py4inf_ch5

# ex. 5_1
# Write a program which repeatedly reads numbers until the user enters “done”.
# Once “done” is entered, print out the total, count, and average of the numbers.
# If the user enters anything other than a number, detect their mistake using try and except and print an error message and skip to the next number.


x=raw_input('Please input number\n')
while x!='done':
    if x.isdigit()==False:
        x=raw_input('Please give me a real number\n')
    else: x=raw_input('Please input another number \n')
print 'You\'re done'


# ex. 5_2
# Write another program that prompts for a list of numbers as above and at the end prints out both the maximum and minimum of the numbers instead of the average.



values = [1, 3, 5, 7, 9, 11]

def min_val(values):
    smallest=None
    for value in values:
        if smallest is None or value<smallest:
            smallest=value
    return smallest


def max_val(values):
    biggest=None
    for value in values:
        if biggest is None or values>biggest:
            biggest=value
    return biggest

def return_m_M (values):
    x=min_val(values)
    y=max_val(values)
    print x, y


return_m_M(values)