我试图知道是否有同时展开两台发电机的pythonic方法:
e.g。我有两个行数相同的文件。当然,我可以在阅读完整篇文章后拉链。
但是有可能同时从两个发电机产生元件吗? 当我尝试运行这样的代码时,它会抱怨:
return (yield from test, yield from predict)
^
SyntaxError: invalid syntax
这里,test
和predict
是通过这种方式打开两个文件获得的两个生成器:
with open(test_filename,"rt") as test:
with open(predict_filename,"rt") as predict:
for couple in yield_couples(test,predict):
do_something(couple)
def yield_couples(test,predict,category):
return (yield from test, yield from predict)
答案 0 :(得分:1)
我可能会误解,但听起来你正在寻找zip()。你可以这样做:
with open(test_filename,"rt") as test:
with open(predict_filename,"rt") as predict:
for couple in zip(test,predict):
do_something(couple)