As that argument's name suggests, that's invoking a shell (or whatever the `shell` env var is set to, IIRC). Shells are excellent at invoking commands and pipi

As that argument's name suggests, that's invoking a shell (or whatever the `shell` env var is set to, IIRC). Shells are excellent at invoking commands and piping, as I said. Doing things like piping with Python instead of a shell is indeed more complicated than it needs to be. That was my point ;)