win10 + cygwin + clion
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基本实现了书上所有的功能，从零构建一个简单的Python虚拟机。
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除了GC还存在一些问题，需要参考作者的新项目HiLang改造为链表记录对象的创建。
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对随书源码的几个小问题做了修改，CMakeLists也做了一点调整。
最后一章实现了yield和generator以后，就可以写出一个最简单的协程：
# Two simple generator functions def countdown(n): while n > 0: print('T-minus', n) yield n -= 1 print('Blastoff!') def countup(n): x = 0 while x < n: print('Counting up', x) yield x += 1 class TaskScheduler: def __init__(self): self._task_queue = [] def new_task(self, task): ''' Admit a newly started task to the scheduler ''' self._task_queue.append(task) def run(self): ''' Run until there are no more tasks ''' while len(self._task_queue) > 0: task = self._task_queue.popleft() try: # Run until the next yield statement task.next() self._task_queue.append(task) except StopIteration: # Generator is no longer executing pass # Example use sched = TaskScheduler() sched.new_task(countdown(2)) sched.new_task(countup(5)) sched.run()
输出结果：
[T-minus, 2] [Counting up, 0] [T-minus, 1] [Counting up, 1] Blastoff! [Counting up, 2] [Counting up, 3] [Counting up, 4]