How Can I Execute External Programs with Spaces in the Path from Python?

Executing External Programs from Python: Handling Paths with Spaces

The issue described in the original query pertains to executing an external program from a Python script. The provided script attempts to launch Notepad.exe with a path containing spaces, but encounters an error due to the way the shell interprets the command.

To resolve this issue, it is necessary to properly escape the path to handle spaces. Using double quotes around the path, as in the second script example, correctly identifies the full path. However, adding an argument to the command causes it to fail again.

The ideal solution involves using Python's subprocess.call function. This function accepts a list as input, allowing arguments to be easily delimited. By providing the full path and argument as a list, as shown in the provided code, the issue of spaces in the path is gracefully handled.

Using subprocess.call also eliminates the need for specific quoting conventions that differ across shells. It ensures that the external program is executed correctly, regardless of the presence of spaces in the path or arguments.

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