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rc/sh/pippy

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#!/usr/bin/env sh
# YES_ZSH
#. ~/sh/maybesudo
#. ~/sh/has
pippy() { ### @-
### install Python packages using pip,
### but only update their dependencies as required.
### this uses [`maybesudo`](#maybesudo_-shmaybesudo) internally.
local sudo="$(has sudo || echo maybesudo_)"
"$sudo" py -m pip install --upgrade --upgrade-strategy only-if-needed "$@"
}
[ "${SOURCING:-0}" -gt 0 ] || pippy "$@"