Convert flit.ini to pyproject.toml

flit.ini

@@ -1,24 +0,0 @@
-[metadata]
-module = nsist
-author = Thomas Kluyver
-author-email = thomas@kluyver.me.uk
-dist-name = pynsist
-home-page = https://pynsist.readthedocs.io/en/latest/
-description-file = README.rst
-requires-python = >=3.5
-requires = requests
-    requests_download
-    jinja2
-    yarg
-    win_cli_launchers
-dev-requires = testpath
-classifiers = License :: OSI Approved :: MIT License
-    Intended Audience :: Developers
-    Environment :: Win32 (MS Windows)
-    Programming Language :: Python :: 3
-    Topic :: Software Development
-    Topic :: System :: Installation/Setup
-    Topic :: System :: Software Distribution
-
-[scripts]
-pynsist=nsist:main

pyproject.toml

@@ -0,0 +1,32 @@
+[build-system]
+requires = ["flit"]
+build-backend = "flit.buildapi"
+
+[tool.flit.metadata]
+module = "nsist"
+author = "Thomas Kluyver"
+author-email = "thomas@kluyver.me.uk"
+dist-name = "pynsist"
+home-page = "https://pynsist.readthedocs.io/en/latest/"
+description-file = "README.rst"
+requires-python = ">=3.5"
+requires = [
+    "requests",
+    "requests_download",
+    "jinja2",
+    "yarg",
+    "win_cli_launchers"
+]
+dev-requires = ["testpath"]
+classifiers = [
+    "License :: OSI Approved :: MIT License",
+    "Intended Audience :: Developers",
+    "Environment :: Win32 (MS Windows)",
+    "Programming Language :: Python :: 3",
+    "Topic :: Software Development",
+    "Topic :: System :: Installation/Setup",
+    "Topic :: System :: Software Distribution",
+]
+
+[tool.flit.scripts]
+pynsist = "nsist:main"