Adds back setup file.

pyproject.toml

@@ -2,9 +2,6 @@
 requires = ["setuptools>=64", "setuptools_scm>=8"]
 build-backend = "setuptools.build_meta"
 
-[project]
-dynamic = ["version"]
-
 [tool.setuptools_scm]
 write_to = "afqinsight/_version.py"
 

setup.py

@@ -0,0 +1,32 @@
+import os.path as op
+import string
+
+from setuptools import setup
+from setuptools_scm import get_version
+
+
+def local_version(version):
+    """Patch in a version that can be uploaded to test PyPI."""
+    scm_version = get_version()
+    if "dev" in scm_version:
+        gh_in_int = []
+        for char in version.node:
+            if char.isdigit():
+                gh_in_int.append(str(char))
+            else:
+                gh_in_int.append(str(string.ascii_letters.find(char)))
+        return "".join(gh_in_int)
+    else:
+        return ""
+
+
+opts = {
+    "use_scm_version": {
+        "write_to": op.join("afqinsight", "_version.py"),
+        "local_scheme": local_version,
+    }
+}
+
+
+if __name__ == "__main__":
+    setup(**opts)