[Ifeffit] Larch 0.9.47

[Matt Newville]

Hi Garret,


On Tue, Mar 3, 2020 at 8:01 AM Garret Bland <gbland at andrew.cmu.edu> wrote:

> Hi All,
> I tried to reinstall anaconda (Windows 10) and create a new environment to
> install the newest version of larch. It gave me the following error:
>
> conda install -yc GSECARS xraylarch
> Collecting package metadata (current_repodata.json): done
> Solving environment: failed with initial frozen solve. Retrying with
> flexible solve.
> Solving environment: failed with repodata from current_repodata.json, will
> retry with next repodata source.
> Collecting package metadata (repodata.json): done
> Solving environment: failed with initial frozen solve. Retrying with
> flexible solve.
> Solving environment: -
> Found conflicts! Looking for incompatible packages.
> This can take several minutes.  Press CTRL-C to abort.
> failed
>

Sorry for the trouble.  It seems like updating from a previous release is
not working as well as I hoped.  I'm not sure what that error *really*
means, but I have also seen some Anaconda environments be either very, very
slow to "solve environment" or fail when I'm pretty sure it really should
succeed.

Slightly conda-specific, but: It should definitely be the case that doing
an "conda update --all" or making a completely new environment and
installing into that should work too.  I'm reluctant to expect most users
to have to install / update with conda, but I also think it should work.

>
> I then installed pip on my virtual environment and used pip install
> xraylarch. That seemed to work for me.
>

OK, yes.  For the Python-enabled users, `pip install xraylarch` should work
for most work (including all the XAFS functionality).  It will not install
some optional packages (notably tomopy), but that should be OK unless
you're doing fluorescence tomography.

Just for completeness and to prove that all three systems have their own
challenges, `pip install xraylarch` will work on Windows and MacOS, but
will work on Linux only if wxPython has already somehow been installed.  A
binary package is not available for "Linux" and compiling from source on
Linux is not trivial (these two things are related).

Anyway, I'm glad to hear you've got something working.

--Matt
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://millenia.cars.aps.anl.gov/pipermail/ifeffit/attachments/20200303/df3163a6/attachment.html>