Commit Graph

38 Commits

Author SHA1 Message Date
Serhiy Storchaka 4d9aec0220
bpo-31572: Get rid of PyObject_HasAttr() and _PyObject_HasAttrId() in the _io module. (#3726) 2018-01-16 18:34:21 +02:00
Antoine Pitrou 317def9fdb bpo-17852: Revert incorrect fix based on misunderstanding of _Py_PyAtExit() semantics (#4826) 2017-12-13 01:39:26 +01:00
Neil Schemenauer 0a1ff24acf bpo-17852: Maintain a list of BufferedWriter objects. Flush them on exit. (#3372)
* Maintain a list of BufferedWriter objects.  Flush them on exit.

In Python 3, the buffer and the underlying file object are separate
and so the order in which objects are finalized matters.  This is
unlike Python 2 where the file and buffer were a single object and
finalization was done for both at the same time.  In Python 3, if
the file is finalized and closed before the buffer then the data in
the buffer is lost.

This change adds a doubly linked list of open file buffers.  An atexit
hook ensures they are flushed before proceeding with interpreter
shutdown.  This is addition does not remove the need to properly close
files as there are other reasons why buffered data could get lost during
finalization.

Initial patch by Armin Rigo.

* Use weakref.WeakSet instead of WeakKeyDictionary.

* Simplify buffered double-linked list types.

* In _flush_all_writers(), suppress errors from flush().

* Remove NEWS entry, use blurb.

* Take more care when flushing file buffers from atexit.

The previous implementation was not careful enough to avoid
causing issues in multi-threaded cases.  Check for buf->ok
and buf->finalizing before actually doing the flush.  Also,
increase the refcnt to ensure the object does not disappear.
2017-09-22 10:17:30 -07:00
Neil Schemenauer db564238db Revert "bpo-17852: Maintain a list of BufferedWriter objects. Flush them on exit. (#1908)" (#3337)
This reverts commit e38d12ed34.
2017-09-04 22:13:17 -07:00
Neil Schemenauer e38d12ed34 bpo-17852: Maintain a list of BufferedWriter objects. Flush them on exit. (#1908)
* Maintain a list of BufferedWriter objects.  Flush them on exit.

In Python 3, the buffer and the underlying file object are separate
and so the order in which objects are finalized matters.  This is
unlike Python 2 where the file and buffer were a single object and
finalization was done for both at the same time.  In Python 3, if
the file is finalized and closed before the buffer then the data in
the buffer is lost.

This change adds a doubly linked list of open file buffers.  An atexit
hook ensures they are flushed before proceeding with interpreter
shutdown.  This is addition does not remove the need to properly close
files as there are other reasons why buffered data could get lost during
finalization.

Initial patch by Armin Rigo.

* Use weakref.WeakSet instead of WeakKeyDictionary.

* Simplify buffered double-linked list types.

* In _flush_all_writers(), suppress errors from flush().

* Remove NEWS entry, use blurb.
2017-09-04 20:18:38 -07:00
Serhiy Storchaka 55fe1ae970 bpo-30022: Get rid of using EnvironmentError and IOError (except test… (#1051) 2017-04-16 10:46:38 +03:00
Serhiy Storchaka 762bf40438 bpo-29852: Argument Clinic Py_ssize_t converter now supports None (#716)
if pass `accept={int, NoneType}`.
2017-03-30 09:15:31 +03:00
Serhiy Storchaka ba85d69a3e bpo-29878: Add global instances of int for 0 and 1. (#852) 2017-03-30 09:09:41 +03:00
Steve Dower 312cef7452 Issue #28217: Adds _testconsole module to test console input. Fixes some issues found by the tests. 2016-10-03 09:04:58 -07:00
Christian Heimes 9df89d06a0 Issue #28277: remove linefeed character from iomodule.h. Patch by Michael Felt 2016-09-26 14:08:47 +02:00
Steve Dower 3929499914 Issue #1602: Windows console doesn't input or print Unicode (PEP 528)
Closes #17602: Adds a readline implementation for the Windows console
2016-08-30 21:22:36 -07:00
Benjamin Peterson 47ff0734b8 more PY_LONG_LONG to long long 2016-09-08 09:15:54 -07:00
Benjamin Peterson ed4aa83ff7 require a long long data type (closes #27961) 2016-09-05 17:44:18 -07:00
Serhiy Storchaka ef1585eb9a Issue #25923: Added more const qualifiers to signatures of static and private functions. 2015-12-25 20:01:53 +02:00
Martin Panter 994815e1d7 Issue #22413: Merge StringIO doc from 3.4 into 3.5 2015-10-10 10:15:21 +00:00
Martin Panter cfad54344f Issue #22413: Document newline effect on StringIO initializer and getvalue
Also add to comment in the C code.
2015-10-10 03:01:20 +00:00
Serhiy Storchaka 483405bcca Issue #22883: Got rid of outdated references to PyInt and PyString in comments. 2015-02-17 10:14:30 +02:00
Antoine Pitrou 712cb734bd Issue #20037: Avoid crashes when doing text I/O late at interpreter shutdown. 2013-12-21 15:51:54 +01:00
Antoine Pitrou 932ff83682 Issue #18608: Avoid keeping a strong reference to the locale module inside the _io module. 2013-08-01 21:04:50 +02:00
Victor Stinner 14b9b11098 If MS_WIN64 is defined, MS_WINDOWS is also defined: #ifdef can be simplified. 2013-06-25 00:37:25 +02:00
Gregory P. Smith 990a5feba7 Fixes issue #12268: File readline, readlines and read() or readall() methods
no longer lose data when an underlying read system call is interrupted.
IOError is no longer raised due to a read system call returning EINTR
from within these methods.
2012-06-24 00:23:47 -07:00
Gregory P. Smith 5135992164 Fixes issue #12268: File readline, readlines and read() or readall() methods
no longer lose data when an underlying read system call is interrupted.
IOError is no longer raised due to a read system call returning EINTR
from within these methods.
2012-06-23 23:55:39 -07:00
Antoine Pitrou 6211b88161 Issue #14437: Fix building the _io module under Cygwin. 2012-03-31 23:50:31 +02:00
Brett Cannon efb00c0cc1 Issue #14153 Create _Py_device_encoding() to prevent _io from having to import
the os module.
2012-02-29 18:31:31 -05:00
Antoine Pitrou 6b4883dec0 PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy. 2011-10-12 02:54:14 +02:00
Martin v. Löwis d63a3b8beb Implement PEP 393. 2011-09-28 07:41:54 +02:00
Victor Stinner b57f108b03 Issue #12175: BufferedReader.read(-1) now calls raw.readall() if available. 2011-05-26 00:19:38 +02:00
Antoine Pitrou 972ee13e03 Issue #5506: BytesIO objects now have a getbuffer() method exporting a
view of their contents without duplicating them.  The view is both readable
and writable.
2010-09-06 18:48:21 +00:00
Benjamin Peterson bf5ff76597 Merged revisions 76805 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76805 | benjamin.peterson | 2009-12-13 13:19:07 -0600 (Sun, 13 Dec 2009) | 7 lines

