nose替代方案：nose2中对应from nose.tools import *的等价导入

由于nose2完全基于Python标准库的unittest生态，不再提供原nose中from nose.tools import *的批量断言导入方式，你可以通过以下两种方式解决：

方式一：改用unittest测试类风格（推荐） #

将测试代码重构为继承unittest.TestCase的类，使用类中的断言方法（比如self.assertEqual），这是unittest生态的标准写法，兼容性更好：

import unittest
from ex47.game import Room

class TestRoom(unittest.TestCase):
    def test_room(self):
        gold = Room("GoldRoom",
        """This room has gold in it yo
        u can grab. There's a door to the north""")
        self.assertEqual(gold.name, "GoldRoom")
        self.assertEqual(gold.paths, {})

    def test_room_paths(self):
        center = Room("Center", "Test room in the center.")
        north = Room("North", "Test room in the north.")
        south = Room("South", "Test room in the south.")

        center.add_paths({"north": north, "south": south})
        self.assertEqual(center.go("north"), north)
        self.assertEqual(center.go("south"), south)

    def test_map(self):
        start = Room("Start", "you can go west and down the hole.")
        west = Room("Trees", "There are trees here, you can go east.")
        down = Room("Dungeon", "It\'s dark down here, you can go up.")
        start.add_paths({"west": west, 'down': down})
        west.add_paths({'east': start})
        down.add_paths({'up': start})

        self.assertEqual(start.go('west'), west)
        self.assertEqual(start.go('west').go('east'), start)
        self.assertEqual(start.go("down").go('up'), start)

方式二：保持函数式测试风格 #

如果不想修改测试结构，可直接从unittest导入断言函数，替换原代码中的assert_equal：

1. 修改导入语句：

from unittest import assertEqual
from ex47.game import Room

2. 将代码中所有的assert_equal替换为assertEqual（注意大小写，unittest采用驼峰命名）。

这样修改后，你的测试代码就能在nose2环境下正常运行。

内容的提问来源于stack exchange，提问作者user20495043