Message10043

_imp.find_module returns, for a Java built-in module, a type of C_BUILTIN (=6), but _imp.load_module is then unable to load it, claiming it does not exist.

>>> import sys, imp
>>> file, filename, descr = imp.find_module("_marshal")
>>> descr
('', '', 6)
>>> imp.load_module("_marshal", file, filename, descr)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named _marshal
>>> import _marshal
>>> sys.modules['_marshal']
<type '_marshal'>

With this and #1906 we could revert to the CPython version of test_importhooks.