From 021d04069a9c49bc29c6f4415e3d2b4b7a02012e Mon Sep 17 00:00:00 2001
From: Paul Ganssle <pganssle@users.noreply.github.com>
Date: Wed, 16 Jan 2019 11:42:09 -0500
Subject: [PATCH] Build metadata modernization - pyproject.toml and
 python_requires (#3167)

* Added pyproject.toml

This adds the build requirements metadata to the repo, which can be used
with any build tools that implement PEP 517 and PEP 518 (e.g. pip, tox).
It is no longer necessary to have the build dependencies installed when
installing from source.

* Add python_requires for 2.7, 3.4+

This directive specifies in the build metadata which version of CPython
is supported by this version of spaCy, which pip will take into account
when determining what version to download. This will allow you to safely
drop old versions of Python without `pip install spaCy` breaking for those
versions.

* Add Python 3.7 to the trove classifiers
---
 MANIFEST.in    |  1 +
 pyproject.toml | 10 ++++++++++
 setup.py       |  2 ++
 3 files changed, 13 insertions(+)
 create mode 100644 pyproject.toml

diff --git a/MANIFEST.in b/MANIFEST.in
index 4d804a23e..5470ab09c 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,5 @@
 recursive-include include *.h
 include LICENSE
 include README.rst
+include pyproject.toml
 include bin/spacy
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 000000000..294adefe9
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,10 @@
+[build-system]
+requires = ["setuptools",
+            "wheel>0.32.0.<0.33.0",
+            "Cython",
+            "cymem>=2.0.2,<2.1.0",
+            "preshed>=2.0.1,<2.1.0",
+            "murmurhash>=0.28.0,<1.1.0",
+            "thinc>=6.12.1,<6.13.0",
+            ]
+build-backend = "setuptools.build_meta"
diff --git a/setup.py b/setup.py
index f2c45ad6c..4802d8da7 100755
--- a/setup.py
+++ b/setup.py
@@ -220,6 +220,7 @@ def setup_package():
                 'cuda100': ['cupy-cuda100>=4.0', 'thinc_gpu_ops>=0.0.3,<0.1.0'],
                 'ja': ['mecab-python3==0.7']
             },
+            python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*',
             classifiers=[
                 'Development Status :: 5 - Production/Stable',
                 'Environment :: Console',
@@ -236,6 +237,7 @@ def setup_package():
                 'Programming Language :: Python :: 3.4',
                 'Programming Language :: Python :: 3.5',
                 'Programming Language :: Python :: 3.6',
+                'Programming Language :: Python :: 3.7',
                 'Topic :: Scientific/Engineering'],
             cmdclass = {
                 'build_ext': build_ext_subclass},