python的一些细节（3）

x = 2
if 3 > x > 1:
   print x

if 1 < x > 0:
   print x

teams = ["Packers", "49ers", "Ravens", "Patriots"]
print {key: value for key, value in enumerate(teams)}

data = {'user': 1, 'name': 'Max', 'three': 4}
is_admin = data.get('admin', False)

from itertools import combinations
teams = ["Packers", "49ers", "Ravens", "Patriots"]
for game in combinations(teams, 2):
    print game

from collections import Counter
print Counter("hello")

lowerlist = ['this', 'is', 'lowercase']
upper = str.upper
upperlist = []
append = upperlist.append
for word in lowerlist:
    append(upper(word))
    print(upperlist)
    #Output = ['THIS', 'IS', 'LOWERCASE']