add-black (#1593)

* Add black

Update pre commit

Update pre commit

add empty line

* Format with black

setup.cfg

@@ -17,6 +17,45 @@ Topic :: Home Automation
 
 [flake8]
 max-line-length = 120
+# Following 4 for black compatibility
+# E501: line too long
+# W503: Line break occurred before a binary operator
+# E203: Whitespace before ':'
+# D202 No blank lines allowed after function docstring
+
+# TODO fix flake8
+# D100 Missing docstring in public module
+# D101 Missing docstring in public class
+# D102 Missing docstring in public method
+# D103 Missing docstring in public function
+# D104 Missing docstring in public package
+# D105 Missing docstring in magic method
+# D107 Missing docstring in __init__
+# D200 One-line docstring should fit on one line with quotes
+# D205 1 blank line required between summary line and description
+# D209 Multi-line docstring closing quotes should be on a separate line
+# D400 First line should end with a period
+# D401 First line should be in imperative mood
+
+ignore =
+    E501,
+    W503,
+    E203,
+    D202,
+
+    D100,
+    D101,
+    D102,
+    D103,
+    D104,
+    D105,
+    D107,
+    D200,
+    D205,
+    D209,
+    D400,
+    D401,
+
 exclude = api_pb2.py
 
 [bdist_wheel]