[Scons-users] Scons script stopped working - error: The system cannot find the path specified.

[Zarko Coklin]

Hi all!


Long story short, I work on a project and it uses Scons to build the SW. On my PC I was using it for a long time. It worked just fine. Lately, some change has happened on my PC and now when I run Scons from Python and invoke os.system() it keeps failing. The error reported is somewhat cryptic: 'The system cannot find the path specified' error. Very annoying!


For example, if the Python file invokes:

os.system("scons --version")


The output in DOS is:

The system cannot find the path specified.
SCons by Steven Knight et al.:
script: v2.2.0.issue-2856:2676:d23b7a2f45e8[MODIFIED], 2012/08/05 15:38:28, by garyo on oberbrunner-dev
engine: v2.2.0.issue-2856:2676:d23b7a2f45e8[MODIFIED], 2012/08/05 15:38:28, by garyo on oberbrunner-dev
engine path: ['C:\\Python27\\Scripts\\..\\Lib\\site-packages\\scons-2.2.0\\SCons']
Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 The SCons Foundation


I am using Pyton 2.7.3 and Scons version 2.2.0. Anybody has any idea what path is in question and how to debug the problem? Help is very much appreciated.


Regards,

Zarko

[Bill Deegan]

Zarko,

Do you have any custom SCons tools defined?
Can you try this as follows:

Create a SConstruct with only the following in it
---------------
DefaultEnvironment(tools=[])


Then fun your scons --version in the directory where that file is located.

-Bill


On Tue, May 10, 2016 at 1:07 PM, Zarko Coklin <***@hotmail.com> wrote:

> Hi all!
>
>
> Long story short, I work on a project and it uses Scons to build the SW.
> On my PC I was using it for a long time. It worked just fine. Lately, some
> change has happened on my PC and now when I run Scons from Python and
> invoke os.system() it keeps failing. The error reported is somewhat
> cryptic: 'The system cannot find the path specified' error. Very annoying!
>
>
> For example, if the Python file invokes:
>
> os.system("scons --version")
>
>
> The output in DOS is:
>
> The system cannot find the path specified.
> SCons by Steven Knight et al.:
> script: v2.2.0.issue-2856:2676:d23b7a2f45e8[MODIFIED], 2012/08/05
> 15:38:28, by garyo on oberbrunner-dev
> engine: v2.2.0.issue-2856:2676:d23b7a2f45e8[MODIFIED], 2012/08/05
> 15:38:28, by garyo on oberbrunner-dev
> engine path:
> ['C:\\Python27\\Scripts\\..\\Lib\\site-packages\\scons-2.2.0\\SCons']
> Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
> 2011, 2012 The SCons Foundation
>
> I am using Pyton 2.7.3 and Scons version 2.2.0. Anybody has any idea what
> path is in question and how to debug the problem? Help is very much
> appreciated.
>
>
> Regards,
>
> Zarko
>
>
>
> _______________________________________________
> Scons-users mailing list
> Scons-***@scons.org
> https://pairlist4.pair.net/mailman/listinfo/scons-users
>
>

[Dirk Bächle]

Hi Zarko,

this is just a wild guess, but it seems that your PATH variable has changed?

On 10.05.2016 22:07, Zarko Coklin wrote:
> Hi all!
>
>
> Long story short, I work on a project and it uses Scons to build the SW. On my PC I was using it for a long time. It worked just
> fine. Lately, some change has happened on my PC and now when I run Scons from Python and invoke os.system() it keeps failing. The
> error reported is somewhat cryptic: 'The system cannot find the path specified' error. Very annoying!
>
> For example, if the Python file invokes:
>
> os.system("scons --version")
>
> The output in DOS is:
>

What is the output of calling "scons" (should probably be "scons.bat") in a CMD window directly (not from within the Python
interpreter)?

Best regards,

Dirk

[Žarko Coklin]

Hm, I should correct myself a bit. I created a python script which goes like this:

from optparse import OptionParser
import os, sys
print ("Hello")
os.system("dir")


And the problem seems to be Python related cause the output goes like this:
C:\Code\Code_7.31>python zarko.py
Hello
The system cannot find the path specified.
Volume in drive C is OS
Volume Serial Number is 4C17-8448
Directory of C:\Code\Code_7.31
10/05/2016 04:39 PM <DIR> .
10/05/2016 04:39 PM <DIR> ..
18/02/2016 12:32 PM 2,097,952 $TEMP$.TMP
09/05/2016 12:48 PM 7,908 .cproject
17/07/2013 09:49 AM 787 .project
....

So the problem may be more Python than Scons related.

Zarko

[Žarko Coklin]

I was able to resolve my issue. Long story short: had to re-install Windows.


After that things started to work as expected. Wish I did not have to go to such drastic extent [☹] . All is good now. Thanks to all who responded.


Regards,

Zarko