[Scons-dev] Python 3 issue

RW garlicbready at googlemail.com
Wed Jun 28 21:11:27 EDT 2017


Okay it looks like the change I've made is impacting a couple of tests

the first one is
src/engine/SCons/ActionTests.py

after calling the following line
```
c = SCons.Action._object_contents(o)
```

the result is compared against a hard coded string
```
AssertionError: Got
b'ccopy_reg\n_reconstructor\nq\x00(c__main__\nTestClass\nq\x01c__builtin__\nobject\nq\x02Ntq\x03Rq\x04}q\x05(X\x01\x00\x00\x00aq\x06h\x06X\x01\x00\x00\x00bq\x07h\x07ub.'
Expected one of
b'ccopy_reg\n_reconstructor\nq\x00(c__main__\nTestClass\nq\x01c__builtin__\nobject\nq\x02Ntq\x03Rq\x04}q\x05(X\x01\x00\x00\x00bq\x06h\x06X\x01\x00\x00\x00aq\x07h\x07ub.'
```
perhaps this hard coded string needs to be changed to match

Next is
test/Parallel/failed-build.py
not sure if this is a thread related fault, since when I run the test
individually it works fine

There's also 4 others I need to look at, which seem to be failing before
any changes on this setup
  src/engine/SCons/Node/FSTests.py
  test/Errors/permission-denied.py
  test/Install/Install.py
  test/VariantDir/errors.py


On 29 June 2017 at 01:38, RW <garlicbready at googlemail.com> wrote:

> It looks like part of the problem was that I wasn't using a virtual
> environment
> there are however still some errors (about 4 this time)
>
> I've captured the stdout / stderr this time around with a command like
> python runtest.py -a -o test_py3_linux_unpatched.log
> >>test_py3_linux_unpatched.out 2>&1
>
> I've attached some updated logs with the stdout / stderr
> I should mention I'm using a VM via VMWare which has the latest Ubutunu
> Mate installed
> I don't think my patch has had an impact on the tests, these seem to be
> failing regardless of the python version or the changes I've made (logs
> seem to be the same)
>
> Many Thanks
> Richard
>
>
> On 28 June 2017 at 20:50, Bill Deegan <bill at baddogconsulting.com> wrote:
>
>> The logs don't include stderr, so can't see failures.
>> Here's the py3 patched linux log failures:
>>
>> Failed the following 7 tests:
>>         src/engine/SCons/ActionTests.py
>>         src/engine/SCons/Node/FSTests.py
>>         test/Docbook/basic/xinclude/xinclude.py
>>         test/Docbook/dependencies/xinclude/xinclude.py
>>         test/Errors/permission-denied.py
>>         test/Install/Install.py
>>         test/VariantDir/errors.py
>>
>>
>> They're all passing on linux in buildbot..
>> http://buildbot.scons.org/#/builders/10/builds/21
>>
>> Can you take a look at those failures?
>>
>> Thanks,
>> Bill
>>
>> On Wed, Jun 28, 2017 at 11:37 AM, RW via Scons-dev <scons-dev at scons.org>
>> wrote:
>>
>>> Hi,
>>> I've attached the test logs from before and after the pull request
>>>
>>> Many Thanks
>>> Richard
>>>
>>> On 27 June 2017 at 23:55, RW <garlicbready at googlemail.com> wrote:
>>>
>>>> Hi,
>>>> I've just submitted a pull request to allow for relative imports under
>>>> python 3 for tools.
>>>> There's also a test included as well.
>>>>
>>>> https://bitbucket.org/scons/scons/pull-requests/486/added-su
>>>> pport-for-relative-imports-within/diff
>>>>
>>>>
>>>> On 26 June 2017 at 09:31, Russel Winder <russel at winder.org.uk> wrote:
>>>>
>>>>> On Fri, 2017-06-23 at 10:53 -0700, Bill Deegan wrote:
>>>>> > This change:
>>>>> > https://bitbucket.org/bdbaddog/scons-russel-example/commits/
>>>>> 48899a710
>>>>> > f9afbec891307addd6ae5b9c08d53c9?at=master
>>>>> >
>>>>> > Will make it work in py2 and py3.
>>>>> >
>>>>> > Any reason we can't live with that?
>>>>>
>>>>> On reflection that probably seems like what I should have written in
>>>>> the first place!
>>>>>
>>>>> Python 3 uses absolute imports with the . and .. exceptions. The
>>>>> absolute_import __future__ makes Python 2 behave the same to give
>>>>> consistency. Of course this only works if the parent package is
>>>>> imported. In this context that will always be the case, so it should be
>>>>> fine.
>>>>>
>>>>> I can definitely live with this as an idiom.
>>>>>
>>>>> I am now just embarrassed to have found this problem. :-)
>>>>>
>>>>> --
>>>>> Russel.
>>>>> ============================================================
>>>>> =================
>>>>> Dr Russel Winder      t: +44 20 7585 2200   voip:
>>>>> sip:russel.winder at ekiga.net
>>>>> 41 Buckmaster Road    m: +44 7770 465 077   xmpp: russel at winder.org.uk
>>>>> London SW11 1EN, UK   w: www.russel.org.uk  skype: russel_winder
>>>>>
>>>>> _______________________________________________
>>>>> Scons-dev mailing list
>>>>> Scons-dev at scons.org
>>>>> https://pairlist2.pair.net/mailman/listinfo/scons-dev
>>>>>
>>>>>
>>>>
>>>
>>> _______________________________________________
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>>>
>>
>
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