2.6, 2.7 and 3.3

from pytoxml import PyToXml

person_details = {
    "name": "Bob",
    "occupation": "Builder",
    "arrests": [
        "Assault / Battery",
        "Indecent Exposure"
    ]
}

p2x = PyToXml("doc", person_details)
print p2x.encode()

Yields:

<doc>
  <arrests>
    <item>Assault / Battery</item>
    <item>Indecent Exposure</item>
  </arrests>
  <name>Bob</name>
  <occupation>Builder</occupation>
</doc>

pytoxml gives you a simple way of converting a python structure to XML.

Run the test suite with py.test (pip install pytest) from the root of the project.

By default pytoxml will use the element name item which is probably not what you want. Here's a simple example of how you might use a map to determine the best phrase for a list element:

class BetterListsDemo(PyToXml):
    pluralisation_map = {
        "arrests": "arrest"
    }

    def pluralisation(self, plural):
        return self.pluralisation_map.get(plural, "item")

p2x = BetterListsDemo("doc", person_details)
print p2x.encode()

Which gives:

<doc>
  <arrests>
    <arrest>Assault / Battery</arrest>
    <arrest>Indecent Exposure</arrest>
  </arrests>
  <name>Bob</name>
  <occupation>Builder</occupation>
</doc>

The pluralisation function takes plural as an argument which is the name of the direct parent element to the one you'll be creating.

By default pytoxml will only encode a few types, if you want to encode, for example, exceptions, you might do the following:

def temp_convertor(structure, element, name):
    element.text = str(structure)

p2x = PyToXml("a", { "b": Exception("Should now serialise") })
p2x.add_type_handler(Exception, temp_convertor)
self.assertEqual(str(p2x.encode()), "<a><b>Should now serialise</b></a>")

If you give an object a __pytoxml__ method then you don't need to register a handler:

class MyException(Exception):
    def __pytoxml__(self, structure, element, name):
        element.text = str(self)

    p2x = PyToXml("a", { "b": MyException("Should now serialise") })
    self.assertEqual(str(p2x.encode()), "<a><b>Should now serialise</b></a>")

Though it's somewhat orthogonal to the original justification of PyToXml, you can easily output CDATA elements and attributes:

from pytoxml import PyToXml

cdata = pytoxml.CData("<crappy>xml")
attributes = pytoxml.Attributes("simple text", {"one": "two"})

p2x = pytoxml.PyToXml("root", { "raw": cdata, "attributed": attributes })
p2x.encode()

gives (un-formatted):

<?xml version="1.0"?>
<root>
  <raw><![CDATA[<crappy>xml]]></raw>
  <attributed one="two">simple text</attributed>
</root>

Output the XML declaration. Defaults to False.

p2x = PyToXml("doc", "hello", encoding="latin1", xml_declaration=True)
print p2x.encode()

Yields:

<?xml version='1.0' encoding='latin1'?>
<doc>hello</doc>

p2x = PyToXml("a", { }, root_attributes={"one": "two"} )
p2x.encode()

gives:

<a one="two"/>

Which encoding system should be used to build Defaults to UTF-8.

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