On Thu, Aug 26, 2021 at 5:53 AM Evan Greenup via Python-ideas <
python-ideas@python.org> wrote:
> Currently, when what to execute external command, either os.system() or
> subprocess functions should be invoked.
>
> However, it is not so convenient, it would be nice to use "``" symbol to
> brace the shell command inside.
>
> like:
>
> stdout_result_str = `cat file.txt | sort | grep hello`
>
> Its is enhanced feature which combine both subprocess and os.system
>
> Because, subprocess can return output of file, but does not support pipe
> in command.
>
subprocess.run('cat file.txt | sort |grep hello', shell=True
capture_output=True, check=True, text=True, encoding="utf8").stdout
you can use any piping or redirection you like.
However, I do like the idea of run() having the ability to easily chain
commands without the need to pull in the shell.
Is this too magical? result = run('cat file.txt') | run('sort) | run('grep
hello', capture_output=True, text=True).stdout
I'm sure there are other approaches. We don't often have to worry about
file handles in python, and it would be nice
to remove this worry from subprocess pipes even more than it already is.
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