How to handle errors?

[D'Arcy Cain]

On 2016-10-20 08:03 PM, Wildman via Python-list wrote:
> Using a direct path to the Python interpreter can cause problems
> on some systems because it is not always installed to the same
> directory.  On my Debian-based system Python is installed in
> /usr/bin.  So your code as written will not run on my system.
> A workaround for this is to use env in the shebang/hashbang.
>
> For Python 2:  #!/usr/bin/env python

Which would fail on my system because that's Python 3.5.

> For Python 3:  #!/usr/bin/env python3
>
> It will not matter where Python is installed.  'env' will always
> know where it is.

Nothing is perfect.  I have just started linking /usr/bin/python* to 
wherever the actual one is on all my systems.  If I distribute something 
I expect the package manager on the target system to rewrite it as 
necessary.  I use NetBSD pkgsrc (which runs on many systems besides 
NetBSD) and it rewrites the HB line.

-- 
D'Arcy J.M. Cain
System Administrator, Vex.Net
http://www.Vex.Net/ IM:darcy at Vex.Net
VoIP: sip:darcy at Vex.Net