# isinstance.py

# isinstance.py

def minmax(mylist, typ):
    """return min/max of mixed list mylist for items of type typ"""
    temp = [x for x in mylist if isinstance(x, typ)]
    return min(temp), max(temp)

# minmax() test ...
mixed_list = [100, 'Dave', 12, 'Mary', 7, 'Zoe', 9, 700, 777, 'Peter', 123456789]
print mixed_list

print "The min and max of the integers are:"
mn, mx = minmax(mixed_list, int)
print "minimum = %s  maximum = %s" % (mn, mx)

print "The min and max of the strings are:"
mn, mx = minmax(mixed_list, str)
print "minimum = %s  maximum = %s" % (mn, mx)