  accept None as the same as having passed no argument in file types #7349

  This is for consistency with imitation file objects like StringIO and BytesIO.

  This commit also adds a few tests, where they were lacking for concerned
  methods.
........
2009-12-13 19:25:34 +00:00
Mark Dickinson 1a0aaaabb6 Merged revisions 76502 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76502 | mark.dickinson | 2009-11-24 20:51:48 +0000 (Tue, 24 Nov 2009) | 3 lines

  Issue #7228:  Fix format mismatch when printing something of type off_t.
  (Should silence some compiler warnings.)
........
2009-11-24 20:54:11 +00:00
Mark Dickinson cb9285cd37 Merged revisions 75939 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75939 | mark.dickinson | 2009-10-29 09:46:04 +0000 (Thu, 29 Oct 2009) | 5 lines

  Roll back ill-considered attempts to fix printf specifier mismatch for off_t.
  The sensible solution seems to be to implement %lld for PyString_FromFormat(V)
  and PyErr_Format.  See issue #7228.
........
2009-10-29 09:58:06 +00:00
Mark Dickinson 60874b01f3 Merged revisions 75909 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75909 | mark.dickinson | 2009-10-28 07:47:32 +0000 (Wed, 28 Oct 2009) | 1 line

  Fix format specifier for MSVC
........
2009-10-28 07:49:26 +00:00
Mark Dickinson d4aea7116a Merged revisions 75905 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75905 | mark.dickinson | 2009-10-28 07:23:49 +0000 (Wed, 28 Oct 2009) | 1 line

  Replace long long with PY_LONG_LONG
........
2009-10-28 07:25:03 +00:00
Mark Dickinson d430ebe1fd Merged revisions 75879 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75879 | mark.dickinson | 2009-10-27 21:48:20 +0000 (Tue, 27 Oct 2009) | 3 lines

  Silence gcc warnings when trying to print an off_t using "lld", on platforms
  where off_t has type long (e.g., 64-bit Linux).
........
2009-10-27 21:49:48 +00:00
Mark Dickinson 238b1098ca Merged revisions 75728 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75728 | mark.dickinson | 2009-10-26 19:59:23 +0000 (Mon, 26 Oct 2009) | 3 lines

  Use correct conversion specifier and length modifier when printing an
  integer of type off_t.  Also, don't assume that long long is available.
........
2009-10-26 20:02:55 +00:00
Benjamin Peterson 680bf1afe8 move to a naming scheme with all lowercase and underscores 2009-06-12 02:07:12 +00:00
Antoine Pitrou e450185b4a Issue #5006: Better handling of unicode byte-order marks (BOM) in the io library.
This means, for example, that opening an UTF-16 text file in
append mode doesn't add a BOM at the end of the file if the file isn't
empty.
2009-05-14 18:55:55 +00:00
Alexandre Vassalotti 8d8d630003 Issue 5682: Move _io module into its own subdirectory.
Reviewed by: Antoine Pitrou
2009-04-04 19:58:40 +00:00