python - Tensorflow session - session 上下文的范围？

Question

import tensorflow as tf

...

with tf.Session() as sess:
    output = sess.run(result)
    print(output)

print(output)

为什么最后一行有效？ output 是否超出了范围，因为它是在生成器内声明的？

Answer 1

在 python with 中没有类似作用域的方法，这篇文章解释得更清楚 Variable defined with with-statement available outside of with-block?

为您节省一些时间

the context manager will be available outside the with statement and that is not implementation or version dependent. with statements do not create a new execution scope.