venture of iit bombay vjti alumni setting path at unix/linux to add the python directory to the path for particular session in unix in the csh shell type setenv path "$path:/usr/local/bin/pythonand press enter in the bash shell (linuxtype export ath="$path:/usr/local/bin/pythonand press enter in the sh or ksh shell type path="$path:/usr/local/bin/pythonand press enter note /usr/local/bin/python is the path of the python directory setting path at windows to add the python directory to the path for particular session in windows at the command prompt type path %path%; :\python and press enter note :\python is the path of the python directory python environment variables here are important environment variableswhich can be recognized by python sr no variable description