#! /usr/bin/env python
from stat import *
# Calculate the average of a series of numbers.
SCORE="0"
# Calculate the average of a series of numbers.
SCORE="0"
AVERAGE="0"
AVERAGE="0"
SUM="0"
SUM="0"
NUM="0"
NUM="0"
while true; do

  echo -n "Enter your score [0-100%] ('q' for quit): "; read SCORE;

  if (("$SCORE" < "0"))  || (("$SCORE" > "100")); then
    echo "Be serious.  Common, try again: "
  elif [ "$SCORE" == "q" ]; then
    echo "Average rating: $AVERAGE%."
    break
  else
    SUM=$[$SUM + $SCORE]
    NUM=$[$NUM + 1]
    AVERAGE=$[$SUM / $NUM]
  fi

done
while (True):
    print("Enter your score [0-100%] ('q' for quit): ")
    SCORE = raw_input()
    if ("$SCORE" < "0" or "$SCORE" > "100" ):
        print("Be serious.  Common, try again: ")
    elif (SCORE == "q"  ):
        print("Average rating: "+str(AVERAGE)+"%.")
        break
    else:
        SUM=str([$SUM + $SCORE])
        NUM=str([$NUM + 1])
        AVERAGE=str([$SUM / $NUM])
echo "Exiting."
print("Exiting.")
ÿ