如何从 expect 捕获 shell 变量中的 python 输出？

Question

我想从 python 获取 pw 值，类似于

spawn python3 $pscript
expect "password:"
send "$enc_password\r"
set outcome $expect_out(buffer) --getting empty array in outcome

file.py

import keyring
pw = keyring.get_password("system","user")
print(pw)

如果有任何其他方法可以做到这一点，请告诉我。

Answer 1

我刚刚错过了一件事：

spawn python3 $pscript
expect "password:"
send "$enc_password\r"
expect "blah" --this extra expect, else the outcome will be an empty array
set outcome $expect_out(buffer)