Am 07.10.2025 um 15:51 schrieb Aurélien Couderc via Cygwin:
On Tue, Oct 7, 2025 at 3:47 PM Marco Atzeri via Cygwin
<[email protected]> wrote:
On 07/10/2025 14:17, gamer 191 via Cygwin wrote:
Hi,
I noticed that C:\cygwin64\bin\python3 doesn't work if I invoke it from
command prompt, likely because it doesn't have the .exe extension. It works
if I create a copy named python3.exe.
Kind regards,
gamer191
Hi Gamer
python3 is a Cygwin link managed by alternatives and NOT understood by
command prompt.
$ ls -l python3
lrwxrwxrwx 1 marco Administrators 25 May 21 2023 python3 ->
/etc/alternatives/python3
$ alternatives --display python3
python3 - status is auto.
link currently points to /usr/bin/python3.9
/usr/bin/python3.8 - priority 38
/usr/bin/python3.9 - priority 39
Current `best' version is /usr/bin/python3.9.
From CMD you need to invoke directly the relative python3.9.exe
c:\cygwin64\bin>dir /A /S python3*.*
Volume in drive C is OS
Volume Serial Number is 2232-4AA9
Directory of c:\cygwin64\bin
21/05/2023 20:47 64 python3
21/05/2023 20:48 78 python3-config
10/03/2023 00:34 3,420 python3.8-config
10/03/2023 00:34 9,747 python3.8.exe
08/03/2023 23:52 3,048 python3.9-config
08/03/2023 23:53 9,747 python3.9.exe
8 File(s) 38,879 bytes
Could the setup.exe Cygwin installer PLEASE get a GUI(!!) option to
install packages using native Windows symlinks? That would fix that
recurring problem.
Aurélien
It would also help, and not need such problematic reconfiguration, if ln
-s did set up a symlink as .exe if it points to a .exe, like:
ln -s python3.9 /bin/pythonlink
ls -l /bin/pythonlink*
... /bin/pythonlink.exe -> python3.9.exe
Packages could also ensure this themselves with
ln -s python3.9.exe /bin/pythonlink.exe
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