✘python shebang, yet again

[Gary E. Miller]

Yo All!

One way to build gpsd for a python that is not the current python
is to use target_python.  So if you default Python is 2.7, and you
want to build for Python 3, do this:

scons config=force target_python=python3

But that leaves the python shebang in the gpsd python clients to be the
PEP 394 default:

    #!/usr/bin/env python

You fix that by using the pyshebang option:

scons config=force target_python=python3 python_shebang="/usr/bin/env python3"

The suggest has been made that is target_python is given, but
python_shebang is not, that the target_python be used to change the
python_shebang default.

So for:

scons config=force target_python=python3

The python shebang would be:

#!/usr/bin/env python3

And for:

scons config=force target_python=/usr/bin/python3

The python shebang would be:

#!/usr/bin/env /usr/bin/python3

Of course the user can over-ride the new defaults with python_shebang.
So to get PEP 394 default behavior back:

scons config=force target_python=python3 python_shebang="/usr/bin/env python"

Comments?  Suggestions?

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        gem@rellim.com  Tel:+1 541 382 8588

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