Hi, I would like to know if you're open to supporting `exec -a` or an environment variable for setting `argv[0]`, and have some pointers as to where that should be implemented.
On Nixpkgs we typically use wrappers to set environment variables like PATH or PYTHONPATH for individual programs. Consider a program named `prog`. We move the original program `prog` to `.prog-wrapped` and then create a wrapper `prog` that does `exec -a prog .prog-wrapped`. Unfortunately `exec -a` does not work with Python. The process is still named `.prog-wrapped` (although that's not really a problem) but worse, `sys.argv[0]` is also `.prog-wrapped`. Currently we inject some code in programs that sets `sys.argv=[0] = "prog" but this is fragile and I would prefer to get rid of this. Kind regards, Frederik
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