Add pickle5 to the dev requirements

jakirkham · jakirkham · commit 4e66e3995bcf · 2020-05-21T14:14:04.000-07:00
diff --git a/dev-requirements.txt b/dev-requirements.txt
@@ -3,6 +3,8 @@ flake8
 pytest
 pytest-cov
 psutil
+# To test on older Python versions
+pickle5 >=0.0.10 ; python_version >= '3.6' and python_version <= '3.7'
 # To be able to test tornado coroutines
 tornado
 # To be able to test numpy specific things
