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### Running command:
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###   chmod a+r infercnv -R && F:\biocbuild\bbs-3.20-bioc\R\bin\R.exe CMD build --keep-empty-dirs --no-resave-data infercnv
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* checking for file 'infercnv/DESCRIPTION' ... OK
* preparing 'infercnv':
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
      -----------------------------------
* installing *source* package 'infercnv' ...
** using staged installation
** R
** data
*** moving datasets to lazyload DB
** inst
** byte-compile and prepare package for lazy loading
Error in findpython::find_python_cmd(required_modules = required_modules) : 
  Couldn't find a sufficient Python binary. If you haven't installed the Python dependency yet please do so. If you have but it isn't on the system path (as is default on Windows) please add it to path or set options('python_cmd'='/path/to/binary')  or set the PYTHON, PYTHON2, or PYTHON3 environmental variables.   Python must have access to the modules: argparse, json | simplejson
Error: unable to load R code in package 'infercnv'
Execution halted
ERROR: lazy loading failed for package 'infercnv'
* removing 'F:/biocbuild/bbs-3.20-bioc/tmpdir/RtmpaSDOJs/Rinst2050c70d83b76/infercnv'
      -----------------------------------
ERROR: package installation failed