Hello Laurent
This is due to the fact that your modules share same apps or others root
name.
If you enable the new conflict_unload option you may simply module loaded
the target module.
Cheers,
Xavier
Le mar. 18 nov. 2025, 10:16, Laurent BESSON <lau...@ea...> a
écrit :
> Hello dear Modules community,
>
>
>
> Naively, I thought « module switch » would be a nice , more compact, way
> of writing « module unload / module load ». But either I stumbled on a bug
> or Modules does not work as I expected 😊
>
>
>
> Here is the context. I was previously sourcing this script :
>
>
>
> module unload others/texlive
>
> module load others/texlive
>
>
>
> module unload apps/python
>
> module load apps/python/3.9.6
>
>
>
> module unload apps/fltExport
>
> module load apps/fltExport/v2.017
>
>
>
> module unload others/nodejs
>
> module load others/nodejs/16.17 .1
>
>
>
> So I thought it would be nice, more readable, to write it this way :
>
>
>
> module switch others/texlive/2022
>
> module switch apps/python/3.9.6
>
> module switch apps/fltExport/v2.017
>
> module switch others/nodejs/16.17.1
>
>
>
> But, when starting from a fresh terminal where no tool has been set, It
> ends up with these 2 modules only:
>
>
>
> … 1) apps/fltExport/v2.017 2) others/nodejs/16.17.1
>
>
>
> I was expecting to have loaded also « others/texlive » and
> « apps/python/3.9.6 ».
>
>
>
> So I read the documentation with more attention on the « switch » command.
> It says :
>
>
>
> Switch loaded *modulefile1* with *modulefile2*. If *modulefile1* is not
> specified, then it is assumed to be the currently loaded module with *the
> same root name* as *modulefile2*.
>
>
>
> So it seems that when I run « module switch apps/fltExport/v2.017 », it
> unload the first module that match the « root name »and it unloads« apps »
> thus unload « apps/python/3.9.6 »
>
>
>
> Do I understand it correctly ? Is it the expected behavior ?
>
> In fact, I thought Modules would try to unload « apps/fltExport/<any
> version> » when running « module switch apps/fltExport/v2.017 ».
>
>
>
> What do you think ?
>
>
>
> Best regards,
>
> Laurent.
>
>
>
> PS : I found an intermediate syntax that works :
>
>
>
> module switch others/texlive others/texlive/2022
>
> module switch apps/python apps/python/3.9.6
>
> module switch apps/fltExport apps/fltExport/v2.017
>
> module switch others/nodejs others/nodejs/16.17.1
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