CI: Bump black (#19)

Author: adrien-berchet

data_validation_framework/report.py

@@ -78,7 +78,7 @@ def build_subtree(node, deps, known_nodes=None):
         if t not in known_nodes:
             subtree[t] = {}
             known_nodes.add(t)
-    for t in subtree:
+    for t in subtree.keys():  # pylint: disable=consider-iterating-dictionary
         subtree[t] = build_subtree(t, deps, known_nodes)
     return subtree
 

tox.ini

@@ -41,12 +41,13 @@ commands =
 [testenv:lint]
 basepython = python3.8
 deps =
-    black==21.4b2
+    black
     codespell
     isort
     pycodestyle
     pydocstyle
     pylint
+    toml
 commands =
     codespell {[base]files}
     pycodestyle {[base]files}
@@ -59,7 +60,7 @@ commands =
 basepython = python3.8
 skip_install = true
 deps =
-    black==21.4b2
+    black
     codespell
     isort
 commands =