pypi i multiprocessing


Backport of the multiprocessing package to Python 2.4 and 2.5

by Christian Heimes (see all)License:BSD LicenceCategories:Vanilla Python Standard Library
pypi i multiprocessing




multiprocessing is a back port of the Python 2.6/3.0 multiprocessing <> package. The multiprocessing package itself is a renamed and updated version of R Oudkerk's pyprocessing <> package. This standalone variant is intended to be compatible with Python 2.4 and 2.5, and will draw it's fixes/improvements from python-trunk.

This package would not be possible if not for the contributions of not only the current maintainers but all of the contributors to the original pyprocessing package listed here <>_

The multiprocessing package monkey patches several aspects of the threading module to make it forward compatible with Python 2.6. The patches are non-intrusive and don't change existing functions. See multiprocessing.patch for detailed informations.

Please refer to <>_ for more information about the multiprocessing package.

Bug reporting

Please report bugs related to multiprocessing at the Python bug tracker <>. Issues related to the packaging of multiprocessing should be reported at <>.


Changes -- 2009-07-30

  • Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was unconditionally calling "os.close(sys.stdin.fileno())" resulting in file descriptor errors

  • Issue #5400: Added patch for multiprocessing on netbsd compilation/support

  • Fix and properly document the multiprocessing module's logging support, expose the internal levels and provide proper usage examples.

  • Issue #5261: Patch multiprocessing's semaphore.c to support context manager use: "with multiprocessing.Lock()" works now.

  • Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks for *nix machines for negative handles and large int handles. Without this check it is possible to segfault the interpreter.

  • Issue #4301: Patch the logging module to add processName support, remove _check_logger_class from multiprocessing. -- 2009-02-07

  • Fixed an issue with make doc

  • mp docs - fix issues 4012,3518,4193 (Python svn: r67419)

  • issue4238: bsd support for cpu_count (Python svn: r67423)

  • Move definition int sval into branch of ifdef where it is used. Otherwise, you get a warning about an undefined variable. (Python svn: r67440)

  • Fixed a segfault in connection_recvbytes_into() which occured with Python debug builds on 64bit Linux.

  • Added reference to Issue 1683

  • issue 4301: patch logging to add processName, remove the old _check_logger_class code (Python svn: r68737)

  • Resolve issue 3321: (segfault) _multiprocessing.Connection() doesn't check handle (Python svn: r68768)

  • Documentation update -- 2008-11-27

The release is based on 2.6.0+ and contains additional fixes from Python svn.

  • Issue #5: Added monkey patch to make the threading module forward compatible with Python 2.6 and 3.0.

  • Python Issue #4204: Fixed a compilation issue on FreeBSD 4.

  • Removed install target from Makefile.

  • Updated comments of Modules/mmapmodules.c. The modifications and origin are clearly marked now.

  • Added sphinx builder for docs and new make target docs.

  • Changed version schema to Python.version.number.internal_revision

  • Pulled doc fixes from Python svn: r67189, r67330, r67332

2.6.0-0.1 -- 2008-10-27

The release is based on Python 2.6.0.

  • Initial release

GitHub Stars

No data available


NaNyrs ago








No data available
13yrs ago
13yrs ago
13yrs ago
14yrs ago
No tutorials found
Add a tutorial