Go is the better structured and long-winded version. Python is the simpler and much more trouble-prone.

go.xml

<Person>
	<Name>Doug</Name>
	<Age>23</Age>
	<YChromosone>true</YChromosone>
</Person>

py.xml

<Person>
  <Name>Doug</Name>
  <Age>23</Age>
  <YChromosone>True</YChromosone>
</Person>

xmlTest.go

package main

import (
	"os"
	"fmt"
	"xml"
)

type Person struct {
	XMLName xml.Name `xml:"Person"`
	Name string
	Age int
	YChromosone bool
}

func main() {
	doug := Person{Name:"Doug", Age:23, YChromosone:true}
	xml.Marshal(os.Stdout, doug)
}

xmlTest.py

from lxml import etree
from lxml.builder import E

xml = E.Person(
	E.Name("Doug"),
	E.Age("23"),
	E.YChromosone("True")
)
print etree.tostring(xml, pretty_print=True)