(Merge 3.1) Issue #12175: FileIO.readall() now raises a ValueError instead of
an IOError if the file is closed.
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py
index dac30cb..a286c12 100644
--- a/Lib/test/test_io.py
+++ b/Lib/test/test_io.py
@@ -2505,6 +2505,8 @@
self.assertRaises(ValueError, f.read)
if hasattr(f, "read1"):
self.assertRaises(ValueError, f.read1, 1024)
+ if hasattr(f, "readall"):
+ self.assertRaises(ValueError, f.readall)
if hasattr(f, "readinto"):
self.assertRaises(ValueError, f.readinto, bytearray(1024))
self.assertRaises(ValueError, f.readline)
diff --git a/Misc/NEWS b/Misc/NEWS
index 8d19f7a..05fc1b7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -731,6 +731,9 @@
Library
-------
+- Issue #12175: FileIO.readall() now raises a ValueError instead of an IOError
+ if the file is closed.
+
- Issue #10916: mmap should not segfault when a file is mapped using 0 as length
and a non-zero offset, and an attempt to read past the end of file is made
(IndexError is raised instead). Patch by Ross Lagerwall.
diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index 1aa5ee9..141b6de 100644
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -583,6 +583,8 @@
Py_ssize_t total = 0;
int n;
+ if (self->fd < 0)
+ return err_closed();
if (!_PyVerify_fd(self->fd))
return PyErr_SetFromErrno(PyExc_IOError);