Unset GTDBTK_DATA_PATH prevents even most basic operation

[sjaenick]

Hi there,

I just upgraded my installation to 2.2.5 via pip; unfortunately even most basic commands don't work anymore:

$ gtdbtk --version

================================================================================
                                     ERROR                                      
________________________________________________________________________________

          The 'GTDBTK_DATA_PATH' environment variable is not defined.           

            Please set this variable to your reference data package.            
               https://github.com/Ecogenomics/GTDBTk#installation               
================================================================================

$ gtdbtk --help

================================================================================
                                     ERROR                                      
________________________________________________________________________________

          The 'GTDBTK_DATA_PATH' environment variable is not defined.           

            Please set this variable to your reference data package.            
               https://github.com/Ecogenomics/GTDBTk#installation               
================================================================================

$ gtdbtk check_install

================================================================================
                                     ERROR                                      
________________________________________________________________________________

          The 'GTDBTK_DATA_PATH' environment variable is not defined.           

            Please set this variable to your reference data package.            
               https://github.com/Ecogenomics/GTDBTk#installation               
================================================================================

https://github.com/Ecogenomics/GTDBTk#installation doesn't exist (as an HTML anchor), and the
documentation at https://ecogenomics.github.io/GTDBTk/ has nothing on setting up GTDBTK_DATA_PATH.

I guess basic things like --version and --help (at least) should work without this environment variable.

[pchaumeil]

Please try to set the GTDBTK_DATA_PATH as documented here.

I will change the https://github.com/Ecogenomics/GTDBTk#installation URL to https://ecogenomics.github.io/GTDBTk/installing/index.html instead.

[sjaenick]

I'll do that, but nonetheless, I'd expect basic things (--version, --help) to work anyways.