diff --git a/python/ply/README b/python/ply/README
deleted file mode 100644
index 2f2cf04e38..0000000000
--- a/python/ply/README
+++ /dev/null
@@ -1,2 +0,0 @@
-PLY is a 100% Python implementation of the common parsing tools lex
-and yacc.
diff --git a/python/ply/ply.SlackBuild b/python/ply/ply.SlackBuild
deleted file mode 100644
index 179d6b7aae..0000000000
--- a/python/ply/ply.SlackBuild
+++ /dev/null
@@ -1,90 +0,0 @@
-#!/bin/sh
-
-# Slackware build script for ply
-
-# Copyright 2014-2018  Dimitris Zlatanidis  Orestiada, Greeece
-# 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.
-
-PRGNAM=ply
-VERSION=${VERSION:-3.11}
-BUILD=${BUILD:-1}
-TAG=${TAG:-_SBo}
-
-if [ -z "$ARCH" ]; then
-  case "$( uname -m )" in
-    i?86) ARCH=i586 ;;
-    arm*) ARCH=arm ;;
-       *) ARCH=$( uname -m ) ;;
-  esac
-fi
-
-CWD=$(pwd)
-TMP=${TMP:-/tmp/SBo}
-PKG=$TMP/package-$PRGNAM
-OUTPUT=${OUTPUT:-/tmp}
-
-if [ "$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
-
-set -e
-
-rm -rf $PKG
-mkdir -p $TMP $PKG $OUTPUT
-cd $TMP
-rm -rf $PRGNAM-$VERSION
-tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
-cd $PRGNAM-$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 {} \;
-
-python setup.py install --root=$PKG
-
-# Python 3 support.
-if $(python3 -c 'import sys' 2>/dev/null); then
-  python3 setup.py install --root=$PKG
-fi
-
-find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
-  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
-
-mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
-
-cp -a ANNOUNCE CHANGES PKG-INFO TODO $PKG/usr/doc/$PRGNAM-$VERSION
-cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
-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:-tgz}
diff --git a/python/ply/ply.info b/python/ply/ply.info
deleted file mode 100644
index a9b9df8638..0000000000
--- a/python/ply/ply.info
+++ /dev/null
@@ -1,10 +0,0 @@
-PRGNAM="ply"
-VERSION="3.11"
-HOMEPAGE="http://www.dabeaz.com/ply/"
-DOWNLOAD="https://pypi.python.org/packages/e5/69/882ee5c9d017149285cab114ebeab373308ef0f874fcdac9beb90e0ac4da/ply-3.11.tar.gz"
-MD5SUM="6465f602e656455affcd7c5734c638f8"
-DOWNLOAD_x86_64=""
-MD5SUM_x86_64=""
-REQUIRES=""
-MAINTAINER="Dimitris Zlatanidis"
-EMAIL="d.zlatanidis@gmail.com"
diff --git a/python/ply/slack-desc b/python/ply/slack-desc
deleted file mode 100644
index 62a84d58d8..0000000000
--- a/python/ply/slack-desc
+++ /dev/null
@@ -1,19 +0,0 @@
-# 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------------------------------------------------------|
-ply: ply (Python Lex & Yacc)
-ply:
-ply: PLY is yet another implementation of lex and yacc for Python.
-ply: Some notable features include the fact that its implemented entirely
-ply: n Python and it uses LALR(1) parsing which is efficient and well
-ply: suited for larger grammars.
-ply:
-ply: Homepage: http://www.dabeaz.com/ply/
-ply:
-ply:
-ply: