From c4ee2ed36a73104b8a1413a0c698aa8084eff912 Mon Sep 17 00:00:00 2001
From: Anthony Sottile <asottile@umich.edu>
Date: Tue, 12 Jun 2018 15:45:11 -0700
Subject: [PATCH] Correct annotation for `fileinput.input` (#2223)

```python
import fileinput

with fileinput.input(files=('foo.txt',), inplace=True, backup='') as f:
    for line in f:
        print(f'prefix{line}', end='')
```

```
$ mypy test2.py
test2.py:3: error: "Iterable[str]" has no attribute "__enter__"; maybe "__iter__"?
test2.py:3: error: "Iterable[str]" has no attribute "__exit__"
```

```
$ mypy test2.py --custom-typeshed typeshed
$
```
---
 stdlib/2and3/fileinput.pyi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stdlib/2and3/fileinput.pyi b/stdlib/2and3/fileinput.pyi
index 8a56ecaf6..0eb8ca9d8 100644
--- a/stdlib/2and3/fileinput.pyi
+++ b/stdlib/2and3/fileinput.pyi
@@ -15,7 +15,7 @@ def input(
     backup: str = ...,
     bufsize: int = ...,
     mode: str = ...,
-    openhook: Callable[[_Path, str], IO[AnyStr]] = ...) -> Iterable[AnyStr]: ...
+    openhook: Callable[[_Path, str], IO[AnyStr]] = ...) -> FileInput[AnyStr]: ...
 
 
 def close() -> None: ...