Add pre-commit hook for Black

TheGreatCabbage · TheGreatCabbage · commit 8a93cefabb91 · 2020-02-25T12:18:26.000Z
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
@@ -0,0 +1,7 @@
+repos:
+# Black formats the Python code.
+-   repo: https://github.com/psf/black
+    rev: stable
+    hooks:
+    - id: black
+      language_version: python3.8
