / PayPal Credit / Online Banking)

Submit your source codes. Get more point

LOGIN

Don't have an account? Register now
Need any help?
Mail to: support@codeforge.com

切换到中文版?

CodeForge Chinese Version
CodeForge English Version

Where are you going?

^_^"Oops ...

Sorry!This guy is mysterious, its blog hasn't been opened, try another, please!
OK

Warm tip!

CodeForge to FavoriteFavorite by Ctrl+D