* installing to library ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages’
* installing *source* package ‘leiden’ ...
** this is package ‘leiden’ version ‘0.4.3.1’
** package ‘leiden’ successfully unpacked and MD5 sums checked
** using staged installation
** R
** 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
Warning in normalizePath(python_home) :
  path[1]="/tmp/check-CRAN-regular-hornik/cache/R/reticulate/uv/cache/builds-v0/.tmpoypCh0/bin": No such file or directory
Error in python_config_impl(python) : 
  Error running '/tmp/check-CRAN-regular-hornik/cache/R/reticulate/uv/cache/builds-v0/.tmpoypCh0/bin/python': No such file.
Warning in normalizePath(python_home) :
  path[1]="/tmp/check-CRAN-regular-hornik/cache/R/reticulate/uv/cache/builds-v0/.tmpwf3AHU/bin": No such file or directory
Error in python_config_impl(python) : 
  Error running '/tmp/check-CRAN-regular-hornik/cache/R/reticulate/uv/cache/builds-v0/.tmpwf3AHU/bin/python': No such file.
** testing if installed package can be loaded from final location
Warning in normalizePath(python_home) :
  path[1]="/tmp/check-CRAN-regular-hornik/cache/R/reticulate/uv/cache/builds-v0/.tmp8arj7U/bin": No such file or directory
Error in python_config_impl(python) : 
  Error running '/tmp/check-CRAN-regular-hornik/cache/R/reticulate/uv/cache/builds-v0/.tmp8arj7U/bin/python': No such file.
Warning in normalizePath(python_home) :
  path[1]="/tmp/check-CRAN-regular-hornik/cache/R/reticulate/uv/cache/builds-v0/.tmpzWFOy6/bin": No such file or directory
Error in python_config_impl(python) : 
  Error running '/tmp/check-CRAN-regular-hornik/cache/R/reticulate/uv/cache/builds-v0/.tmpzWFOy6/bin/python': No such file.
** testing if installed package keeps a record of temporary installation path
* DONE (leiden)