Python simple web server

Question

I am trying to to print some simple variables using the built in HTTP server in Python

class WebServer:
    def __init__(self):
        from BaseHTTPServer import HTTPServer
        import urlparse
        server = HTTPServer(('', 8080), self.do_GET)
        server.serve_forever()

    def do_GET(self):
        parsed_path = urlparse.urlparse(self.path)
        message_parts = [
                'CLIENT VALUES:',
                'client_address=%s (%s)' % (self.client_address, self.address_string()),
                'command=%s' % self.command,
                'path=%s' % self.path,
                'real path=%s' % parsed_path.path,
                'query=%s' % parsed_path.query,
                'request_version=%s' % self.request_version,
                '',
                'SERVER VALUES:',
                'server_version=%s' % self.server_version,
                'sys_version=%s' % self.sys_version,
                'protocol_version=%s' % self.protocol_version,
                '',
                'HEADERS RECEIVED:',
                ]
        for name, value in sorted(self.headers.items()):
            message_parts.append('%s=%s' % (name, value.rstrip()))
        message_parts.append('')
        message = '\r\n'.join(message_parts)
        self.send_response(200)
        self.end_headers()
        self.wfile.write(message)
        return

But i seem to get this error:

Exception happened during processing of request from ('10.0.1.3', 52251)
Traceback (most recent call last):
  File "/usr/lib/python2.7/SocketServer.py", line 295, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 321, in process_request
    self.finish_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 334, in finish_request
    self.RequestHandlerClass(request, client_address, self)
TypeError: do_GET() takes exactly 1 argument (4 given)
----------------------------------------

def do_GET(self): seems to be receiving more then just self, what am i missing?

Take a look at the documentation for the module you're using :) you're passing in a function when a fully fledged object is expected docs.python.org/2/library/… — salezica
– salezica, Commented Feb 5, 2013 at 18:13
you could sublcass it and implement do_GET like in this example wiki.python.org/moin/BaseHttpServer — dm03514
– dm03514, Commented Feb 5, 2013 at 18:13

imreal · Accepted Answer · 2013-02-05 18:16:09Z

2

Inherit WebServer from a Request Handler like this:

class WebServer(BaseHTTPRequestHandler):

You will probably have to change your imports for that.

Then pass it as an argument to HTTPServer like this:

server = HTTPServer(('', 8080), WebServer)

answered Feb 5, 2013 at 18:16

imreal

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imreal Over a year ago

It works for me if I move server = HTTPServer(('', 8080), WebServer) server.serve_forever() after the definition of WebServer.

salezica · Accepted Answer · 2013-02-05 18:14:59Z

2

You're passing in a function, when a BaseHTTPRequestHandler is expected. In other words, Python is trying to instantiate your object using a BaseHTTPRequestHandler __init__ method, but you've provided a function that takes a different amount of arguments.

Instead of passing a plain function, sublcass BaseHTTPRequestHandler. The example linked by @dm03514 in the comments will get you started.

answered Feb 5, 2013 at 18:14

salezica

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