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diff --git a/development/python3-numpy/README b/development/python3-numpy/README
new file mode 100644
index 0000000000..5ac99577b3
--- /dev/null
+++ b/development/python3-numpy/README
@@ -0,0 +1,38 @@
+NumPy is a general-purpose array-processing package designed to
+efficiently manipulate large multi-dimensional arrays of arbitrary
+records without sacrificing too much speed for small multi-dimensional
+arrays.  NumPy is built on the Numeric code base and adds features
+introduced by numarray as well as an extended C-API and the ability to
+create arrays of arbitrary type which also makes NumPy suitable for
+interfacing with general-purpose data-base applications.
+
+There are also basic facilities for discrete fourier transform, basic
+linear algebra and random number generation.
+
+If you need to build numpy for debugging, set DEBUG=y. If you use
+software which is having problems with numpy's new relaxed strides
+checking, set NPY_RSC=0.
+
+It is highly recommended to install libraries implementing BLAS and
+LAPACK before installing numpy. You may choose between:
+   a) BLAS and LAPACK (reference but unoptimized and thus slow)
+   b) OpenBLAS (optimized, provides LAPACK too)
+   c) ATLAS and LAPACK (optimized), good to read README.ATLAS
+All these are available on SlackBuilds.org.
+
+If you want to use the UMFPACK library instead of SuperLU to solve
+unsymmetric sparse linear systems, then run this Slackbuild with
+NO_UMFPACK set to "no" and then install scikit-umfpack on top of
+scipy. In this context, UMFPACK is an optional dependency for
+numpy.
+
+IMPORTANT: The version installed by this SlackBuild does NOT include the
+           oldnumeric and numarray compatibility modules since
+           starting with version 1.9.0 these modules got removed by
+           the numpy developers.  If you need these compatibility
+           modules please consider the numpy-legacy SlackBuild which
+           is available for python2 only and does not conflict with this
+           installation of numpy.
+
+This python3-numpy SlackBuild creates bindings for python3 and can be
+installed without conflict alongside the python2-numpy SlackBuild.
diff --git a/development/python3-numpy/README.ATLAS b/development/python3-numpy/README.ATLAS
new file mode 100644
index 0000000000..bf8972befa
--- /dev/null
+++ b/development/python3-numpy/README.ATLAS
@@ -0,0 +1,10 @@
+numpy is able to autodetect the ATLAS libraries, but by default will try
+to use the shared, threaded ones. It would use something else just if these
+are missing. You may force numpy to have another behaviour.
+
+a) Set just ATLAS_NO_THREADS to "yes". In this case numpy will be forced to
+   look for the shared, single threaded libs.
+b) Set just ATLAS_SHARED to "no". In this case numpy will be forced to look for
+   the static, threaded ATLAS libraries.
+c) Set ATLAS_SHARED to "no" and ATLAS_NO_THREADS to "yes". In this case numpy
+   will be forced to look for the static, single threaded ATLAS libraries.
diff --git a/development/python3-numpy/python3-numpy.SlackBuild b/development/python3-numpy/python3-numpy.SlackBuild
new file mode 100644
index 0000000000..2eb7f42e0b
--- /dev/null
+++ b/development/python3-numpy/python3-numpy.SlackBuild
@@ -0,0 +1,151 @@
+#!/bin/bash
+
+# Slackware build script for numpy3
+
+# Copyright 2015-2022 Christoph Willing  Brisbane, Australia
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Based with thanks on original numpy scripts by
+# Aleksandar Samardzic <asamardzic@gmail.com> and Serban Udrea <S.Udrea@gsi.de>
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=python3-numpy
+SRCNAM=numpy
+VERSION=${VERSION:-1.22.3}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+PYTHON_VERSIONS="3"
