library(reticulate)
py_install("pandas") #install python package
os <- import("os")
os$listdir(".")[1:10]
##  [1] ".RData"                      ".RDataTmp2"                 
##  [3] ".Rhistory"                   "2020_WFH"                   
##  [5] "2021"                        "2021-11-23-cal_ic50_all.csv"
##  [7] "20211227_data.csv"           "2022"                       
##  [9] "7MC3uH6l6.txt"               "abf1611_qiao_sm.pdf"
os$listdir
## <built-in function listdir>
repl_python()
## Python 3.6.10 (C:/Users/liyix/AppData/Local/r-miniconda/envs/r-reticulate/python.exe)
## Reticulate 1.22 REPL -- A Python interpreter in R.
## Enter 'exit' or 'quit' to exit the REPL and return to R.
## exit
#https://rstudio.github.io/reticulate/