================== file tree
"""Make HTML List of Files from a directory."""
import os
for i in os.listdir('./'):
    print '<li><a href="' + i + '">' + \
        i.split('.')[0].replace('_', ' ') + '</a></li>'

================== UDP protocol
The server:

import socket
 
PORT = 10000
BUFLEN = 512
 
server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
server.bind(('', PORT))
 
while True:
        (message, address) = server.recvfrom(BUFLEN)
        print 'Received packet from %s:%d' % (address[0], address[1])
        print 'Data: %s' % message

The client (replace "127.0.0.1" by the IP address of the server):

import socket
 
SERVER_ADDRESS = '127.0.0.1'
SERVER_PORT = 10000
 
client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
 
for i in range(3):
        print 'Sending packet %d' % i
        message = 'This is packet %d' % i
        client.sendto(message, (SERVER_ADDRESS, SERVER_PORT))
 
client.close()
===== html
import getpass,string,sys,win32com.client
from win32com.client import DispatchBaseClass

cfgfile=sys.path[0]+'/sqlaerrorlog.cfg'

print
pw = getpass.getpass()
uid = getpass.getuser()

htmfile = open('C:\\Documents and Settings\\All Users\\DESKTOP\\Logs\\SQLErrorLog.htm','w')

htmfile.write('<TITLE>SQL Server Error Logs</TITLE>\n')

for line in open(cfgfile,'r').readlines():
	if line[0]<>'#':
		servers = string.split(string.strip(line),',')
		svr=servers[0]
		auth=servers[1]

		print '%s (%s)' % (svr,auth)

		htmfile.write('<TABLE WIDTH=100% CELLPADDING=2 BORDER=2>\n')

		htmfile.write('<TR>\n')
		htmfile.write('<TD BGCOLOR=#D4D4D4 ALIGN=CENTER VALIGN=top WIDTH=10%><B><FONT FACE="ARIAL" SIZE=2>' + svr + '</FONT></B></TD>\n')
		htmfile.write('<TD BGCOLOR=#D4D4D4 ALIGN=CENTER VALIGN=top WIDTH=90%><B><FONT FACE="ARIAL" SIZE=2>SQL Log Entry</FONT></B></TD>\n')
		htmfile.write('</TR>\n')
# .....
htmfile.write('</TABLE>\n')

htmfile.close()
adoConn = None

xit = raw_input('\nPress Enter...')

===== diff two dictionaries
KEYNOTFOUND = '<KEYNOTFOUND>'       # KeyNotFound for dictDiff

def dict_diff(first, second):
    """ Return a dict of keys that differ with another config object.  If a value is
        not found in one fo the configs, it will be represented by KEYNOTFOUND.
        @param first:   Fist dictionary to diff.
        @param second:  Second dicationary to diff.
        @return diff:   Dict of Key => (first.val, second.val)
    """
    diff = {}
    # Check all keys in first dict
    for key in first.keys():
        if (not second.has_key(key)):
            diff[key] = (first[key], KEYNOTFOUND)
        elif (first[key] != second[key]):
            diff[key] = (first[key], second[key])
    # Check all keys in second dict to find missing
    for key in second.keys():
        if (not first.has_key(key)):
            diff[key] = (KEYNOTFOUND, second[key])
    return diff

===== F --> C  conversion
def f2c(f):
    c = (f-32)*5.0/9.0
    print '%.1f F = %.1f C\n' % (f, c)

def c2f(c):
    f = c * 9/5 + 32
    print '%.1f C = %.1f F\n' % (c, f)

===== create SHA Hashes of a Directory
import sha
import os
def createsha(directory):
    """Walk through a Directory creating Sha Hashes of each file path"""
    for root, dirs, files in os.walk(str(directory)):
        for name in files:
	    filepath = os.path.join(root, name)
	    value = sha.new(open(filepath, 'rb').read()).hexdigest()
	    print value, '*%s' % filepath