* installing *source* package ‘hicream’ ...
** this is package ‘hicream’ version ‘0.0.1’
** using staged installation
** R
** data
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
Using virtual environment 'hicreamvenv' ...
Warning in system2(python, c("-c", shQuote(command)), stdout = TRUE, stderr = TRUE) :
  running command ''/tmp/check-CRAN-incoming-hornik/.virtualenvs/hicreamvenv/bin/python' -c 'import sys; import pip; sys.stdout.write(pip.__version__)' 2>&1' had status 1
Error: package or namespace load failed for ‘hicream’:
 .onLoad failed in loadNamespace() for 'hicream', details:
  call: if (idx != -1) version <- substring(version, 1, idx - 1)
  error: the condition has length > 1
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/srv/hornik/tmp/CRAN_pretest/hicream.Rcheck/hicream’