How to manage python shebang on mixed systems?

[Mike Dewhirst]

On 7/11/2022 6:51 am, jak wrote:
> Il 06/11/2022 11:03, Chris Green ha scritto:
>> I have a number of python scripts that I run on a mix of systems.  I
>> have updated them all to run on python 3 but many will also run quite
>> happily with python 2.  They all have a #!/usr/bin/python3 shebang.
>>
>> This works almost everywhere but there is one system where only
>> python 2 is available (at /usr/bin/python).
>>
>> I don't have python 2 on any of the systems I manage myself now so a
>> #!/usr/bin/python shebang will fail.
>>
>> Is there a neat way of handling this?  I could write a sort of wrapper
>> script to run via the shebang but that seems overkill to me.
>>

Can you link the interpreter on each system to the same-named local link 
and put that in your shebang?

#!~/scripts/mypython

>
> hi,
> If you can call Python from the shell prompt, then you could remove the
> path from shebang:
>
> #!python
>


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