Python path on windows

[Dave Angel]

On 02/20/2015 09:43 AM, loial wrote:
> On Linux we use
> #!/usr/bin/env python
>
> At the start of scripts to ensure that the python executable used is the one defined in the PATH variable, rather than hardcoding a path to the python executable.
>
> What is the equivalent functionality in Windows?
>

Depends on Python version.  In newer versions, there is a py.exe file 
which they put on their path.  Then in the registry is a two-stage 
association between the .py and .pyw extensions and the above executable.

Finally, when py.exe starts, it reads that first (shebang) line, and 
decides which python interpreter to actually use.

One problem I've heard about is that if someone installs 2.7 on top of 
3.x, it can wipe out the file associations, and mess this stuff up.

The py.exe can be separately installed, to use on older python versions.

This all happened after I cut loose from Windows.

-- 
DaveA