monkey patch example

gistfile1.txt

 class STIXPackage:
     def to_xml(self, include_namespaces=True, include_schemalocs=False,
               ns_dict=None, schemaloc_dict=None):
         # do things
 
# monkey patch
global __old_to_xml_clobbered_by_stix_edh
__old_to_xml_clobbered_by_stix_edh = stix.core.stix_package.STIXPackage.to_xml
def new_to_xml(self, ns_dict=None, *args, **kwargs):
    if ns_dict is None: ns_dict = {}
    ns_dict.update({ 'urn:edm:edh:cyber:v3': 'edh2' })
    return __old_to_xml_clobbered_by_stix_edh(self, ns_dict=ns_dict, *args, **kwargs)
stix.core.stix_package.STIXPackage.to_xml = new_to_xml