iberieve

SEJeff has nailed it [as he frequently seems to]!

It's not immediately clear to me why the author is referencing pipes at all rather than just file buffers or some other type of buffer.

First time I've seen this and it looks amazing. Poorly named perhaps, though it is certainly a nice option to be aware of! Thank you for sharing.

One question - In this py-sh system are there error control options like what bash provides? e.g.:

    set -o errexit
    set -o pipefail
    set -o nounset