How can I specify working directory for a subprocess

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subprocess.Popen takes a cwd argument to set the Current Working Directory; you’ll also want to escape your backslashes ('d:\\test\\local'), or use r'd:\test\local' so that the backslashes aren’t interpreted as escape sequences by Python. The way you have it written, the \t part will be translated to a tab.

So, your new line should look like:

subprocess.Popen(r'c:\mytool\tool.exe', cwd=r'd:\test\local')

To use your Python script path as cwd, import os and define cwd using this:

os.path.dirname(os.path.realpath(__file__))

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