Enable modernized PEP-518/517 builds.

.github/workflows/ci.yml

@@ -27,3 +27,6 @@ jobs:
     - name: Test with pytest
       run: |
         pipenv run test
+    - name: Test package build and install
+      run: |
+        pip install .

.gitignore

@@ -182,12 +182,12 @@ Temporary Items
 ### VirtualEnv template
 # Virtualenv
 # http://iamzed.com/2009/05/07/a-primer-on-virtualenv/
-[Bb]in
-[Ii]nclude
-[Ll]ib
-[Ll]ib64
-[Ll]ocal
-[Ss]cripts
+*/[Bb]in/
+*/[Ii]nclude/
+*/[Ll]ib/
+*/[Ll]ib64/
+*/[Ll]ocal/
+*/[Ss]cripts/
 pyvenv.cfg
 .venv
 pip-selfcheck.json

Pipfile

@@ -10,6 +10,11 @@ flake8 = "*"
 pytest-cov = "*"
 isort = "*"
 
+# For `publish` script.
+build = "*"
+twine = "*"
+setuptools_scm = "*"
+
 [packages]
 numpy = "*"
 scikit-learn = "*"
@@ -21,3 +26,4 @@ python_version = "3.8"
 isort = "isort . -c"
 test = "pytest tests/test_scheme.py tests/test_reporters.py tests/test_v1.py --cov=seqeval --cov-report=term-missing -vv"
 flake8 = "flake8 seqeval --ignore=F401,E741"
+publish = "python scripts/publish.py"

pyproject.toml

@@ -0,0 +1,5 @@
+[build-system]
+requires = ["setuptools", "setuptools_scm"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]

scripts/publish.py

@@ -0,0 +1,25 @@
+# /// script
+# requires-python = ">=3.9"
+# dependencies = [
+#   "build",
+#   "twine",
+# ]
+# ///
+import glob
+import itertools
+import subprocess
+from pathlib import Path
+
+
+def publish():
+    subprocess.run(["pyproject-build", "."], check=True)
+    dists = list(
+        itertools.chain.from_iterable(
+            Path("dist").glob(dist_glob) for dist_glob in ("*.tar.gz", "*.whl")
+        )
+    )
+    subprocess.run(["twine", "upload"] + dists, check=True)
+
+
+if __name__ == "__main__":
+    publish()

setup.py

@@ -19,15 +19,13 @@
     long_description = '\n' + f.read()
 
 if sys.argv[-1] == 'publish':
-    os.system('python setup.py sdist bdist_wheel upload')
-    sys.exit()
+    sys.exit("After running `pipenv install --dev`, you can use `pipenv run publish` instead.")
 
 required = ['numpy>=1.14.0', 'scikit-learn>=0.21.3']
 
 setup(
     name=NAME,
     use_scm_version=True,
-    setup_requires=['setuptools_scm'],
     description=DESCRIPTION,
     long_description=long_description,
     long_description_content_type='text/markdown',