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=${PKG:-$TMP/package-$PRGNAM}
+OUTPUT=${OUTPUT:-/tmp}
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $SRCNAM-$VERSION
+tar xf $CWD/$SRCNAM-$VERSION.tar.gz
+cd $SRCNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# You may want to force numpy to link against a special kind of ATLAS
+#
+ATLAS_SHARED="${ATLAS_SHARED:-yes}"
+ATLAS_SHARED=$(echo "$ATLAS_SHARED"|cut -b 1|tr a-z A-Z)
+ATLAS_NO_THREADS="${ATLAS_NO_THREADS:-no}"
+ATLAS_NO_THREADS=$(echo "$ATLAS_NO_THREADS"|cut -b 1|tr a-z A-Z)
+
+if [ "$ATLAS_SHARED" = "Y" ]; then
+  if [ "$ATLAS_NO_THREADS" = "Y" ]; then
+    echo -e "[atlas]\natlas_libs = satlas" >> site.cfg
+    echo -e "lapack_libs = satlas\nlapack_atlas = satlas\n" >> site.cfg
+  fi
+else
+  if [ "$ATLAS_NO_THREADS" = "Y" ]; then
+    echo -e "[atlas]\natlas_libs = f77blas,cblas,atlas" >> site.cfg
+    echo -e "lapack_libs = lapack\nlapack_atlas = lapack\n" >> site.cfg
+  else
+    echo -e "[atlas]\natlas_libs = ptf77blas,ptcblas,atlas" >> site.cfg
+    echo -e "lapack_libs = ptlapack\nlapack_atlas = ptlapack\n" >> site.cfg
+  fi
+fi
+
+NO_UMFPACK=${NO_UMFPACK:-yes}
+case "$NO_UMFPACK" in
+ [yY]|[yY][eE][sS]) NO_UMFPACK="y" ;;
+                 *) NO_UMFPACK="" ;;
+esac
+
+if [ ! "$NO_UMFPACK" ]; then
+  echo -e "[amd]\nlibrary_dirs = /usr/lib${LIBDIRSUFFIX}" >> site.cfg
+  echo -e "include_dirs = /usr/include/amd\namd_libs = amd\n" >> site.cfg
+  echo -e "[umfpack]\nlibrary_dirs = /usr/lib${LIBDIRSUFFIX}" >> site.cfg
+  echo -e "include_dirs = /usr/include/umfpack\numfpack_libs = umfpack\n" \
+          >> site.cfg
+fi
+
+DEBUG=${DEBUG:-no}
+case "$DEBUG" in
+ [yY]|[yY][eE][sS]) DEBUG="y" ;;
+                 *) DEBUG="" ;;
+esac
+
+for v in $PYTHON_VERSIONS ; do
+  if [ $(which python$v 2>/dev/null) ]; then
+    if [ ! "$DEBUG" ]; then
+      NPY_RELAXED_STRIDES_CHECKING=${NPY_RSC:-1} python$v setup.py install --root $PKG
+
+      find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
+      | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+    else
+      NPY_RELAXED_STRIDES_CHECKING=${NPY_RSC:-1} python$v setup.py build --debug
+      python$v setup.py install --root $PKG
+    fi
+  fi
+done
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a LICENSE.txt THANKS.txt INSTALL.rst.txt PKG-INFO \
+  $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+find $PKG/usr/doc -type f -exec chmod 0644 {} \;
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
diff --git a/development/python3-numpy/python3-numpy.info b/development/python3-numpy/python3-numpy.info
new file mode 100644
index 0000000000..cb7cf8adbc
--- /dev/null
+++ b/development/python3-numpy/python3-numpy.info
@@ -0,0 +1,10 @@
+PRGNAM="python3-numpy"
+VERSION="1.22.3"
+HOMEPAGE="https://www.numpy.org/"
+DOWNLOAD="https://github.com/numpy/numpy/releases/download/v1.22.3/numpy-1.22.3.tar.gz"
+MD5SUM="3305c27e5bdf7f19247a7eee00ac053e"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Christoph Willing"
+EMAIL="chris.willing@linux.com"
diff --git a/development/python3-numpy/slack-desc b/development/python3-numpy/slack-desc
new file mode 100644
index 0000000000..77313d1d8f
--- /dev/null
+++ b/development/python3-numpy/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+             |-----handy-ruler------------------------------------------------------|
+python3-numpy: python3-numpy (Python3 extension for scientific computing)
+python3-numpy:
+python3-numpy: NumPy is an extension to the Python programming language, adding
+python3-numpy: support for large, multi-dimensional arrays and matrices along
+python3-numpy: with a large library of high-level mathematical functions to
+python3-numpy: operate on these arrays.
+python3-numpy:
+python3-numpy: This packages contains NumPy for python3
+python3-numpy:
+python3-numpy: Homepage: http://www.numpy.org/
+python3-numpy: