gen.py 文件源码

def __init__(self, children, quiet_exceptions=()):
        self.keys = None
        if isinstance(children, dict):
            self.keys = list(children.keys())
            children = children.values()
        self.children = []
        for i in children:
            if not isinstance(i, YieldPoint):
                i = convert_yielded(i)
            if is_future(i):
                i = YieldFuture(i)
            self.children.append(i)
        assert all(isinstance(i, YieldPoint) for i in self.children)
        self.unfinished_children = set(self.children)
        self.quiet_exceptions = quiet_exceptions