for i in xrange(6):print i ** 2
colors = ['red', 'green', 'blue', 'yellow']for color in colors:print color
for color in reversed(colors):print color
for i, color in enumerate(colors):print i, '-->', color
names = ['raymond', 'rachel', 'mattthew']colors = ['red', 'green', 'blue', 'yellow']for name, color in izip(names, colors):print name, '-->', color
colors = ['red', 'green', 'blue', 'yellow']for color in sorted(colors):print colorfor color in sorted(coloes, reverse = True):print color
colors = ['red', 'green', 'blue', 'yellow']print sorted(colors, key=len)
print sum(i ** 2 for i in xrange(10))
def find(seq, target):for i, value in enumerate(seq):if value == target:breakelse:return -1return i
with open('help.txt', 'w') as f:with redirect_stdout(f):help(pow)
with open('data.txt') as f:data = f.read()
lock = threading.Lock()with lock:print 'critical section 1'print 'critical section 2'
colors = ['red', 'green', 'red', 'blue', 'green', 'red']d = {}for color in colors:d[color] = d.get(color, 0) + 1d = defaultdict(int)for color in colors:d[color] += 1