Enable setuptools build process

Author: kbattocchi

azure-pipelines.yml

@@ -194,8 +194,9 @@ jobs:
   steps:
   - template: azure-pipelines-steps.yml
     parameters:
+      package: '-e .'
       body:
-        - script: 'python setup.py pytest'
+        - script: 'pip install pytest pytest-cov pytest-xdist && pytest'
           displayName: 'Unit tests'
           env:
             PYTEST_ADDOPTS: '-m "not (notebook or automl)"'

econml/grf/setup.py

@@ -0,0 +1,17 @@
+[build-system]
+requires = [
+    "setuptools",
+    "wheel",
+    "Cython",
+    "numpy == 1.19.3",
+    "scipy"
+]
+build-backend = "setuptools.build_meta"
+
+[tool.pytest.ini_options]
+addopts = "--junitxml=junit/test-results.xml -n auto --strict-markers --cov-config=setup.cfg --cov=econml --cov-report=xml"
+markers = [    
+    "slow",
+    "notebook",
+    "automl"
+]

econml/tree/setup.py

@@ -32,10 +32,7 @@ classifiers =
 
 [options]
 packages = find_namespace:
-setup_requires =
-    pytest-runner
-    sphinx < 3.2
-    sphinx_rtd_theme
+
 install_requires =
     numpy
     scipy != 1.4.0
@@ -77,13 +74,6 @@ include =
 ; include all CSV files as data
 * = *.csv
 
-[tool:pytest]
-addopts = --junitxml=junit/test-results.xml -n auto --strict --cov-config=setup.cfg --cov=econml --cov-report=xml
-markers =
-    slow
-    notebook
-    automl
-
 ; coverage configuration
 [coverage:run]
 omit = econml/tests/*

pyproject.toml

@@ -1,22 +1,11 @@
-import sys
-import os
+from setuptools import setup
+from setuptools.extension import Extension
+from Cython.Build import cythonize
+import numpy as np
 
 
-def configuration(parent_package='', top_path=None):
-    from numpy.distutils.misc_util import Configuration
-    import numpy
-
-    libraries = []
-    if os.name == 'posix':
-        libraries.append('m')
-
-    config = Configuration(None, parent_package, top_path)
-
-    config.add_subpackage('econml')
-
-    return config
-
-
-if __name__ == '__main__':
-    from numpy.distutils.core import setup
-    setup(**configuration(top_path='').todict())
+# configuration is all pulled from setup.cfg
+setup(ext_modules=cythonize([Extension("*", ["**/*.pyx"],
+                                       include_dirs=[np.get_include()])],
+                            language_level="3"),
+      zip_safe=False)