To specify a working directory for a subprocess in Python, you can use the “subprocess.Popen()” method, passing the desired working directory to the cwd parameter.
This sets the current working directory for the subprocess, meaning that any relative paths used by the subprocess will be relative to the directory specified in cwd.
Here is the data.txt file which we will use in the followingt code example:
import subprocess
# Specify the working directory for the subprocess
working_directory = '/Users/krunallathiya/Desktop/Code/pythonenv/env'
# Command to run in the subprocess
command = ['grep', 'example', 'data.txt']
# Create a subprocess with a specific working directory
with subprocess.Popen(command, cwd=working_directory) as proc:
# You can capture output, handle errors, etc., here
proc.communicate()
Output
Inheritable parameter example
The subprocess.Popen() method creates a subprocess with the given command. The cwd parameter sets the current working directory for the subprocess.
The command [‘grep’, ‘example’, ‘data.txt’] is a Unix/Linux command that searches for the string “example” in the file data.txt. This command is executed in the context of the working directory you specified.
This script will only work on Unix-like systems (Linux, macOS) since it uses the grep command, which is not natively available in Windows.
If you are using Windows, you must use a different command or install a tool that provides Unix-like commands.