Update py files formats according to flake8

Author: fungss

funcs/__init__.py

@@ -1 +1,2 @@
-# placeholder file to modularize (to package) .py files under the directory "funcs", making the files importable.
+# placeholder file to modularize (to package) .py files
+# under the directory "funcs", making the files importable.

funcs/func.py

@@ -1,7 +1,12 @@
 def sum(x: float, y: float) -> float:
     return x + y
 
-def misformatted_func(
-var1, var2, var3
-):
+
+# def misformatted_func(
+# var1, var2, var3
+# ):
+#     print(var1, var2, var3)
+
+
+def corr_formatted_func(var1, var2, var3):
     print(var1, var2, var3)

tests/__init__.py

@@ -1 +1,2 @@
-# placeholder file to modularize (to package) .py files under the directory "tests", making the files importable.
+# placeholder file to modularize (to package) .py files
+# under the directory "tests", making the files importable.

tests/test_func.py

@@ -7,10 +7,16 @@ class Test(unittest.TestCase):
     def test_sum(self):
         self.assertEqual(func.sum(2,3), 5)
 
-    @patch('funcs.func.misformatted_func')
-    def test_misformatted_func(self, mock_misformatted_func):
-        func.misformatted_func("one", "two", "three")
-        mock_misformatted_func.assert_called_with("one", "two", "three")
+    # Any misformatted functions would not pass flake8 format checks. All related tests would not be executed.
+    # @patch('funcs.func.misformatted_func')
+    # def test_misformatted_func(self, mock_misformatted_func):
+    #     func.misformatted_func("one", "two", "three")
+    #     mock_misformatted_func.assert_called_with("one", "two", "three")
+
+    @patch('funcs.func.corr_formatted_func')
+    def test_corr_formatted_func(self, mock_corr_formatted_func):
+        func.corr_formatted_func("one", "two", "three")
+        mock_corr_formatted_func.assert_called_with("one", "two", "three")
 
 if __name__ == "__main__":
     unittest.main()