import xe

lst_valid_carriers = ["FDXE", "UPS", "USPS"]
class CarrierCode(xe.TextElement):
    def __init__(self, carr_code):
        if carr_code is None:
            carr_code = lst_valid_carriers[0]
        elif carr_code not in lst_valid_carriers:
            s = ", ".join(lst_valid_carriers)
            raise ValueError, "carrier code must be one of: " + s
        xe.TextElement.__init__(self, "CarrierCode", carr_code)

class RequestHeader(xe.NestElement):
    def __init__(self, acct_num, meter_num, carr_code=None, svc=None, pkg=None):
        xe.NestElement.__init__(self, "RequestHeader")

        # AccountNumber must be in range 0..99999
        self.acct_num = xe.IntElement("AccountNumber", acct_num, 0, 99999)
        
        # MeterNumber must be in range 0..9999
        self.meter_num = xe.IntElement("MeterNumber", meter_num, 0, 9999)

        self.carr_code = CarrierCode(carr_code)

        if svc is None:
            svc = "STANDARDOVERNIGHT"
        self.service = xe.TextElement("Service", svc)

        if pkg is None:
            pkg = "FEDEXENVELOPE"
        self.packaging = xe.TextElement("Packaging", pkg)

root = RequestHeader(12345, 6789)

#!/usr/bin/env python
from xmlmodel import *
from datetime import datetime

class rss( XMLModel ):
    class XMLAttrs:
        version = '2.0'
    
    class channel( XMLNode ):
        title = XMLValue('test')
        description = XMLValue('something')
        link = XMLValue('http://here')
        lastBuildDate = XMLDateTime( format = "%a, %d %b %Y %H:%M:%S EST" )
        generator = XMLValue()
        docs = XMLValue()
        
        class item( XMLNodeList ):
            title = XMLValue()
            link = XMLValue()
            description = XMLValue()
            category = XMLList()
            pubDate = XMLDateTime( format = "%a, %d %b %Y %H:%M:%S EST" )

feed = rss()

feed.channel.title = 'Latest Headlines'
feed.channel.description = 'Most Recent Headlines'
feed.channel.generator = 'XMLModel 0.1a'
feed.channel.lastBuildDate = datetime( 2006, 5, 10, 8, 24, 30 )

# the following would theoretically be looped in an function or method somewhere

item = feed.channel.item.new()
item.title = 'foo'
item.link = 'http://foo'
item.description = 'foo bar'
item.category.append( 'foo' )
item.category.append( 'bar' )
item.pubDate = datetime( 2005, 1, 2, 3, 4, 5 )

item = feed.channel.item.new()
item.title = 'bar'
item.link = 'http://bar'
item.description = 'bar baz'
item.category.append( 'bar' )
item.category.append( 'baz' )
item.pubDate = datetime( 2006, 2, 3, 4, 5, 6 )

print feed