Merge pull request #2553 from plotly/issue-2552

nicolaskruchten · web-flow · commit d1914585bfe7 · 2020-06-10T09:27:58.000-04:00
Issue 2552
diff --git a/packages/python/plotly/optional-requirements.txt b/packages/python/plotly/optional-requirements.txt
@@ -25,6 +25,7 @@ psutil
 
 ## code formatting
 pre-commit
+black
 
 ## codegen dependencies ##
 inflect
