python/PyStemmer: Add python3 support.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

python/PyStemmer/PyStemmer.SlackBuild

@@ -24,7 +24,7 @@
 
 PRGNAM=PyStemmer
 VERSION=${VERSION:-1.3.0}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -62,6 +62,11 @@ cd $TMP
 rm -rf $PRGNAM-$VERSION
 tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
 cd $PRGNAM-$VERSION
+
+# Patch for python 3.7 compatibility
+# https://github.com/snowballstem/pystemmer/pull/21/commits/b29ce2109f49c0b82517fa9d3e2bbacc1f8b34ec
+patch  < $CWD/python-3.7-compatibility.patch
+
 chown -R root:root .
 find -L . \
  \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
@@ -71,6 +76,9 @@ find -L . \
 
 python setup.py install --root=$PKG
 
+#CFLAGS="$SLKCFLAGS" \
+python3 setup.py install --root=$PKG
+
 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
 

python/PyStemmer/PyStemmer.info

@@ -1,10 +1,10 @@
 PRGNAM="PyStemmer"
 VERSION="1.3.0"
-HOMEPAGE="http://snowball.tartarus.org/"
+HOMEPAGE="https://snowballstem.org/"
 DOWNLOAD="https://pypi.python.org/packages/21/ee/19e0e4ec9398cc022617baa5f013fd415cce4887748245126aa6d4fac3c6/PyStemmer-1.3.0.tar.gz"
 MD5SUM="46ee623eeeba5a7cc0d95cbfa7e18abd"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES=""
+REQUIRES="python3-Cython"
 MAINTAINER="Nikos Giotis"
 EMAIL="nikos.giotis@gmail.com"

python/PyStemmer/python-3.7-compatibility.patch

@@ -0,0 +1,66 @@
+From b29ce2109f49c0b82517fa9d3e2bbacc1f8b34ec Mon Sep 17 00:00:00 2001
+From: konstantin <kslavnov@gmail.com>
+Date: Sun, 30 Sep 2018 20:30:07 +0300
+Subject: [PATCH] Fix installation for python 3.7
+
+Changes list:
+- Use setuptools instead of distutils to handle `setup_requires` in `setup()`.
+- Require Cython package for setup and always build `.pyx` to `.c`. It also requires `python-dev` to be installed (see `.travis.yml`).
+---
+ setup.py    | 27 +++++++++------------------
+ 1 files changed, 9 insertions(+), 18 deletions(-)
+ 
+diff --git a/setup.py b/setup.py
+index 5fa89f5..fc53b69 100644
+--- a/setup.py
++++ b/setup.py
+@@ -1,13 +1,13 @@
+ #!/usr/bin/env python
+ 
+-from distutils.core import setup, Extension
++from setuptools import setup, Extension
+ import os.path
+ 
+-try:
++
++def build_ext(*args, **kwargs):
+     from Cython.Distutils import build_ext
+-    have_pyrex = 1
+-except:
+-    have_pyrex = 0
++    return build_ext(*args, **kwargs)
++
+ 
+ # Directory which libstemmer sources are unpacked in.
+ library_dir = 'libstemmer_c'
+@@ -39,16 +39,8 @@
+ # Set the include path to include libstemmer.
+ include_dirs = ('src', os.path.join(library_dir, 'include'))
+ 
+-if have_pyrex:
+-    # Add the pyrex sources, and a special rule so distutils knows how to
+-    # use them.
+-    src_files.append('src/Stemmer.pyx')
+-    cmdclass = {'build_ext': build_ext}
+-else:
+-    # Add just the C sources.
+-    src_files.append('src/Stemmer.c')
+-    cmdclass = {}
+-      
++src_files.append('src/Stemmer.pyx')
++
+ long_description = r"""
+ 
+ Stemming algorithms
+@@ -125,9 +117,8 @@
+       "Topic :: Text Processing :: Indexing",
+       "Topic :: Text Processing :: Linguistic",
+       ],
+-
++      setup_requires=['Cython>=0.28.5,<1.0'],
+       ext_modules = [Extension('Stemmer', src_files,
+                                include_dirs = include_dirs)],
+-      cmdclass = cmdclass
++      cmdclass = {'build_ext': build_ext}
+      )
+-

python/PyStemmer/slack-desc

@@ -16,4 +16,4 @@ PyStemmer: and information retrieval software; for example, a search with
 PyStemmer: stemming enabled should be able to find a document containing 
 PyStemmer: "cycling" given the query "cycles".
 PyStemmer:
-PyStemmer: http://snowball.tartarus.org/
+PyStemmer: http://snowballstem.org/