On 9/1/19 12:14 am, Sebastian Huber wrote: > What should I use to execute the git command and get the output in > "common/conf.py"? The subprocess command is only available in Python 3.5 and later. Try 'ctx.cmd_and_log()', an example is ... https://git.rtems.org/chrisj/rtems_waf.git/tree/rtems.py?h=libbsd-libdl#n329 This is with waf-2.0.14. Chris