>>> from hw3 import *
>>> x = location('X', 0, 1, 'test'); name(x)
'X'
>>> lattitude(x) == 0
True
>>> longitude(x) == 1
True
>>> type(x)
'test'
>>> print_location(location('X', 0.0, 1.5, 'test'))
X (test) at coordinates 0.0, 1.5
>>> llist = [location('A', 0,0,'t1'), location('B', 1, 0,'t1'), location('C', 3, 0, 't2')]; nearest_location(location('X', 0.1,0.1, 't1'), llist, 't1') == llist[0]
True
>>> nearest_location(location('X', 0.1,0.1, 't1'), llist, 't2') == llist[0]
False
>>> nearest_location(location('X', 0.1,0.1, 't1'), llist, 't2') == llist[2]
True
>>> nearest_location(location('X', 2.1,0.1, 't1'), llist, 't1') == llist[1]
True
>>> nearest_location(location('X', 2.1,0.1, 't1'), llist) == llist[2]
True
>>> import sys, io; sys.modules['hw3'].__dict__['longitude'] = lambda x: x['longitude']; sys.modules['hw3'].__dict__['lattitude'] = lambda x: x['lattitude'];sys.modules['hw3'].__dict__['name'] = lambda x: x['name'];sys.modules['hw3'].__dict__['type'] = lambda x: x['type']; abs(distance({'name':'A','lattitude':34.5, 'longitude':35.5,'type':'t'}, {'name':'B','lattitude':36.5, 'longitude':37.5,'type':'t'}) - 403.357) < 0.001
True
>>> abs(distance({'name':'A','lattitude':34.5, 'longitude':35.5,'type':'t'}, {'name':'B','lattitude':34.5, 'longitude':35.5,'type':'t'})) < 1e-5 
True
>>> stdout = sys.stdout; sys.stdout = io.StringIO();print_location({'name':'A', 'lattitude':0.5, 'longitude':1.5, 'type':'t1'}); answer = sys.stdout.getvalue()
>>> sys.stdout = stdout
>>> 'A' in answer and '0.5' in answer and '1.5' in answer and 't1' in answer
True
>>> def distance(a, b):
...     from math import pi, cos
...     phi_m = pi/180 * (a['lattitude'] + b['lattitude']) / 2
...     k1 = 111.13209 - 0.56605 * cos(2*phi_m) + 0.00120 * cos(4*phi_m)
...     k2 = 111.41513 * cos(phi_m) - 0.0945 * cos(3*phi_m) \
...         + 0.00012*cos(5*phi_m)
...     lat_dist = (a['lattitude'] -b['lattitude']) * k1
...     lon_dist = (a['longitude'] - b['longitude']) * k2
...     return abs(lon_dist) + abs(lat_dist)
...
>>> sys.modules['hw3'].__dict__['distance'] = distance
>>> llist = [{'name':'A', 'lattitude':0,'longitude':0,'type':'t1'}, {'name':'B', 'lattitude':1, 'longitude':0,'type':'t1'}, {'name':'C', 'lattitude':3, 'longitude':0, 'type':'t2'}]; nearest_location({'name':'X', 'lattitude':0.1,'longitude':0.1, 'type':'t1'}, llist, 't1') == llist[0]
True
>>> nearest_location({'name':'X', 'lattitude':0.1,'longitude':0.1, 'type':'t1'}, llist, 't2') == llist[0]
False
>>> nearest_location({'name':'X', 'lattitude':0.1,'longitude':0.1, 'type':'t1'}, llist, 't2') == llist[2]
True
>>> nearest_location({'name':'X', 'lattitude':2.1,'longitude':0.1, 'type':'t1'}, llist, 't1') == llist[1]
True
>>> nearest_location({'name':'X', 'lattitude':2.1,'longitude':0.1, 'type':'t1'}, llist) == llist[2]
True
>>> pick_cherries(['cherry3', None])
cherry3
>>> pick_cherries(['cherry3', ['cherry2', None]])
cherry3
cherry2
>>> pick_cherries(['cherry3', ['cherry2', ['cherry1', None]]])
cherry3
cherry2
cherry1
>>> pick_cherries(['a', ['b', ['c', ['d', ['e', ['f', None]]]]]])
a
b
c
d
e
f
>>> all_lc(lambda x: x >= 0, [1, 2, 3, 4, 5])
True
>>> all_lc(lambda x: x >= 0, [1, 2, 3, 4, 5, 10000, -1])
False
>>> all_lc(lambda x: x <= 10000, [1, 2, 3, 4, 5, 10000, -1])
True
>>> all_lc(lambda x: x % 2 != 0, [1, 2, 3, 5, 1, -1])
False
>>> a = [n * 'z' for n in range(10, 0, -1)]; length_sort(a); a
['z', 'zz', 'zzz', 'zzzz', 'zzzzz', 'zzzzzz', 'zzzzzzz', 'zzzzzzzz', 'zzzzzzzzz', 'zzzzzzzzzz']
>>> len(a)
10
>>> a = ['abcdefgh', 'bbdef', 'cdefa', 'ddd', 'ddddd', 'eb', 'ea', 'zzzzz', 'a', 'z']; length_sort(a)
>>> a
['a', 'z', 'ea', 'eb', 'ddd', 'bbdef', 'cdefa', 'ddddd', 'zzzzz', 'abcdefgh']
>>> snake = initialize_snake(10, 100)
>>> move_up(snake)
(10, 101)
>>> move_right(snake)
(11, 101)
>>> move_up(snake) == (11, 102)
True
>>> move_left(snake)
(10, 102)
>>> move_left(snake) == (9, 102)
True
>>> move_down(snake) == (9, 101)
True
>>> move_down(snake)
(9, 100)
>>> move_left(snake)
(8, 100)
>>> move_up(snake)
(8, 101)
>>> move_right(snake)
'GAME OVER'