On 04/05/2013 05:41 PM, Tom P wrote:
On 04/05/2013 01:54 PM, Dave Angel wrote:
On 04/05/2013 07:02 AM, Tom P wrote:
First, here's a sample test program:
<code>
import sys
from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
class MyRequestHandler(BaseHTTPRequestHandler, object):
def do_GET(self):
top_self = super(MyRequestHandler, self) # try to access
MyWebServer instance
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
self.wfile.write("thanks for trying, but I'd like to get at
self.foo and self.bar")
return
class MyWebServer(object):
def __init__(self):
self.foo = "foo" # these are what I want to access from inside
do_GET
self.bar = "bar"
self.httpd = HTTPServer(('127.0.0.1', 8000), MyRequestHandler)
sa = self.httpd.socket.getsockname()
print "Serving HTTP on", sa[0], "port", sa[1], "..."
def runIt(self):
self.httpd.serve_forever()
server = MyWebServer()
server.runIt()
</code>
I want to access the foo and bar variables from do_GET, but I can't
figure out how. I suppose this is something to do with new-style vs.
old-style classes, but I lost for a solution.
It'd have been good to tell us that this was on Python 2.7
Is MyWebServer class intended to have exactly one instance? If so, you
could save the instance as a class attribute, and trivially access it
from outside the class.
If it might have more than one instance, then we'd need to know more
about the class BaseHTTPServer.HTTPServer, From a quick glance at the
docs, it looks like you get an attribute called server. So inside the
do_GET() method, you should be able to access self.server.foo and
self.server.bar
See http://docs.python.org/2/library/basehttpserver.html
That doesn't work. Maybe you mean something that I'm missing?
Setting a breakpoint in do_GET:
Pdb) b 7
Breakpoint 1 at
/home/tom/Desktop/tidy/Python/webserver/simpleWebserver.py:7
(Pdb) c
Serving HTTP on 127.0.0.1 port 8000 ...
> /home/tom/Desktop/tidy/Python/webserver/simpleWebserver.py(7)do_GET()
-> self.send_response(200)
(Pdb) self
<__main__.MyRequestHandler instance at 0x7ff20dde3bd8>
(Pdb) self.server
<BaseHTTPServer.HTTPServer instance at 0x7ff20dde3830>
(Pdb) dir(self.server)
['RequestHandlerClass', '_BaseServer__is_shut_down',
'_BaseServer__shutdown_request', '__doc__', '__init__', '__module__',
'_handle_request_noblock', 'address_family', 'allow_reuse_address',
'close_request', 'fileno', 'finish_request', 'get_request',
'handle_error', 'handle_request', 'handle_timeout', 'process_request',
'request_queue_size', 'serve_forever', 'server_activate',
'server_address', 'server_bind', 'server_close', 'server_name',
'server_port', 'shutdown', 'shutdown_request', 'socket', 'socket_type',
'timeout', 'verify_request']
(Pdb) self.server.foo
*** AttributeError: HTTPServer instance has no attribute 'foo'
I did a quick scan of the page whose link I showed you above. It
doesn't say there what 'server' attribute actually is. Sounds like you
need to combine my suggestion with Dylan's. Once your server class
inherits from the HTTPServer class, there should be an attriute 'foo'.
But my understanding is still quite superficial, so you'll have to
continue the good testing you're already doing.
--
DaveA
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