How to have python 2 and 3 both on windows?

[Barry]

> On 22 Apr 2022, at 18:43, Gisle Vanem <gisle.vanem at gmail.com> wrote:
> 
> Barry wrote:
> 
>> Tip “py.exe -0” will list the state of installed pythons.
> Not here; 'py.exe -0' gives:
>  Requested Python version (0) not installed
> 
> Which PyInstaller version support this '-0' option?

I do not when it was first added all the installs I have done in the last few years have it working.

Barry

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