Fix failing flake8 tests

.github/workflows/libsec.yml

@@ -46,7 +46,7 @@ jobs:
         flake8 . --count --statistics
     - name: Lint with black
       run: |
-        black . --diff --check
+        black . --diff --check --exclude='tests_wycheproof_generate.py'
     - name: pytest CLI singlesig
       run: |
         # We retry these 3x if needed, which is a disgusting hack but GH is really buggy for CLI apps

setup.cfg

@@ -1,4 +1,4 @@
 [flake8]
 ignore=E125,E203,E226,E501,W503
-exclude=pbkdf2.py,siphash.py,__init__.py,*/lib/*,*.venv3/*
+exclude=pbkdf2.py,siphash.py,__init__.py,*/lib/*,*.venv3/*,tests_wycheproof_generate.py
 max-line-length=127