Replace setup.py with pyproject.toml

.gitlab-ci.yml

@@ -20,7 +20,7 @@ tox-36:
     - tox
   artifacts:
     paths:
-      - .tox/dist/pypfilt-*.zip
+      - .tox/dist/pypfilt-*
 
 # Run all of the test activities in tox.ini using Python 3.7.
 tox-37:

.readthedocs.yml

@@ -8,7 +8,7 @@ python:
   install:
     - requirements: requirements.txt
     - requirements: requirements-rtd.txt
-    - method: setuptools
+    - method: pip
       path: .
 
 sphinx:

pyproject.toml

+# NOTE: setuptools 40.9.0 added support for projects without setup.py.
+
+[build-system]
+requires = [
+    "setuptools >= 40.9",
+    "wheel",
+]
+build-backend = "setuptools.build_meta"

setup.cfg

@@ -33,8 +33,6 @@ install_requires =
     numpy >= 1.17
     scipy >= 0.11
     toml >= 0.10
-setup_requires =
-    setuptools >= 38.3.0
 
 [options.extras_require]
 plot = matplotlib >= 1.5

setup.py

-#!/usr/bin/env python3
-
-from setuptools import setup
-
-
-if __name__ == "__main__":
-    setup()

tox.ini

@@ -14,6 +14,7 @@
 #
 [tox]
 envlist = test,docs
+isolated_build = True
 
 [base]
 pkg = pypfilt