دسترسی به LAN و اینترنت

دسترسی به LAN و اینترنت

برخی ماژول های استاندارد پایتون که برای دسترسی به منابع وب:

ماژول os:

ماژول socket:

ماژول email:

ماژول ftplib:

ماژول  urllib:

ماژول httplib:

IronPython:

 Jython:

Pywin32:

دسترسی به فایل به اشتراک گذاشته شده در پایتون

>>> import os
>>> d = os.listdir('\\192.168.1.3\shared')

Traceback (most recent call last):
  File "", line 1, in 
    d = os.listdir('\\192.168.1.3\shared')
WindowsError: [Error 3] The system cannot find the path specified: '\\192.168.1.3\\shared/*.*'
>>> d = os.listdir('\\\\192.168.1.3\\shared')
>>> d
['serverfile.txt']
>>> type(d)

>>> f = open('\\\\192.168.1.3\\shared\\testdoc.txt', 'w')
>>> f.write('Hello there from across the network.')
>>> f.close()

#Adapted from stackoverflow.com

import os
import shutil
path = os.path.join("C:/", "files")
destination = os.path.join('\\\\192.168.1.3', 'shared')
for r,d,f in os.walk(path):
    for files in f:
        if files.endswith('.txt'):
            try:
                shutil.copy(os.path.join(r,files), destination)
            except IOError, e:
                print e

تفاوت URI، URL و URN در مفاهیم وب

دسترسی به صفحات وب در پایتون

>>> import urllib
>>> import sys
>>> wp = urllib.urlopen('http://www.google.com')
>>> for line in wp:
	sys.stdout.write(line)

	

>>> wp = urllib.urlopen('http://www.google.com')
>>> print wp.info()
Date: Mon, 05 Dec 2016 10:45:12 GMT
Expires: -1
Cache-Control: private, max-age=0
Content-Type: text/html; charset=ISO-8859-1
P3P: CP="This is not a P3P policy! See https://www.google.com/support/accounts/answer/151657?hl=en for more info."
Server: gws
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
Set-Cookie: NID=91=NNFPpYdi73toxh3YkFkWqh9CzBPkZ9aUP3H5FGe5RLLbDQhvT9gZrh3bdUDw_fIr0dm1_OGZ06qfbjivzYRa1QnI71rfVQM92XJS8GZ_SMd-Z-P42YXh_4Wb12Xbz16sJrlydtggnufR8ag; expires=Tue, 06-Jun-2017 10:45:12 GMT; path=/; domain=.google.com; HttpOnly
Accept-Ranges: none
Vary: Accept-Encoding
Connection: close

>>> import urllib
>>> redirect = urllib.urlopen('http://garageband.com/michael_jackson4.mp3')
>>> redirect.geturl()
'http://www.apple.com/mac/garageband/?cid=oas-us-domains-garageband.com'

تابع urlretrieve:

>>> urllib.urlretrieve('http://www.python.org', 'C:/files/py.html')
('C:/files/py.html', )

mapping در پایتون

نگاشت (mapping) یک درایو در ویندوز به یک آدرس اشتراکی 

###Adapted from ozoneasylum.com

import win32wnet
from win32netcon import RESOURCETYPE_DISK as DISK
drive_letter = "R:"
path = "\\\\192.168.1.3\\shared"
win32wnet.WNetAddConnection2(DISK, drive_letter, path)

استفاده از پایتون به عنوان FTP client  (file transfer protocol):

>>> from ftplib import FTP

>>> ftp = FTP('ftp.redhat.com')
>>> type(ftp)

>>> ftp.login()
'230 Login successful.'
>>> d = 'redhat/linux'
>>> ftp.cwd(d)
'250 Directory successfully changed.'
>>> print ftp.dir()
-rw-r--r--    1 ftp      ftp           131 Dec 20  2005 README
drwxr-xr-x    8 ftp      ftp          4096 Dec 06  2012 beta
drwxr-xr-x    6 ftp      ftp          4096 Jun 14  2007 eal
drwxrwsr-x   18 ftp      ftp          4096 May 18  2016 enterprise
drwxr-xr-x    2 ftp      ftp          4096 Feb 12  2006 preview
drwxr-xr-x    2 ftp      ftp          4096 Dec 03  2008 rawhide
drwxrwsr-x    4 ftp      ftp          4096 Sep 26  2008 updates
None

#Adapted from effbot.org

import ftplib
import sys
import os
def ftext(ftp, filename, outfile = None):
    #fetch a text file
    if outfile is None:
        #outfile = sys.stdout
        outfile = open('C:/Python27/outfile.txt', 'w')
    # Lambda expression to add newlines to the lines read from file
    ftp.retrlines("RETR" + filename, lambda s, w=outfile.write: w(s+"\n"))

def fbin(ftp, filename, outfile = None):
    #fetch a binary file
    if outfile is None:
        #outfile = sys.stdout
        outfile = open('C:/Python27/outfile.txt', 'w')
    # Lambda expression to add newlines to the lines read from file
    ftp.retrbinary("RETR" + filename, outfile.write)

ftp = ftplib.FTP("ftp.redhat.com")
ftp.login()
d = 'redhat/dst2007/README'
ftp.cwd(d)
ftext(ftp, "README_FIRST.txt")
#fbin(ftp, "README_FIRST.txt")
ftp.close()
print 'Current working directory is: ', os.getcwd(), '\n'