Make Sphinx doctest insensitive to object address differences

conf.py

# Append this to the `conf.py` file at the root of your Sphinx project
# that is already using the `sphinx.ext.doctest` extension:

import doctest
import re
import sphinx.ext.doctest as ext_doctest

ADDRESS_RE = re.compile(r'\b0x[0-9a-f]{1,16}\b')

class BetterDocTestRunner(ext_doctest.SphinxDocTestRunner):
    def __init__(self, checker=None, verbose=None, optionflags=0):
        checker = BetterOutputChecker()
        doctest.DocTestRunner.__init__(self, checker, verbose, optionflags)

class BetterOutputChecker(doctest.OutputChecker):
    def check_output(self, want, got, optionflags):
        want = ADDRESS_RE.sub('0x7f00ed991e80', want)
        got = ADDRESS_RE.sub('0x7f00ed991e80', got)
        return doctest.OutputChecker.check_output(self, want, got, optionflags)

ext_doctest.SphinxDocTestRunner = BetterDocTestRunner