tt secrurities

from math import*
def menu():
    print 
    print "(0) Input a new list"
    print "(1) Print the current list"
    print "(2) Find the average price"
    print "(3) Find the standard deviation"
    print "(4) Find the min and its day"
    print "(5) Find the max and its day"
    print "(5) Find the max and its day"
    print "(6) Your TT investment plan"
    print "(9) Quit"
    print 

def newlist():
    l=raw_input("enter new list")
    l=l.replace('[','')
    l=l.replace(']','')
    l=l.split(',')
    list=[]
    for x in l:
        list.append(float(x));
    return list;

def printList(l):
    print "Day","price"
    print "--- -----"
    for x in range(len(l)):
        print x,"%7.2f" %l[x]
    
def averagePrice(l):
    sum=0.0;
    for x in l:
        sum = sum+x;
    return sum/len(l)

def standardDev(l):
    sum=0.0;
    ave = averagePrice(l);
    for x in l:
        sum=sum+pow((x-ave),2);
    sum=sum/len(l);
    sum=sqrt(sum);
    return sum;

def maxDay(l):
    l=[max(l),l.index(max(l))]
    print l
def minDay(l):
    l=[min(l),l.index(min(l))]
    print l
def TTPlan(l):
    l=[l.index(min(l)),l.index(max(l)),max(l)-min(l)]
    print l
def main():
    l= [10,20,30]
    while True:
        menu();
        uc=int(raw_input("enter your choice:"));
        if uc==9:
            print
            print
            print "See you yesterday!"
            break;
        elif uc==0:
            l=newlist();
        elif uc==1:
            printList(l);
        elif uc==2:
            print averagePrice(l);
        elif uc==3:
            print standardDev(l);
        elif uc==4:
            minDay(l);
        elif uc==5:
            maxDay(l);
        elif uc==6:
            TTPlan(l);
        else :
            print "The choice 7 is not an option."
            print "try again."