added bytes conversion

CHANGES/582.feature

@@ -0,0 +1 @@
+Add `__bytes__()` magic method so that `bytes(url)` will work and use optimal ASCII encoding.

setup.cfg

@@ -30,3 +30,5 @@ ignore_missing_imports = true
 [mypy-pytest]
 ignore_missing_imports = true
 
+[mypy-multidict]
+ignore_missing_imports = true

setup.py

@@ -73,7 +73,7 @@ def read(name):
 
 if not NO_EXTENSIONS:
     print("**********************")
-    print("* Accellerated build *")
+    print("* Accelerated build *")
     print("**********************")
     setup(ext_modules=extensions, **args)
 else:

tests/test_url.py

@@ -15,7 +15,7 @@ class MyURL(URL):  # type: ignore[misc]
             pass
 
     assert (
-        "Inheritance a class "
+        "Inheriting a class "
         "<class 'test_url.test_inheritance.<locals>.MyURL'> "
         "from URL is forbidden" == str(ctx.value)
     )
@@ -1025,6 +1025,14 @@ def test_from_non_ascii_path():
     ) == str(url)
 
 
+def test_bytes():
+    url = URL("http://example.com/путь/туда")
+    assert (
+        b"http://example.com/%D0%BF%D1%83%D1%82%D1%8C/%D1%82%D1%83%D0%B4%D0%B0"
+        == bytes(url)
+    )
+
+
 def test_from_ascii_query_parts():
     url = URL(
         "http://example.com/"
@@ -1223,7 +1231,7 @@ def test_join_from_rfc_3986_normal(url, expected):
 
 
 @pytest.mark.skipif(
-    sys.version_info < (3, 5), reason="Python 3.4 doen't support abnormal cases"
+    sys.version_info < (3, 5), reason="Python 3.4 doesn't support abnormal cases"
 )
 @pytest.mark.parametrize("url,expected", ABNORMAL)
 def test_join_from_rfc_3986_abnormal(url, expected):

yarl/_url.py

@@ -261,7 +261,7 @@ def build(
             return url
 
     def __init_subclass__(cls):
-        raise TypeError("Inheritance a class {!r} from URL is forbidden".format(cls))
+        raise TypeError("Inheriting a class {!r} from URL is forbidden".format(cls))
 
     def __str__(self):
         val = self._val
@@ -272,6 +272,9 @@ def __str__(self):
     def __repr__(self):
         return "{}('{}')".format(self.__class__.__name__, str(self))
 
+    def __bytes__(self):
+        return str(self).encode("ascii")
+
     def __eq__(self, other):
         if not type(other) is URL:
             return NotImplemented