diff --git a/stdlib/2/urllib.pyi b/stdlib/2/urllib.pyi
index fde604f29..12836231c 100644
--- a/stdlib/2/urllib.pyi
+++ b/stdlib/2/urllib.pyi
@@ -1,4 +1,4 @@
-from typing import Any, AnyStr, IO, Mapping, Sequence, Text, Tuple, Union
+from typing import Any, AnyStr, IO, List, Mapping, Sequence, Text, Tuple, TypeVar, Union
 
 def url2pathname(pathname: str) -> str: ...
 def pathname2url(pathname: str) -> str: ...
@@ -77,16 +77,18 @@ class ftpwrapper:
     def file_close(self): ...
     def real_close(self): ...
 
+_AIUT = TypeVar("_AIUT", bound=addbase)
+
 class addbase:
     fp = ...  # type: Any
-    read = ...  # type: Any
-    readline = ...  # type: Any
-    readlines = ...  # type: Any
-    fileno = ...  # type: Any
-    __iter__ = ...  # type: Any
-    next = ...  # type: Any
+    def read(self, n: int = ...) -> bytes: ...
+    def readline(self, limit: int = ...) -> bytes: ...
+    def readlines(self, hint: int = ...) -> List[bytes]: ...
+    def fileno(self) -> int: ...  # Optional[int], but that is rare
+    def __iter__(self: _AIUT) -> _AIUT: ...
+    def next(self) -> bytes: ...
     def __init__(self, fp) -> None: ...
-    def close(self): ...
+    def close(self) -> None: ...
 
 class addclosehook(addbase):
     closehook = ...  # type: Any