diff --git a/stdlib/3/fileinput.pyi b/stdlib/3/fileinput.pyi
new file mode 100644
index 000000000..9be8d7133
--- /dev/null
+++ b/stdlib/3/fileinput.pyi
@@ -0,0 +1,49 @@
+from typing import Iterable, BinaryIO
+
+__all__ = ...   # type: List[str]
+_state  = ...   # type: None
+
+def input(
+    files               = None, 
+    inplace:    bool    = ...,
+    backup:     str     = ...,
+    bufsize:    int     = ..., 
+    mode:       str     = ...,
+    openhook            = None): ...
+
+def close()         -> None : ...
+def nextfile()      -> None : ...
+def filename()      -> str  : ...
+def lineno()        -> int  : ...
+def isfirstline()   -> bool : ...
+def isstdin()       -> bool : ...
+
+class FileInput(Iterable):
+    def __init__(
+        self,
+        files               = None,
+        inplace:    bool    = ...,
+        backup:     str     = ...,
+        bufsize:    int     = ...,
+        mode:       str     = ...,
+        openhook            = None) -> None : ...
+
+
+    def __del__(self)                           -> None : ...
+    def close(self)                             -> None : ...
+    def __enter__(self)                                 : ... #return self
+    def __exit__(self, type, value, traceback)  -> None : ...
+    def __iter__(self)                                  : ... #return self
+    def __next__(self)                          -> str  : ... #return readline()
+    def __getitem__(self, i)                    -> str  : ... #return next()
+    def nextfile(self)                          -> None : ...
+    def readline(self)                          -> str  : ...
+    def filename(self)                          -> str  : ...
+    def lineno(self)                            -> int  : ...
+    def filelineno(self)                        -> int  : ...
+    def fileno(self)                            -> int  : ...
+    def isfirstline(self)                       -> bool : ...
+    def isstdin(self)                           -> bool : ...
+
+def hook_compressed(filename: str, mode: str)   -> BinaryIO : ...
+def hook_encoded(encoding: str)                 -> BinaryIO : ...