[ptx]

It's similar if you're invoking through the shell, which should be avoided for precisely this reason, but if you're launching a program directly (through execv or CreateProcess) there is one big difference:

On Linux the parsing is done on the caller's side of the interface, so the caller knows what quoting rules to apply – could be Python's rules if they're using Python to construct the argument array, bash's rules if they're using bash, etc.

On Windows, the parsing is done on the receiver's side of the interface, so the caller can't know how it's supposed to be quoted unless they have special knowledge of a specific receiver and its parsing rules.