MNT: flake8: ignore = F824, W503, W504

Author: kernc

setup.cfg

@@ -1,5 +1,9 @@
 [flake8]
 max-line-length = 120
+# F824 `nonlocal x` is unused: name is never assigned in scope
+# W503 Line break before a binary operator
+# W504 Line break after a binary operator -- https://www.flake8rules.com/rules/W504.html
+ignore = F824, W503, W504
 
 [mypy]
 warn_unused_ignores = True