[Scons-users] AttributeError: 'NoneType' object has no attribute 'loader':

[Bill Deegan]

Bassem,

Indeed.. there's no importlib used in
https://github.com/SCons/scons/blob/3.0.1/src/engine/SCons/Script/Main.py

You must've somehow installed the contents of the unmerged pull request..
(which hasn't been merged because of that issue among others).

-Bill

On Wed, Aug 1, 2018 at 5:26 PM, Bassem Girgis <brgirgis at gmail.com> wrote:

> $pip3 uninstall scons
> $pip3 install scons
>
> seems to have solved this issue. Sorry for the false alarm.
>
> On Wed, Aug 1, 2018 at 6:40 PM Bassem Girgis <brgirgis at gmail.com> wrote:
>
>> Here are some details:
>> $ scons --version
>> SCons by Steven Knight et al.:
>>         script: v3.0.1.74b2c53bc42290e911b334a6b44f187da698a668,
>> 2017/11/14 13:16:53, by bdbaddog on hpmicrodog
>>         engine: v3.0.1.74b2c53bc42290e911b334a6b44f187da698a668,
>> 2017/11/14 13:16:53, by bdbaddog on hpmicrodog
>>         engine path: ['/usr/lib/scons-3.0.1/SCons']
>> Copyright (c) 2001 - 2017 The SCons Foundation
>> $ python3 --version
>> Python 3.6.5
>> $ cat /etc/*-release
>> LSB_VERSION="core-2.0-noarch:core-3.2-noarch:core-4.0-
>> noarch:core-2.0-x86_64:core-3.2-x86_64:core-4.0-x86_64"
>> NAME="openSUSE Tumbleweed"
>> # VERSION="20180726"
>> ID="opensuse-tumbleweed"
>> ID_LIKE="opensuse suse"
>> VERSION_ID="20180726"
>> PRETTY_NAME="openSUSE Tumbleweed"
>> ANSI_COLOR="0;32"
>> CPE_NAME="cpe:/o:opensuse:tumbleweed:20180726"
>> BUG_REPORT_URL="https://bugs.opensuse.org"
>> HOME_URL="https://www.opensuse.org/"
>>
>>
>> On Wed, Aug 1, 2018 at 12:00 PM Bill Deegan <bill at baddogconsulting.com>
>> wrote:
>>
>>> Are you using the code in this pull request?
>>> https://github.com/SCons/scons/pull/3159
>>>
>>>
>>> On Wed, Aug 1, 2018 at 7:06 AM, Mats Wichmann <mats at wichmann.us> wrote:
>>>
>>>> On 08/01/2018 01:07 AM, Bassem Girgis wrote:
>>>> > I'm trying to build a project that used to build fine. After doing a
>>>> > routine update for my linux machine, I started getting this error. My
>>>> > site_init.py is empty. I'm hoping this issue is related to something
>>>> new
>>>> > that went into a recent release of scons.
>>>> >
>>>> > $ scons
>>>> > *** Error loading site_init file './site_scons/site_init.py':
>>>> > AttributeError: 'NoneType' object has no attribute 'loader':
>>>> >   File "/usr/lib/scons-3.0.1/SCons/Script/Main.py", line 1396:
>>>> >     _exec_main(parser, values)
>>>> >   File "/usr/lib/scons-3.0.1/SCons/Script/Main.py", line 1359:
>>>> >     _main(parser)
>>>> >   File "/usr/lib/scons-3.0.1/SCons/Script/Main.py", line 990:
>>>> >     _load_all_site_scons_dirs(d.get_internal_path())
>>>> >   File "/usr/lib/scons-3.0.1/SCons/Script/Main.py", line 843:
>>>> >     _load_site_scons_dir(d)
>>>> >   File "/usr/lib/scons-3.0.1/SCons/Script/Main.py", line 781:
>>>> >     mod = importlib.util.module_from_spec(spec)
>>>> >   File "<frozen importlib._bootstrap>", line 568:
>>>>
>>>> What are the details of your setup?  as in distribution, scons pkg
>>>> version, Python version?
>>>>
>>>> I'll leave more responses to those more expert, but I ask the above
>>>> because that traceback doesn't seem to match up with the code in 3.0.1,
>>>> at least not the copy I have, and I wonder if someone has patched scons.
>>>> If the update was very recent and you now have Python 3.7, that could be
>>>> particularly likely because something broke relating to imports, as
>>>> noted here:
>>>>
>>>> https://github.com/SCons/scons/pull/3159
>>>>
>>>>
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>>>>
>>>
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>>
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