[Scons-users] FW: Scons 2.3.1 on Python 2.4.3 won't build

[Gary Oberbrunner]

Sure enough, chain.from_iterable was added in 2.6.  There's a simple
alternate implementation in the doc at
https://docs.python.org/2/library/itertools.html.

Patches gratefully accepted!


On Wed, Jun 4, 2014 at 12:02 PM, Stijn De Ruyck <Stijn.DeRuyck at onsemi.com>
wrote:

>  This is the stacktrace:
>
>
>
> > ls
>
> hello.c  SConstruct
>
>
>
> > scons --debug=stacktrace
>
> scons: Reading SConscript files ...
>
> scons: done reading SConscript files.
>
>
>
> scons: warning: Support for pre-2.7.0 Python version (2.4.3) is deprecated.
>
>     If this will cause hardship, contact dev at scons.tigris.org.
>
> File "/usr/bin/scons", line 192, in ?
>
> scons: Building targets ...
>
> scons: *** [.] AttributeError : type object 'itertools.chain' has no
> attribute 'from_iterable'
>
> scons: internal stack trace:
>
>   File "/usr/lib/scons-2.3.1/SCons/Job.py", line 199, in start
>
>     task.prepare()
>
>   File "/usr/lib/scons-2.3.1/SCons/Script/Main.py", line 173, in prepare
>
>     return SCons.Taskmaster.OutOfDateTask.prepare(self)
>
>   File "/usr/lib/scons-2.3.1/SCons/Taskmaster.py", line 172, in prepare
>
>     self.exception_raise()
>
>   File "/usr/lib/scons-2.3.1/SCons/Taskmaster.py", line 951, in next_task
>
>     task.make_ready()
>
>   File "/usr/lib/scons-2.3.1/SCons/Script/Main.py", line 307, in make_ready
>
>     SCons.Taskmaster.OutOfDateTask.make_ready(self)
>
>   File "/usr/lib/scons-2.3.1/SCons/Taskmaster.py", line 403, in
> make_ready_current
>
>     is_up_to_date = not t.has_builder() or \
>
>   File "/usr/lib/scons-2.3.1/SCons/Node/FS.py", line 1781, in is_up_to_date
>
>     for kid in self.children():
>
>   File "/usr/lib/scons-2.3.1/SCons/Node/__init__.py", line 1011, in
> children
>
>     return self._children_get()
>
>   File "/usr/lib/scons-2.3.1/SCons/Node/__init__.py", line 977, in
> _children_get
>
>     children = self.all_children(scan=0)
>
>   File "/usr/lib/scons-2.3.1/SCons/Node/__init__.py", line 1004, in
> all_children
>
>     return list(chain.from_iterable(filter(None, [self.sources,
> self.depends, self.implicit])))
>
> scons: building terminated because of errors.
>
>
>
>
>
>
>
>
>
> *From:* Gary Oberbrunner [mailto:garyo at oberbrunner.com]
> *Sent:* Wednesday, June 04, 2014 5:02 PM
> *To:* SCons users mailing list
> *Cc:* Stijn De Ruyck
> *Subject:* Re: [Scons-users] FW: Scons 2.3.1 on Python 2.4.3 won't build
>
>
>
> You may have to use an older SCons; we may have broken 2.4 compatibility
> unknowingly.
>
> Please run with --debug=stacktrace so we can see which line in SCons
> caused the error.
>
> --
> Gary Oberbrunner
> (sent from my Android)
>
> On Jun 4, 2014 8:18 AM, "Stijn De Ruyck" <Stijn.DeRuyck at onsemi.com> wrote:
>
> Resend; msg not received on scons-users?
>
>
>
>
>
> *From:* Stijn De Ruyck
> *Sent:* Wednesday, June 04, 2014 1:59 PM
> *To:* 'scons-users at scons.org'
> *Subject:* Scons 2.3.1 on Python 2.4.3 won't build
>
>
>
> Hi,
>
>
>
> I’m trying to use Scons 2.3.1 on Python 2.4.3.
>
> I just followed the simple c++ hello-world testcase from
> http://www.scons.org/doc/production/HTML/scons-user.html but the build
> fails:
>
>
>
> > scons
>
> scons: Reading SConscript files ...
>
> scons: done reading SConscript files.
>
>
>
> scons: warning: Support for pre-2.7.0 Python version (2.4.3) is deprecated.
>
>     If this will cause hardship, contact dev at scons.tigris.org.
>
> File "/usr/bin/scons", line 192, in ?
>
> scons: Building targets ...
>
> scons: *** [.] AttributeError : type object 'itertools.chain' has no
> attribute 'from_iterable'
>
> scons: building terminated because of errors
>
>
>
> I know support for Python pre-2.7 is now deprecated, but that shouldn’t
> mean “unsupported”, or is it?
>
>
>
> On Python 2.7.6, it works fine, but I can’t upgrade all our workstations
> to this version yet...
>
> > python2.7 `which scons`
>
> scons: Reading SConscript files ...
>
> scons: done reading SConscript files.
>
> scons: Building targets ...
>
> gcc -o hello.o -c hello.c
>
> hello.c: In function 'main':
>
> hello.c:4: warning: incompatible implicit declaration of built-in function
> 'printf'
>
> gcc -o hello hello.o
>
> scons: done building targets.
>
>
>
>
>
>
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>


-- 
Gary
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