Ignoring errors when using robjects.

[Rav013]

I am trying to download packages for R script via python.

import rpy2.robjects as robjects

    data = robjects.r('if(!require(rmarkdown)) { install.packages("rmarkdown", repos = "https://cran.revolutionanalytics.com"); require(rmarkdown)}')
    data = robjects.r('if(!require(installr)) { install.packages("installr", repos = "https://cran.revolutionanalytics.com"); require(installr)}')
    data = robjects.r('if(!require(DT)) { install.packages("DT", repos = "https://cran.revolutionanalytics.com"); require(DT)}')
    data = robjects.r('if(!require(lubridate)) { install.packages("lubridate", repos = "https://cran.revolutionanalytics.com"); require(lubridate)}')
    data = robjects.r('if(!require(ggplot2)) { install.packages("ggplot2", repos = "https://cran.revolutionanalytics.com"); require(ggplot2)}')
    data = robjects.r('if(!require(crayon)) { install.packages("crayon", repos = "https://cran.revolutionanalytics.com"); require(crayon)}')

Everything works fine and the packages are downloading correctly but for each package I receive errors:

From cffi callback <function _consolewrite_ex at 0x0000000004D57670>:
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\lib\site-packages\rpy2\rinterface_lib\callbacks.py", line 132, in _consolewrite_ex
    s = conversion._cchar_to_str_with_maxlen(buf, n, _CCHAR_ENCODING)
  File "C:\ProgramData\Anaconda3\lib\site-packages\rpy2\rinterface_lib\conversion.py", line 133, in _cchar_to_str_with_maxlen
    s = ffi.string(c, maxlen).decode(encoding)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa3 in position 0: invalid start byte
From cffi callback <function _consolewrite_ex at 0x0000000004D57670>:
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\lib\site-packages\rpy2\rinterface_lib\callbacks.py", line 132, in _consolewrite_ex
    s = conversion._cchar_to_str_with_maxlen(buf, n, _CCHAR_ENCODING)

My question is, how can I force python to ignore those errors and not show them?