http://hg.python.org/cpython/rev/e7d545a5f6bc changeset: 76674:e7d545a5f6bc parent: 76671:6e541ed4e987 parent: 76673:5c801899cd6d user: Ned Deily <nad@acm.org> date: Mon Apr 30 11:15:38 2012 -0700 summary: Issue #10433: merge files: Doc/library/os.rst | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-) diff --git a/Doc/library/os.rst b/Doc/library/os.rst --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -238,6 +238,20 @@ Availability: Unix. + .. note:: On Mac OS X, :func:`getgroups` behavior differs somewhat from + other Unix platforms. If the Python interpreter was built with a + deployment target of :const:`10.5` or earlier, :func:`getgroups` returns + the list of effective group ids associated with the current user process; + this list is limited to a system-defined number of entries, typically 16, + and may be modified by calls to :func:`setgroups` if suitably privileged. + If built with a deployment target greater than :const:`10.5`, + :func:`getgroups` returns the current group access list for the user + associated with the effective user id of the process; the group access + list may change over the lifetime of the process, it is not affected by + calls to :func:`setgroups`, and its length is not limited to 16. The + deployment target value, :const:`MACOSX_DEPLOYMENT_TARGET`, can be + obtained with :func:`sysconfig.get_config_var`. + .. function:: initgroups(username, gid) @@ -425,6 +439,10 @@ Availability: Unix. + .. note:: On Mac OS X, the length of *groups* may not exceed the + system-defined maximum number of effective group ids, typically 16. + See the documentation for :func:`getgroups` for cases where it may not + return the same group list set by calling setgroups(). .. function:: setpgrp() -- Repository URL: http://hg.python.org/cpython