Add dataclasses as requirement for py3.6

aseyboldt · aseyboldt · commit 92e0dd2b47b8 · 2020-07-02T17:22:01.000+02:00
diff --git a/requirements.txt b/requirements.txt
@@ -7,4 +7,5 @@ patsy>=0.5.1
 fastprogress>=0.2.0
 h5py>=2.7.0
 typing-extensions>=3.7.4
+dataclasses
 contextvars; python_version < '3.7'
