"No data sources found" after installation (mac, Anaconda2)

[nelerey]

Expected behavior

installation succesful
$ cate -h returns help.
$ cate ds list returns list of available datasets.

Actual behavior

$ cate -h works as expected
$ cate ds list returns No data sources found.

Steps to reproduce the problem

1. Install Cate in new environment in Anaconda2 by running $ conda install -c ccitools cate / $ conda install -c ccitools cate-cli / using setup.py file after download. (installing gui did not work - see GUI installation fails on mac with Anaconda2 pre-installed #847 )
2. Run $ cate ds list.

Attempts to resolve the problem

1. adjust lists of sources in conf.py after those of cate2.0.0-dev.26 and other versions - no improvement
2. remove anaconda2 and reinstall cate package - no improvement
3. install anaconda3, install cate in new environment cate-env and install cate by $ conda install -c ccitools cate - succes : $ cate ds list now returns list of available datasets.

Specifications

cate 2.0.0
macOS mojave 10.14.3
anaconda2/3 (as described above)

[forman]

Note, Cate requires Python 3.6+, Python 2.x environments are not supported. The Cate installer actually uses Miniconda 3 do install a dedicated Python 3 environment.