[Python-Dev] Test failures when running as root

[Terry Reedy]

On 1/13/2014 10:16 PM, MRAB wrote:
> On 2014-01-14 03:03, Terry Reedy wrote:
>> On 1/13/2014 7:48 PM, Chris Angelico wrote:
>>> And now for something completely different.
>>>
>>> My root buildbot is finally now able to telnet out and get "Connection
>>> refused" errors. (For the curious, the VirtualBox "NAT" mode doesn't
>>> work properly, but the new "NAT Network" mode does. Why? I have no
>>> idea. But if anyone else is having the same problem, upgrade to the
>>> latest VirtualBox and set up a NAT Network. All I care is, it now
>>> works.) The test suite is now failing at another point, and this
>>> applies to 2.7, 3.3, and 3.x.
>>>
>>> ======================================================================
>>> ERROR: test_initgroups (test.test_posix.PosixGroupsTester)
>>> ----------------------------------------------------------------------
>>> Traceback (most recent call last):
>>>    File
>>> "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/test_posix.py",
>>>
>>> line 1143, in test_initgroups
>>>      g = max(self.saved_groups) + 1
>>> ValueError: max() arg is an empty sequence
>>
>> try:
>>     g = max(self.saved_groups) + 1
>> except ValueError:
>>     g = 1
>>
> Alternatively:
>
> g = max(self.saved_groups, [1])

This would be [1] instead of 1.

>
> or even:
>
> g = max(self.saved_groups or [1])

This is 1.

-- 
Terry Jan Reedy