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Pythonic way to detach a process?

I'm running an etcd process, which stays active until you kill it. (It doesn't provide a daemon mode option.) I want to detach it so I can keep running more python.

What I would do in the shell;

etcd & next_cmd

I'm using python's sh library, at the enthusiastic recommendation of the whole internet. I'd rather not dip into subprocess or Popen, but I haven't found solutions using those either.

What I want;

sh.etcd(detach=True)
sh.next_cmd()

sh.etcd("&")
sh.next_cmd()

Unfortunately detach is not a kwarg and sh treats "&" as a flag to etcd.

Am I missing anything here? What's the good way to do this?

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Using subprocess.Popen('python file.py') on Windows returns FileNotFoundError: [Errno 2] No such file or directory: 'python file.py'. What could be the problem?

Dr_Zaszuś
– Dr_Zaszuś

2018年03月01日 13:57:40 +00:00
Commented Mar 1, 2018 at 13:57
It looks like a good separate question. Related: Calling a python script with input within a python script using subprocess

jfs
– jfs

2018年03月01日 14:06:38 +00:00
Commented Mar 1, 2018 at 14:06
@Dr_Zaszuś Try adding shell=True as a kwarg to your Popen call since the command has multiple words. Or you can pass the words as a list of strings. docs.python.org/3.7/library/subprocess.html#subprocess.Popen

Taylor D. Edmiston
– Taylor D. Edmiston

2018年08月06日 23:19:39 +00:00
Commented Aug 6, 2018 at 23:19

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Pythonic way to detach a process?

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