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#netstate-anov_deadloop.py

# works for windows XP SP-2, python2.5
from subprocess import call
import time
import sys

default_netstat_arglist = "-anov"

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python2.6.5
help("BaseHTTPServer")

It seems that HTTPServer become heavy after it inherits many methods from TCPServer.

Through BASEServer to TCPServer to HTTPServer, in my view it's better to be a pipe-lined structure.  I hope HTTPServer could be something like a plugin for TCPServer or BASEServer, because I think the registration mechanism seems to be better than inheritance. 

Statistically, the model for Parent Classes are probably much stabler than Child classes. Parent Classes are like infrastrcture. Usually, infrastructure tends to change less frequently than Child classes. The Child Classes don't need to get himself bound with the Parent classes too much, which limit their freedom. 

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A nice way to judge python version by import statement:

https://github.com/facebook/tornado/blob/master/tornado/web.py

try:
    from io import BytesIO # python 3
except ImportError:
    from cStringIO import StringIO as BytesIO # python 2

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The following lines could be moved to a separate function from def clear

line 248:
        if (not self.request.supports_http_1_1() and
            getattr(self.request, 'connection', None) and
                not self.request.connection.no_keep_alive):
            conn_header = self.request.headers.get("Connection")
            if conn_header and (conn_header.lower() == "keep-alive"):
                self._headers["Connection"] = "Keep-Alive"

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#!/usr/bin/python

# shows a simple example on how to use optparse module
# works under python2.6.5

# usage 1: 
# python optparse_exampe_1.py -o output.txt
# usage 2: 
# python optparse_exampe_1.py --help
# usage 3:

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#!/usr/bin/python

# usage: 
# python optparse_getoptcomparison.py -o output.txt
# works under python2.6.5

# the source of this snippet is from Doug Hellmann's Python Module of The Week
# http://pymotw.com/2/optparse/index.html

import optparse

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coverage.py usage command
coverage help classic

========

coverage -rm api/*  （show statistics result for files under the path of api）
name@namevirtual:~/.jenkins/jobs/test_coverage/workspace$ coverage -rm namell/api/*
Name                           Stmts   Miss  Cover   Missing
------------------------------------------------------------

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#!/usr/bin/env python
# Copyright 2008 Brett Slatkin
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software

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#!/usr/bin/python

# simplistic demo
# refer to the api doc of the website for more api interfaces and usage
import urllib

developer_key = "something_you_should_change_here"
REQUEST_URL = "http://api.crunchbase.com/v/1/company/facebook.js?api_key=%s" % developer_key

print "CHECK REQUEST URL:", REQUEST_URL

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#!/usr/bin/python

# the demo code is from https://pypi.python.org/pypi/XlsxWriter

import xlsxwriter


# Create an new Excel file and add a worksheet.
workbook = xlsxwriter.Workbook('demo.xlsx')
worksheet = workbook.add_worksheet()