problem with installing most recent version of quspin with anaconda on linux

In older versions of anaconda on linux, the most recent version of quspin may not be recognized. This affects installing quspin on clusters.

For instance typing conda install -c weinbe58 quspin gets stuck at version quspin-0.2.6, and does not detect more recent versions.

Apparently, conda changed the way to install some packages. For instance if u wanna install the most recent version of scipy, u have to do

conda install -c anaconda scipy 

If u only do conda install scipy u’ll get an older version.

This affects installing quspin (Phil, u can try out updating some local version on BU’s SCC to see the bug). When I specifically request to install a more recent quspin version

conda install -c weinbe58 quspin=0.2.9

I get the following errors:

(quspin) [mbukov@scc1 ~]$ conda install -c weinbe58 quspin=0.2.9
Fetching package metadata ...........
Solving package specifications: 

PackageNotFoundError: Packages missing in current channels:

  - quspin 0.2.9* -> libgcc-ng
  - quspin 0.2.9* -> libstdcxx-ng

We have searched for the packages in the following channels:

  - https://conda.anaconda.org/weinbe58/linux-64
  - https://conda.anaconda.org/weinbe58/noarch
  - https://repo.continuum.io/pkgs/free/linux-64
  - https://repo.continuum.io/pkgs/free/noarch
  - https://repo.continuum.io/pkgs/r/linux-64
  - https://repo.continuum.io/pkgs/r/noarch
  - https://repo.continuum.io/pkgs/pro/linux-64
  - https://repo.continuum.io/pkgs/pro/noarch

Now, if u open up https://conda.anaconda.org/weinbe58/linux-64, u’ll see version 0.2.9 clearly listed. The important error is the PackageNotFoundError. If I now do

conda install -c anaconda libgcc-ng libstdcxx-ng

and then do

conda install -c weinbe58 quspin

then I get the most recent version (at this time quspin-0.2.9); no need to specify the version.

What’s likely going on is in the setup file, when u define quspin’s dependencies in the setup file, u have to use the -c anaconda flag.

[mgbukov]

HI,

I wonder if this is some new issue due to your conda using py37.

Could u create a python 3.6 environment https://conda.io/docs/user-guide/tasks/manage-python.html, activate the py36 environment, and try to install quspin in there?

On Sun, Nov 4, 2018 at 3:47 PM Chapa1 [e-mail] wrote:

i execute

conda install -c weinbe58 quspin in anaconda promt it is a long list of packages to install appeared I entered “y”. After that I got: Executing transaction: failed ERROR conda.core.link:_execute(502): An error occurred while uninstalling package ‘defaults::conda-4.5.11-py37_0’. PermissionError(13… What am i doing wrong? I also tried to install quspin using PyCharm terminal: pip install git+https://github.com/weinbe58/QuSpin.git and I got an error as well.

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– Marin Bukov, PhD Gordon and Betty Moore postdoctoral fellow, Dept. of Physics University of California, Berkeley 366 LeConte Hall MC 7300, Berkeley, CA 94720-7300

url: https://mgbukov.github.io/

[mgbukov]

It should be fixed on any version above anaconda 5 by default.

I prefer to keep the issue open though, in case someone tries to install on a computing cluster with an older conda version (happed to me 😄).