fixed bug in Maybe.value

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pwo"
-version = "0.0.2"
+version = "0.0.3"
 authors = [
   { name="Walter Oggioni", email="oggioni.walter@gmail.com" },
 ]

src/pwo/maybe.py

@@ -24,11 +24,10 @@ class Maybe(Generic[T]):
 
     @property
     def value(self) -> T:
-        value = self._value
-        if not value:
+        if self.is_empty:
             raise ValueError('Empty Maybe')
         else:
-            return value
+            return self._value
 
     @property
     def is_present(self) -> bool: