exercises and examples for chapter five

#example 1
"""decrement down to 'blastoff'

n = 5
while n > 0:
    print n
    n = n - 1
print "Blastoff!"

#example 2
infinite loops and breaks

while True:
    line = raw_input('> ')
    if line == 'done':
        break
    print line
print 'Done!'

#example 3
infinite loops and continue

while True:
    line = raw_input('> ')
    if line[0] == "#":
        continue
    if line == 'done':
        break
    print line
print 'Done!'

#example 4
for loops

friends = ['Joseph', 'Glenn', 'Sally']
for friend in friends:
    print 'Happy New Year: ', friend
print 'Done!'
"""

#example 5
#another for loop

count = 0
for itervar in [3, 41, 12, 9, 74, 15]:
    count = count + 1
print 'Count: ', count

#example 6
#an iteration loop that computes total set of numbers

total = 0 
for itervar in [3, 41, 12, 9, 74, 15]:
    total = total + itervar
print 'Total: ', total

#example 7
#find the largest value in a list or sequence

largest = None
print 'Before: ', largest
for itervar in [3, 41, 12, 9, 74, 15]:
    if largest is None or itervar > largest:
        largest = itervar
    print 'Loop: ', itervar, largest
print 'largest: ', largest

#example 8
#find smallest value in a list or sequence

smallest = None
print 'Before: ', smallest
for itervar in [3, 41, 12, 9, 74, 15]:
    if smallest is None or itervar < smallest:
        smallest = itervar
    print 'Loop: ', itervar, smallest
print 'Smallest: ', smallest

#example 9
#using min() and max() functions

def min(values):
    value = float(values)
    smallest = None
    for value in values:
        if smalles is None or value < smallest:
            smallest = value 
    return smallest
print smallest

values = raw_input('Enter values: ')
min(values)

Python Fiddle

Python Cloud IDE