Issue2310

Observed in 2.7rc2 on Windows 7 64-bit.

> jython -m test.test_import
Traceback (most recent call last):
  File "C:\jython\2.7rc2\Lib\runpy.py", line 161, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\jython\2.7rc2\Lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "C:\jython\2.7rc2\Lib\test\test_import.py", line 606, in <module>
    class TestSymbolicallyLinkedPackage(unittest.TestCase):
  File "C:\jython\2.7rc2\Lib\test\test_import.py", line 635, in TestSymbolicallyLinkedPackage
    @unittest.skipUnless(
  File "C:\jython\2.7rc2\Lib\test\symlink_support.py", line 25, in skip_unless_symlink
    ok = can_symlink()
  File "C:\jython\2.7rc2\Lib\test\symlink_support.py", line 14, in can_symlink
    symlink(TESTFN, symlink_path)
  File "C:\jython\2.7rc2\Lib\test\symlink_support.py", line 14, in can_symlink
    symlink(TESTFN, symlink_path)
TypeError: 'NoneType' object is not callable

It looks like this test never got started. I wonder at the ref to symlinks on Windows. Similar idea exists, but CPython os.symlink is available on Unix only. I suspect a use of os.name again. (Does setting that to 'java' really break less code than setting it to 'nt' etc.?)

Unfortunately a bit late in the game for os.name vs os._name! ;)

So this capabilities testing is buggy, since symlink can be set to None in 

symlink = os.symlink if hasattr(os, 'symlink') else (
    _symlink_win32 if platform.system() == 'Windows' else None
)

which seems quite reasonable, but the can_symlink does not properly account for that possibility. I would suggest fixing the problem in the can_symlink function.

I was working on something else, but I found that I'd fixed this.

That's eager! I'll push this change at the same times as other import-related fixes.

https://hg.python.org/jython/rev/85f7eda810b2