ctools

In order to try reproducing the problem on my Mac I installed a new miniconda version under tcsh:

$ tcsh
% ~/Downloads/Miniconda2-latest-MacOSX-x86_64.sh
% conda env list
# conda environments:
#
                         /Users/jurgen/anaconda3
                         /Users/jurgen/anaconda3/envs/astropy
                         /Users/jurgen/anaconda3/envs/ctools-1.6.1
                         /Users/jurgen/anaconda3/envs/ctools-1.7.3
                         /Users/jurgen/anaconda3/envs/ctools-paper
                         /Users/jurgen/anaconda3/envs/rootenv
                         /Users/jurgen/anaconda3/envs/sharepoint
base                  *  /Users/jurgen/miniconda2-tcsh
% conda info

     active environment : None
       user config file : /Users/jurgen/.condarc
 populated config files : /Users/jurgen/.condarc
          conda version : 4.8.3
    conda-build version : not installed
         python version : 2.7.18.final.0
       virtual packages : __osx=10.14.6
       base environment : /Users/jurgen/miniconda2-tcsh  (writable)
           channel URLs : https://conda.anaconda.org/conda-forge/osx-64
                          https://conda.anaconda.org/conda-forge/noarch
                          https://conda.anaconda.org/cta-observatory/osx-64
                          https://conda.anaconda.org/cta-observatory/noarch
                          https://repo.anaconda.com/pkgs/main/osx-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/osx-64
                          https://repo.anaconda.com/pkgs/r/noarch
          package cache : /Users/jurgen/miniconda2-tcsh/pkgs
                          /Users/jurgen/.conda/pkgs
       envs directories : /Users/jurgen/miniconda2-tcsh/envs
                          /Users/jurgen/.conda/envs
               platform : osx-64
             user-agent : conda/4.8.3 requests/2.22.0 CPython/2.7.18 Darwin/18.7.0 OSX/10.14.6
                UID:GID : 501:20
             netrc file : None
           offline mode : False

% conda update -n base -c defaults conda
% conda create -n tcsh python=2.7
% conda activate tcsh
CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.
% conda activate tcsh
modified      /Users/jurgen/.tcshrc
==> For changes to take effect, close and re-open your current shell. <==
% exit
exit
macp0135:~ jurgen$ tcsh
% conda activate tcsh
% conda install gammalib
% conda activate tcsh
% python -c 'import gammalib; gammalib.test()'
% conda install ctools
% python -c 'import ctools; ctools.test()'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/local/gamma/lib/python2.7/site-packages/ctools/tools.py", line 2060, in test
    test_python_ctools.test(installed=True)
  File "/usr/local/gamma/lib/python2.7/site-packages/ctools/tests/test_python_ctools.py", line 102, in test
    os.system('cp -r %s/syspfiles/*.par pfiles/' % (os.environ['CTOOLS']))
  File "/Users/jurgen/miniconda2-tcsh/envs/tcsh/lib/python2.7/UserDict.py", line 40, in __getitem__
    raise KeyError(key)
KeyError: 'CTOOLS'

I added the file 01-ctools-activate.csh to the /Users/jurgen/miniconda2-tcsh/envs/tcsh/etc/conda/activate.d directory:

#!/bin/csh

setenv CTOOLS ${CONDA_PREFIX}
source ${CTOOLS}/bin/ctools-init.csh
unsetenv PYTHONPATH
unsetenv LD_LIBRARY_PATH
unsetenv DYLD_LIBRARY_PATH

% conda activate tcsh
(tcsh) [macp0135:~] jurgen% echo $CTOOLS
/Users/jurgen/miniconda2-tcsh/envs/tcsh
(tcsh) [macp0135:~] jurgen% python -c 'import ctools; ctools.test()'
(tcsh) [macp0135:~] jurgen% python -c 'import cscripts; cscripts.test()'
(tcsh) [macp0135:~] jurgen% python -c 'import gammalib; gammalib.test()'

I added 00-gammalib-activate.csh and 01-gammalib-deactivate.csh to GammaLib’s dev directory and typed in the GammaLib directory the following to build GammaLib locally:

$ /Users/jurgen/anaconda3/bin/conda-build dev/conda.recipe
BUILD START: ['gammalib-1.7.4-py35_1.tar.bz2']
Could not download http://cta.irap.omp.eu/ctools/releases/gammalib/gammalib-1.7.4.tar.gz

Following the bugfix 1.7.4 release that includes conda activation scripts for csh I tested the gammalib installation using conda under tcsh on Mac OS:

% conda create -n tcsh python=2.7
% conda activate tcsh
% conda install gammalib
The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    gammalib-1.7.4             |   py27h59582e6_1        26.7 MB  cta-observatory
    ------------------------------------------------------------
                                           Total:        26.7 MB
% echo $GAMMALIB
GAMMALIB: Undefined variable.
% conda activate tcsh
% echo $GAMMALIB
GAMMALIB: Undefined variable.
% ls /Users/jurgen/miniconda2-tcsh/envs/tcsh/etc/conda/activate.d/
00-gammalib-activate.sh

After adding the csh scripts to the conda distribution I redid the check. Now everything works nicely. It turns out that the re-activation after installation of GammaLib is not needed anymore, conda seems to do the reactivation automatically.

% echo $GAMMALIB
GAMMALIB: Undefined variable.
% conda create -n tcsh python=2.7
% conda activate tcsh
% echo $GAMMALIB
GAMMALIB: Undefined variable.
% conda install gammalib
The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    gammalib-1.7.4             |   py27h59582e6_1        26.7 MB  cta-observatory
    ------------------------------------------------------------
                                           Total:        26.7 MB
% echo $GAMMALIB
/Users/jurgen/miniconda2-tcsh/envs/tcsh
% python -c 'import gammalib; gammalib.test()'

I now did the same thing for ctools, first on tcsh. Everything works as expected.

echo $CTOOLS
CTOOLS: Undefined variable.
% conda create -n tcsh python=2.7
% conda activate tcsh
% echo $CTOOLS
CTOOLS: Undefined variable.
% conda install ctools
The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    ctools-1.7.4               |   py27h97731cd_1         7.5 MB  cta-observatory
    ------------------------------------------------------------
                                           Total:         7.5 MB
% echo $CTOOLS
/Users/jurgen/miniconda2-tcsh/envs/tcsh
% python -c 'import ctools; ctools.test()'
% python -c 'import cscripts; cscripts.test()'
% python -c 'import gammalib; gammalib.test()'
% conda deactivate
% echo $CTOOLS
CTOOLS: Undefined variable.

It also works perfectly for Python 3.5 - 3.8.

I also checked for bash, and also here everything is fine. Close the issue now.