test failure in test_close_initiating_remote_no_error[sys.executable]

Hi,

in an attempt to package execnet for openSUSE, our build fails with:

[   18s] =================================== FAILURES ===================================
[   18s] ____________ test_close_initiating_remote_no_error[sys.executable] _____________
[   18s] 
[   18s] testdir = <Testdir local('/tmp/pytest-of-abuild/pytest-3/test_close_initiating_remote_no_error0')>
[   18s] anypython = local('/usr/bin/python2')
[   18s] 
[   18s]     def test_close_initiating_remote_no_error(testdir, anypython):
[   18s]         p = testdir.makepyfile("""
[   18s]             import sys
[   18s]             sys.path.insert(0, sys.argv[1])
[   18s]             import execnet
[   18s]             gw = execnet.makegateway("popen")
[   18s]             print ("remote_exec1")
[   18s]             ch1 = gw.remote_exec("channel.receive()")
[   18s]             print ("remote_exec1")
[   18s]             ch2 = gw.remote_exec("channel.receive()")
[   18s]             print ("termination")
[   18s]             execnet.default_group.terminate()
[   18s]         """)
[   18s]         testdir.makepyfile(apipkg=apipkg)
[   18s]         popen = subprocess.Popen(
[   18s]             [str(anypython), str(p), str(execnetdir)],
[   18s]             stdout=None, stderr=subprocess.PIPE,)
[   18s]         out, err = popen.communicate()
[   18s]         print (err)
[   18s]         err = err.decode('utf8')
[   18s]         lines = [
[   18s]             x for x in err.splitlines()
[   18s]             if '*sys-package' not in x]
[   18s]         # print (lines)
[   18s] >       assert not lines
[   18s] E       assert not ['Traceback (most recent call last):', '  File "/tmp/pytest-of-abuild/pytest-3/test_close_initiating_remote_no_error0/... '  File "/tmp/pytest-of-abuild/pytest-3/test_close_initiating_remote_no_error0/apipkg.py", line 12, in <module>', ...]

Full build log here:
https://build.opensuse.org/package/live_build_log/devel:languages:python/python-execnet/openSUSE_Tumbleweed/x86_64

It looks like some unexpected interaction with apipkg and python 2.7.
Shouldn't this test being excluded for 2.7 then, or do you have other ideas, what's going wrong?

Our build facility attempts to build the package for 2.7 and 3.* by default, depending on the build target.

Beginne mit test_close_initiating_remote_no_error[sys.executable] und reproduziere den openSUSE-Fehler unter Python 2.7 mit apipkg. Lies den vollständigen Traceback, um die Inkompatibilität zu identifizieren; abgeschlossen ist die Aufgabe, wenn der Test unter unterstützten Python-Versionen besteht oder die Behandlung von Python 2.7 ausdrücklich gelöst und durch die Testsuite abgedeckt ist.