How to detect if a file is executable on Windows?

bryan rasmussen rasmussen.bryan at gmail.com
Tue Feb 19 09:08:45 EST 2019


Well, I used to know the answer to this question but I haven't done this
kind of thing since 2009, so hopefully what I suggest is not out of date,
so for everything I say here assume I put provisos in like it used to be or
whatever.

Anyway if the type of a file is executable , for example a file with
extension .xyz, is determined by the registry in windows
read here and google onward
https://docs.microsoft.com/en-us/windows/desktop/shell/app-registration#finding-an-application-executable

As I recall somewhere in PyWin32
http://timgolden.me.uk/pywin32-docs/contents.html there was a method to
find out if an individual file was an executable.

Hope it helps, because that means I still have some usable knowledge in
that area!

Best Regards,
Bryan Rasmussen



On Tue, Feb 19, 2019 at 2:49 PM Stephane Wirtel <stephane at wirtel.be> wrote:

> And based on a determinist solution?
>
> Yes, you can check the extension but sometimes I prefer to be sure.
>
> For example, the API of Win32 has the GetTypeBinaryW function, this one
> could be used but I need to create a mapping, with CPython api, ctypes
> or CFFI.
>
> I could also use the 2 first bytes of a file and determine if the file
> is a binary because on Windows, the executable files start with b'MZ'.
>
> But I wanted an elegant and minimalist solution.
>
> Thank you for your proposal.
>
> Have a nice day,
>
> Stéphane
>
> On 02/18, Igor Korot wrote:
> >Hi,
> >
> >On Tue, Feb 19, 2019 at 7:26 AM Stephane Wirtel <stephane at wirtel.be>
> wrote:
> >>
> >> Hi all,
> >>
> >> on Linux/Unix/BSD, we can detect if a file is an executable with
> >> os.access(path, os.X_OK) but this is not the case on Windows.
> >>
> >> Do you have an idea?
> >
> >Check file extension?
> >
> >Thank you.
> >
> >>
> >> Have a nice day,
> >>
> >> Stéphane
> >>
> >> --
> >> Stéphane Wirtel - https://wirtel.be - @matrixise
> >> --
> >> https://mail.python.org/mailman/listinfo/python-list
>
> --
> Stéphane Wirtel - https://wirtel.be - @matrixise
> --
> https://mail.python.org/mailman/listinfo/python-list
>


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