cap13: revisão de estilo

Author: ramalho

code/13-protocol-abc/typing/vector2d_v4.py

@@ -167,6 +167,6 @@ def __complex__(self):
         return complex(self.x, self.y)
 
     @classmethod
-    def fromcomplex(cls, datum):
-        return cls(datum.real, datum.imag)  # <1>
+    def fromcomplex(cls, n):
+        return cls(n.real, n.imag)  # <1>
 # end::VECTOR2D_V4_COMPLEX[]

code/13-protocol-abc/typing/vector2d_v5.py

@@ -168,7 +168,7 @@ def __complex__(self) -> complex:  # <2>
         return complex(self.x, self.y)
 
     @classmethod
-    def fromcomplex(cls, datum: SupportsComplex) -> Vector2d:  # <3>
-        c = complex(datum)  # <4>
+    def fromcomplex(cls, n: complex | SupportsComplex) -> Vector2d:  # <3>
+        c = complex(n)  # <4>
         return cls(c.real, c.imag)
 # end::VECTOR2D_V5_COMPLEX[]