prob0.py

def main():
	for i in range(1,11):
		print 2*i

if __name__ == '__main__' :
	main()

prob1.py

def main():
    for i in range(5):
        print ' '*(4-i),
        print '*'*(i+1)


if __name__ == '__main__':
    main()

prob2.py

def main():
    a  = input()
    for i in range(a+1):
        print ' ' * (a-i), 
        print '*' * (i+1)

if __name__ == '__main__':
    main()

Prob3.py

import random  
def main():
    balls = range(1,46)
    random.shuffle(balls)
    print sorted(balls[0:6])

if __name__ == '__main__':
    main()

prob3_ver2.py

from random import shuffle 
def main():
    x = [[i] for i in range(45)]
    shuffle(x)
    print x[0:6] 

if __name__ == '__main__':
    main()

prob4.py

def main():
    a = ['Python is a programming language', 'that lets you work quickly', 'and integrate systems more effectively']
    a = ''.join(a)
    print  a.split()

if __name__ == '__main__':
    main()

prob4_modified.py

def main():
    a = ['Python is a programming language', 'that lets you work quickly', 'and integrate systems more effectively']
    a = ''.join(a)
    a =  a.split()
    for i in a:
        print i

if __name__ == '__main__':
    main()

prob4_modified2.py

def main():
    a = ['Python is a programming language', 'that lets you work quickly', 'and integrate systems more effectively']
    for i in ' '.join(a).split(): print i

if __name__ == '__main__':
    main()

prob5_datetime.py

import datetime 
def main():   
    today = datetime.datetime.now()
    a = str(today)[:-7]
    print "[",a,"]"

if __name__ == '__main__':
    main()

prob6_wordcount.py

from collections import Counter

def countWords(a_list):
    words = {}
    for i in range(len(a_list)):
        item = a_list[i]
        count = a_list.count(item)
        words[item] = count
    return sorted(words.items(), key = lambda item: item[1], reverse=True)

def main():
    a = "To find the frequency of these items its easier then you guys are making it. if you have all the words in a list (which is easy to do using the string split function). Then:"
    print countWords(a.split())

if __name__ == "__main__":
    main()

prob6_wordcount_modified.py

def main():
    a = "This question has been asked before and already has an answer. If those answers do not fully address your question, please ..."
    a = a.split()
    for i in a:
        print i, "=", a.count(i)

if __name__ == "__main__" :
    main()