from xml.etree import ElementTree as et
xml = '''\
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Protected_Debug|Win32'">
<RunCodeAnalysis>false</RunCodeAnalysis>
</PropertyGroup>
</Project>
'''
et.register_namespace('', "http://schemas.microsoft.com/developer/msbuild/2003")
tree = et.ElementTree(et.fromstring(xml))
print(tree.find('.//RunCodeAnalysis'))
ZnJvbSB4bWwuZXRyZWUgaW1wb3J0IEVsZW1lbnRUcmVlIGFzIGV0CnhtbCA9ICcnJ1wKPD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz4KPFByb2plY3QgRGVmYXVsdFRhcmdldHM9IkJ1aWxkIiBUb29sc1ZlcnNpb249IjEyLjAiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL2RldmVsb3Blci9tc2J1aWxkLzIwMDMiPgogIDxQcm9wZXJ0eUdyb3VwIENvbmRpdGlvbj0iJyQoQ29uZmlndXJhdGlvbil8JChQbGF0Zm9ybSknPT0nUHJvdGVjdGVkX0RlYnVnfFdpbjMyJyI+CiAgICA8UnVuQ29kZUFuYWx5c2lzPmZhbHNlPC9SdW5Db2RlQW5hbHlzaXM+CiAgPC9Qcm9wZXJ0eUdyb3VwPgo8L1Byb2plY3Q+CicnJwpldC5yZWdpc3Rlcl9uYW1lc3BhY2UoJycsICJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL2RldmVsb3Blci9tc2J1aWxkLzIwMDMiKQp0cmVlID0gZXQuRWxlbWVudFRyZWUoZXQuZnJvbXN0cmluZyh4bWwpKQpwcmludCh0cmVlLmZpbmQoJy4vL1J1bkNvZGVBbmFseXNpcycpKQo=