makexml.py

python web programming 部分

#!/usr/bin/python
# Python program that outputs XML

recipe = {
    'title' : 'Famous Guacamole',
    'description' : 'A southwest favorite!',
    'ingredients' : [ ('4',None,'Large avocados, chopped'),
                      ('1',None,'Tomato, chopped'),
                      ('1/2', 'C', 'White onion, chopped'),
                      ('2','tbl','Fresh squeezed lemon juice'),
                      ('1',None,'Jalapeno pepper, diced'),
                      ('1','tbl','Fresh cilantro, minced'),
                      ('1','tbl','Garlic, minced'),
                      ('3','tsp','Salt'),
                      ('12','bottles','Ice-cold beer')
                    ],
    'directions'  : 'Combine all ingredients and hand whisk to desired '
                    'consistency. Serve and enjoy with ice-cold beers'
   }

# Turn a recipe into XML
def make_xml(r):
    def make_item(num,units,desc):
        if units:
            return '<item num="%s" units="%s">%s</item>\n' % (num,units,desc)
        else:
            return '<item num="%s">%s</item>\n' % (num,desc)
    # Make ingredient item list
    ingr_str = "".join([make_item(*i) for i in r["ingredients"]])

    print """<?xml version="1.0" encoding="iso-8859-1"?>
<recipe>
<title>%(title)s</title>
<description>
%(description)s
</description>""" % recipe

    print """
<ingredients>
%s
</ingredients>""" % ingr_str

    print """
<directions>
%(directions)s
</directions>
</recipe>
""" % recipe

# Try it out
make_xml(recipe)