Add dataclasses backport for Python 3.6.

agharwal · agharwal · commit 21ee6040b872 · 2021-04-17T01:36:47.000Z
diff --git a/setup.py b/setup.py
@@ -48,6 +48,7 @@
     },
     python_requires='>=3.6',
     install_requires=[
+        'dataclasses; python_version=="3.6"',
         'pydicom>=2.0',
         'requests>=2.18',
         'retrying>=1.3.3',
