So, Eliot’s response didn’t work for me. But Giacomo’s did which is to just
delete the build folder and start afresh (a bit inconvenient if I only had
incremental changes over my previous build).
Before I got the responses, I tried hardcoding the python version (received by
doing python –version in my terminal) into the SConstruct file, and
that….worked. I’m not sure if that is the right way to go about this though.
Regards,
Anurag
From: Giacomo Travaglini <giacomo.travagl...@arm.com>
Date: Wednesday, March 15, 2023 at 9:28 AM
To: The gem5 Users mailing list <gem5-users@gem5.org>
Cc: Kar, Anurag Arunkumar <aka...@gatech.edu>
Subject: Re: [gem5-users] Error: Can't find a working Python installation redux
Hi Anurag
On 15/03/2023 12:57, Kar, Anurag Arunkumar via gem5-users wrote:
Hi,
I tried following previous archived threads which said the solution to this
problem was to provide the path to PYTHON_CONFIG and not using a conda
environment.
I am not using a conda environment and am providing the path in the scons
command:
scons ./build/ARM_MESI_Three_Level/gem5.opt PYTHON_CONFIG=/usr/bin/python-config
scons: Reading SConscript files ...
Mkdir("/data/anurag/gem5-public/build/ARM_MESI_Three_Level/gem5.build")
Checking for linker -Wl,--as-needed support... (cached) yes
Checking for compiler -Wno-free-nonheap-object support... (cached) yes
Checking for compiler -gz support... (cached) yes
Checking for linker -gz support... (cached) yes
Info: Using Python config: python3-config
Checking for C header file Python.h... (cached) yes
Checking Python version... no
Error: Can't find a working Python installation
It seems like SCons is able to find the Python.h header file but it is not able
to gather the python version of the interpreter for whatever reason (check
CheckPythonLib). When I have these sporadic errors I usually remove the build
folder and start a clean build. If the error is still present, you might want
to debug CheckPythonLib with pdb.
If you don't want to do any debugging, you should consider using docker [1]
[1]: https://www.gem5.org/documentation/general_docs/building
Hope it helps
Giacomo
I have been able to build gem5 on this very machine before, I’m not sure what
changed between then and now. Can someone help me debug this?
Regards,
Anurag
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