Hi Peter Thanks very much for your reply. I have added one more question below.
> The straightforward approach is to pass a list or tuple: > > def build(build_options=()): > subprocess_check_call(("make",) + build_options) > > build(("flagA=true", "flagB=true")) This looks fine - I am trying it. I would like to display on the console the entire make command, so I have done this: def build(build_options=()): make_command = 'make '.join(map(build_options)) print('Build command: ' + make_command) subprocess.check_call(("make",)+build_options) but I get error: make_command = 'make '.join(map(build_options)) TypeError: map() must have at least two arguments. What would be the correct way to concatenate and display the elements in the tuple please? Best regards David -- https://mail.python.org/mailman/listinfo/python-list