Python帮助函数调试函数 用于获取对象的属性及属性值
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Python帮助函数调试函数 用于获取对象的属性及属性值
刚接触Python，上篇 《Python入门》第一个Python Web程序——简单的Web服务器 中调试非常不方便，不知道对象详细有什么属性，包括什么值，所以写了一个函数。用于获取对象的属性及属性值
函数代码例如以下：
#调试函数。用于输出对象的属性及属性值 def getAllAttrs(obj): strAttrs = ‘‘ for o in dir(obj): strAttrs =strAttrs + o + ‘ := ‘ + str(getattr(obj,o)) + ‘<br />‘ return strAttrs;详细应用代码：
import os #Python的标准库中的os模块包括普遍的操作系统功能
from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler #导入HTTP处理相关的模块
#调试函数。用于输出对象的属性及属性值
def getAllAttrs(obj):
strAttrs = ‘‘
for o in dir(obj):
strAttrs =strAttrs + o + ‘ := ‘ + str(getattr(obj,o)) + ‘<br />‘
return strAttrs;
#自己定义处理程序。用于处理HTTP请求
class TestHTTPHandler(BaseHTTPRequestHandler):
#处理GET请求
def do_GET(self):
#页面输出模板字符串
templateStr = ‘‘‘
<html>
<head>
<title>QR Link Generator</title>
</head>
<body>
%s
</body>
</html> ‘‘‘
self.protocal_version = ‘HTTP/1.1‘ #设置协议版本号
self.send_response(200) #设置响应状态码
self.send_header("Welcome", "Contect") #设置响应头
self.end_headers()
self.wfile.write(templateStr % getAllAttrs(self)) #输出响应内容
#启动服务函数
def start_server(port):
http_server = HTTPServer((‘‘, int(port)), TestHTTPHandler)
http_server.serve_forever() #设置一直监听并接收请求
os.chdir(‘static‘) #改变工作文件夹到 static 文件夹
start_server(8000) #启动服务。监听8000端口输出例如以下：MessageClass := mimetools.Message
__doc__ := None
__init__ := >
__module__ := __main__
address_string := >
client_address := (‘127.0.0.1‘, 38178)
close_connection := 1
command := GET
connection :=
date_time_string := >
default_request_version := HTTP/0.9
disable_nagle_algorithm := False
do_GET := >
end_headers := >
error_content_type := text/html
error_message_format :=
Error response
Error code %(code)d.
Message: %(message)s.
Error code explanation: %(code)s = %(explain)s.
finish := >
handle := >
handle_one_request := >
headers := Host: localhost:8000 Connection: keep-alive Pragma: no-cache Cache-Control: no-cache Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Upgrade-Insecure-Requests: 1 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36 Accept-Encoding: gzip, deflate, sdch Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.6,en;q=0.4,en-GB;q=0.2 Cookie: bdshare_firstime=1451130349627
log_date_time_string := >
log_error := >
log_message := >
log_request := >
monthname := [None, ‘Jan‘, ‘Feb‘, ‘Mar‘, ‘Apr‘, ‘May‘, ‘Jun‘, ‘Jul‘, ‘Aug‘, ‘Sep‘, ‘Oct‘, ‘Nov‘, ‘Dec‘]
parse_request := >
path := /
protocal_version := HTTP/1.1
protocol_version := HTTP/1.0
raw_requestline := GET / HTTP/1.1
rbufsize := -1
request :=
request_version := HTTP/1.1
requestline := GET / HTTP/1.1
responses := {200: (‘OK‘, ‘Request fulfilled, document follows‘), 201: (‘Created‘, ‘Document created, URL follows‘), 202: (‘Accepted‘, ‘Request accepted, processing continues off-line‘), 203: (‘Non-Authoritative Information‘, ‘Request fulfilled from cache‘), 204: (‘No Content‘, ‘Request fulfilled, nothing follows‘), 205: (‘Reset Content‘, ‘Clear input form for further input.‘), 206: (‘Partial Content‘, ‘Partial content follows.‘), 400: (‘Bad Request‘, ‘Bad request syntax or unsupported method‘), 401: (‘Unauthorized‘, ‘No permission -- see authorization schemes‘), 402: (‘Payment Required‘, ‘No payment -- see charging schemes‘), 403: (‘Forbidden‘, ‘Request forbidden -- authorization will not help‘), 404: (‘Not Found‘, ‘Nothing matches the given URI‘), 405: (‘Method Not Allowed‘, ‘Specified method is invalid for this resource.‘), 406: (‘Not Acceptable‘, ‘URI not available in preferred format.‘), 407: (‘Proxy Authentication Required‘, ‘You must authenticate with this proxy before proceeding.‘), 408: (‘Request Timeout‘, ‘Request timed out; try again later.‘), 409: (‘Conflict‘, ‘Request conflict.‘), 410: (‘Gone‘, ‘URI no longer exists and has been permanently removed.‘), 411: (‘Length Required‘, ‘Client must specify Content-Length.‘), 412: (‘Precondition Failed‘, ‘Precondition in headers is false.‘), 413: (‘Request Entity Too Large‘, ‘Entity is too large.‘), 414: (‘Request-URI Too Long‘, ‘URI is too long.‘), 415: (‘Unsupported Media Type‘, ‘Entity body in unsupported format.‘), 416: (‘Requested Range Not Satisfiable‘, ‘Cannot satisfy request range.‘), 417: (‘Expectation Failed‘, ‘Expect condition could not be satisfied.‘), 100: (‘Continue‘, ‘Request received, please continue‘), 101: (‘Switching Protocols‘, ‘Switching to new protocol; obey Upgrade header‘), 300: (‘Multiple Choices‘, ‘Object has several resources -- see URI list‘), 301: (‘Moved Permanently‘, ‘Object moved permanently -- see URI list‘), 302: (‘Found‘, ‘Object moved temporarily -- see URI list‘), 303: (‘See Other‘, ‘Object moved -- see Method and URL list‘), 304: (‘Not Modified‘, ‘Document has not changed since given time‘), 305: (‘Use Proxy‘, ‘You must use proxy specified in Location to access this resource.‘), 307: (‘Temporary Redirect‘, ‘Object moved temporarily -- see URI list‘), 500: (‘Internal Server Error‘, ‘Server got itself in trouble‘), 501: (‘Not Implemented‘, ‘Server does not support this operation‘), 502: (‘Bad Gateway‘, ‘Invalid responses from another server/proxy.‘), 503: (‘Service Unavailable‘, ‘The server cannot process the request due to a high load‘), 504: (‘Gateway Timeout‘, ‘The gateway server did not receive a timely response‘), 505: (‘HTTP Version Not Supported‘, ‘Cannot fulfill request.‘)}
rfile :=
send_error := >
send_header := >
send_response := >
server :=
server_version := BaseHTTP/0.3
setup := >
sys_version := Python/2.7.10
timeout := None
version_string := >
wbufsize := 0
weekdayname := [‘Mon‘, ‘Tue‘, ‘Wed‘, ‘Thu‘, ‘Fri‘, ‘Sat‘, ‘Sun‘]
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