Determine module requirements of uninstalled PyPI packages.

pipdep

#!/bin/sh

set -eu

# Determine module requirements of uninstalled PyPI packages.
# For installed modules, use `pip show package1 [ package2 ... ]`

script="$(basename "$0")"
[ $# -eq 0 ] && {
  >&2 echo "Usage: $script package1 [ package2 ... ]"
  exit 1
}

tmpdir="/run/user/$(id -u)"
[ -w "$tmpdir" ] || tmpdir=/tmp
tmpdir="$tmpdir/$script"
[ -e "$tmpdir" ] && rm -r "$tmpdir"

pip download "$@" --dest "$tmpdir" --no-binary :all: |
  sed -n 's/^Collecting \(.*\) (from \(.*\))/\2: \1/p'