BF: Add dataclasses backport for 3.6

moloney · effigies · web-flow · commit 8946f163e5b9 · 2021-07-12T12:24:38.000-07:00
Co-authored-by: Chris Markiewicz &lt;effigies@gmail.com&gt;
diff --git a/setup.cfg b/setup.cfg
@@ -32,6 +32,7 @@ install_requires =
     numpy >=1.13
     packaging >=14.3
     bitarray
+    dataclasses ; python_version < "3.7"
 zip_safe = False
 packages = find:
 
