问题描述
我正在尝试让Python通过Popen()发送EOF信号( + ).不幸的是，我在类似* nix的系统上找不到Popen()信号的任何参考.这里有人知道如何发送这样的EOF信号吗?另外，是否有任何可以接收的可接受信号的参考?
I'm trying to get Python to send the EOF signal (+) via Popen(). Unfortunately, I can't find any kind of reference for Popen() signals on *nix-like systems. Does anyone here know how to send an EOF signal like this? Also, is there any reference of acceptable signals to be sent?
推荐答案
EOF并不是您可以提出的信号，它是每个通道的特殊情况. (按 + 表示交互式输入结束实际上是终端驱动程序的功能.当在新行的开头按此组合键时，终端驱动程序告诉OS内核输入流上没有其他可用的输入.)
EOF isn't really a signal that you can raise, it's a per-channel exceptional condition. (Pressing + to signal end of interactive input is actually a function of the terminal driver. When you press this key combination at the beginning of a new line, the terminal driver tells the OS kernel that there's no further input available on the input stream.)
通常，在管道上向EOF发出信号的正确方法是关闭写通道.假设您使用stdin=PIPE创建了Popen对象，看起来您应该能够做到这一点.
Generally, the correct way to signal EOF on a pipe is to close the write channel. Assuming that you created the Popen object with stdin=PIPE, it looks like you should be able to do this.
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