LARCH installation issue in UBUNTU 18
Dear All, I wanted to install LARCH on Ubuntu 18. And I could not. I have tried several methods (miniconda, Anaconda, from source and the Linux Binaries and even through pip). For several issues , I found answers in Ifeffit mailing list. This is new. lmfit is not able to import 'ufloat'. Actually "ufloat" belongs to "uncertainties". I could not able to link(port) them properly. I need your help to install Larch. the following is the error message Traceback (most recent call last): File "/usr/local/bin/larch", line 58, in <module> import larch File "/root/.local/lib/python2.7/site-packages/larch/__init__.py", line 25, in <module> from .shell import shell File "/root/.local/lib/python2.7/site-packages/larch/shell.py", line 10, in <module> from .interpreter import Interpreter File "/root/.local/lib/python2.7/site-packages/larch/interpreter.py", line 18, in <module> from . import builtins File "/root/.local/lib/python2.7/site-packages/larch/builtins.py", line 22, in <module> from . import fitting File "/root/.local/lib/python2.7/site-packages/larch/fitting/__init__.py", line 20, in <module> from lmfit import (Parameter, Parameters, Minimizer, conf_interval, ImportError: cannot import name ufloat Mahendra Asst Prof of Physics VIT university -Bharat.
Hi Mahendra,
On Wed, Dec 5, 2018 at 6:28 AM Uma Mahendra Kumar K
Dear All,
I wanted to install LARCH on Ubuntu 18. And I could not.
I have tried several methods (miniconda, Anaconda, from source and the Linux Binaries and even through pip).
For several issues , I found answers in Ifeffit mailing list. This is new.
lmfit is not able to import 'ufloat'.
Actually "ufloat" belongs to "uncertainties". I could not able to link(port) them properly.
I need your help to install Larch.
the following is the error message
Traceback (most recent call last): File "/usr/local/bin/larch", line 58, in <module> import larch File "/root/.local/lib/python2.7/site-packages/larch/__init__.py", line 25, in <module> from .shell import shell File "/root/.local/lib/python2.7/site-packages/larch/shell.py", line 10, in <module> from .interpreter import Interpreter File "/root/.local/lib/python2.7/site-packages/larch/interpreter.py", line 18, in <module> from . import builtins File "/root/.local/lib/python2.7/site-packages/larch/builtins.py", line 22, in <module> from . import fitting File "/root/.local/lib/python2.7/site-packages/larch/fitting/__init__.py", line 20, in <module> from lmfit import (Parameter, Parameters, Minimizer, conf_interval, ImportError: cannot import name ufloat
Oh, very sorry for the trouble. That is totally my fault, and something I realize is not very well tested. Basically, lmfit (which I am at least partly responsible for) had a new release (0.9.12) that breaks larch 0.9.40, in exactly this place. The unreleased, development version of larch does work with the latest version (so all the tests say everything is fine). I'm working on getting 0.9.41 released soon (hopefully next week), but that doesn't solve the problem for you now. The first thing to try is: pip install lmfit==0.9.11 I think that *should* work. If there are still problems, I would forcibly remove .../python2.7/site-packages/lmfit* and then install lmfit version 0.9.11. As an aside, I might recommend using a version of Python that is not installed as root and in the /root/.local. That seems slightly dangerous to me. Hope that helps, --Matt
On 05/12/18 9:54 PM, Matt Newville wrote:
Hi Mahendra,
On Wed, Dec 5, 2018 at 6:28 AM Uma Mahendra Kumar K
Hi Mahendra,
On Sat, Dec 8, 2018 at 10:45 PM Uma Mahendra Kumar K
Dear Dr Matt,
Finally I have fully functional larch on my ubuntu 18.04.
First I installed conda.
Then installed all the larch dependencies listed in the larch web-page via conda.
Later, xraylarch-0.9.40-Linux-x86_64.sh was installed using bash.
As you suggested i have forced lmfit==0.9.11, installation went very well and i got functional larch.
OK, great to hear its working for you. Just to be clear, I do usually recommend installing with the single-package installers like xraylarch-0.9.40-Linux-x86_64.sh. That contains all the dependencies (like, lmfit 0.9.11) and so will work without having to install or update anything else. It installs its own Python environment (in /home/USER/xraylarch on linux) that does not need root permission for installation and will be separate from the system Python, and so can be altered, updated, or even just deleted as needed. Cheers, --Matt Thanks
Mahendra
VIT university-Bharat _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit Unsubscribe: http://millenia.cars.aps.anl.gov/mailman/options/ifeffit
-- --Matt Newville <newville at cars.uchicago.edu> 630-252-0431
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Uma Mahendra Kumar K