VCLTests.test_create_node fails after 2038

Related to https://en.wikipedia.org/wiki/Year_2038_problem

with the context of https://github.com/apache/libcloud/pull/1279

building openSUSE Tumbleweed's python-apache-libcloud package in the year 2039 on x86_64 resulted in this test failure:

__________________________ VCLTests.test_create_node __________________

self = <libcloud.test.compute.test_vcl.VCLTests testMethod=test_create>

def test_create_node(self):
?? image = self.driver.list_images()[0]??
> node = self.driver.create_node(image=image)

libcloud/test/compute/test_vcl.py:54:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
libcloud/compute/drivers/vcl.py:132: in create_node
?? length??
libcloud/compute/drivers/vcl.py:102: in _vcl_request
?? *args??
libcloud/common/xmlrpc.py:106: in request
?? data = xmlrpclib.dumps(args, methodname=method_name, allow_none=Tr)??
/usr/lib64/python2.7/xmlrpclib.py:1094: in dumps
?? data = m.dumps(params)??
/usr/lib64/python2.7/xmlrpclib.py:638: in dumps
?? dump(v, write)??
/usr/lib64/python2.7/xmlrpclib.py:660: in __dump
?? f(self, value, write)??
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <xmlrpclib.Marshaller instance at 0x7f37112cafc8>, value = 21820
write = <built-in method append of list object at 0x7f37112ca998>

def dump_int(self, value, write):
?? # in case ints are > 32 bits??
?? if value > MAXINT or value < MININT:??
> raise OverflowError, "int exceeds XML-RPC limits"
E OverflowError: int exceeds XML-RPC limits

/usr/lib64/python2.7/xmlrpclib.py:671: OverflowError