[pkg] remove osx pkg folder

3 files changed, 0 insertions, 949 deletions

diff --git a/pkg/osx/daemon/LICENSE b/pkg/osx/daemon/LICENSE
deleted file mode 100644
index 5e2e41b1..00000000
--- a/pkg/osx/daemon/LICENSE
+++ /dev/null
@@ -1,15 +0,0 @@
-Copying
-=======
-
-This work, ‘python-daemon’, is free software: you may copy, modify,
-and/or distribute this work under certain conditions; see the relevant
-files for specific grant of license. No warranty expressed or implied.
-
-* Parts of this work are licensed to you under the terms of the GNU
-General Public License as published by the Free Software Foundation;
-version 3 of that license or any later version.
-See the file ‘LICENSE.GPL-3’ for details.
-
-* Parts of this work are licensed to you under the terms of the Apache
-License, version 2.0 as published by the Apache Software Foundation.
-See the file ‘LICENSE.ASF-2’ for details.
diff --git a/pkg/osx/daemon/_metadata.py b/pkg/osx/daemon/_metadata.py
deleted file mode 100644
index 24524bb0..00000000
--- a/pkg/osx/daemon/_metadata.py
+++ /dev/null
@@ -1,7 +0,0 @@
-author_name = "Ben Finney"
-author_email = "ben+python@benfinney.id.au"
-year_range = "2001-2017"
-copyright = "Copyright © {year_range} {author} and others".format(
-    year_range=copyright_year_range, author=author)
-license = "Apache-2"
-url = "https://alioth.debian.org/projects/python-daemon/"
diff --git a/pkg/osx/daemon/daemon.py b/pkg/osx/daemon/daemon.py
deleted file mode 100644
index 7ca8770e..00000000
--- a/pkg/osx/daemon/daemon.py
+++ /dev/null
@@ -1,927 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# daemon/daemon.py
-# Part of ‘python-daemon’, an implementation of PEP 3143.
-#
-# Copyright © 2008–2015 Ben Finney <ben+python@benfinney.id.au>
-# Copyright © 2007–2008 Robert Niederreiter, Jens Klein
-# Copyright © 2004–2005 Chad J. Schroeder
-# Copyright © 2003 Clark Evans
-# Copyright © 2002 Noah Spurrier
-# Copyright © 2001 Jürgen Hermann
-#
-# This is free software: you may copy, modify, and/or distribute this work
-# under the terms of the Apache License, version 2.0 as published by the
-# Apache Software Foundation.
-# No warranty expressed or implied. See the file ‘LICENSE.ASF-2’ for details.
-
-""" Daemon process behaviour.
-    """
-
-from __future__ import (absolute_import, unicode_literals)
-
-import os
-import sys
-import resource
-import errno
-import signal
-import socket
-import atexit
-try:
-    # Python 2 has both ‘str’ (bytes) and ‘unicode’ (text).
-    basestring = basestring
-    unicode = unicode
-except NameError:
-    # Python 3 names the Unicode data type ‘str’.
-    basestring = str
-    unicode = str
-
-
-class DaemonError(Exception):
-    """ Base exception class for errors from this module. """
-
-    def __init__(self, *args, **kwargs):
-        self._chain_from_context()
-
-        super(DaemonError, self).__init__(*args, **kwargs)
-
-    def _chain_from_context(self):
-        _chain_exception_from_existing_exception_context(self, as_cause=True)
-
-
-class DaemonOSEnvironmentError(DaemonError, OSError):
-    """ Exception raised when daemon OS environment setup receives error. """
-
-
-class DaemonProcessDetachError(DaemonError, OSError):
-    """ Exception raised when process detach fails. """
-
-
-class DaemonContext:
-    """ Context for turning the current program into a daemon process.
-
-        A `DaemonContext` instance represents the behaviour settings and
-        process context for the program when it becomes a daemon. The
-        behaviour and environment is customised by setting options on the
-        instance, before calling the `open` method.
-
-        Each option can be passed as a keyword argument to the `DaemonContext`
-        constructor, or subsequently altered by assigning to an attribute on
-        the instance at any time prior to calling `open`. That is, for
-        options named `wibble` and `wubble`, the following invocation::
-
-            foo = daemon.DaemonContext(wibble=bar, wubble=baz)
-            foo.open()
-
-        is equivalent to::
-
-            foo = daemon.DaemonContext()
-            foo.wibble = bar
-            foo.wubble = baz
-            foo.open()
-
-        The following options are defined.
-
-        `files_preserve`
-            :Default: ``None``
-
-            List of files that should *not* be closed when starting the
-            daemon. If ``None``, all open file descriptors will be closed.
-
-            Elements of the list are file descriptors (as returned by a file
-            object's `fileno()` method) or Python `file` objects. Each
-            specifies a file that is not to be closed during daemon start.
-
-        `chroot_directory`
-            :Default: ``None``
-
-            Full path to a directory to set as the effective root directory of
-            the process. If ``None``, specifies that the root directory is not
-            to be changed.
-
-        `working_directory`
-            :Default: ``'/'``
-
-            Full path of the working directory to which the process should
-            change on daemon start.
-
-            Since a filesystem cannot be unmounted if a process has its
-            current working directory on that filesystem, this should either
-            be left at default or set to a directory that is a sensible “home
-            directory” for the daemon while it is running.
-
-        `umask`
-            :Default: ``0``
-
-            File access creation mask (“umask”) to set for the process on
-            daemon start.
-
-            A daemon should not rely on the parent process's umask value,
-            which is beyond its control and may prevent creating a file with
-            the required access mode. So when the daemon context opens, the
-            umask is set to an explicit known value.
-
-            If the conventional value of 0 is too open, consider setting a
-            value such as 0o022, 0o027, 0o077, or another specific value.
-            Otherwise, ensure the daemon creates every file with an
-            explicit access mode for the purpose.
-
-        `pidfile`
-            :Default: ``None``
-
-            Context manager for a PID lock file. When the daemon context opens
-            and closes, it enters and exits the `pidfile` context manager.
-
-        `detach_process`
-            :Default: ``None``
-
-            If ``True``, detach the process context when opening the daemon
-            context; if ``False``, do not detach.
-
-            If unspecified (``None``) during initialisation of the instance,
-            this will be set to ``True`` by default, and ``False`` only if
-            detaching the process is determined to be redundant; for example,
-            in the case when the process was started by `init`, by `initd`, or
-            by `inetd`.
-
-        `signal_map`
-            :Default: system-dependent
-
-            Mapping from operating system signals to callback actions.
-
-            The mapping is used when the daemon context opens, and determines
-            the action for each signal's signal handler:
-
-            * A value of ``None`` will ignore the signal (by setting the
-              signal action to ``signal.SIG_IGN``).
-
-            * A string value will be used as the name of an attribute on the
-              ``DaemonContext`` instance. The attribute's value will be used
-              as the action for the signal handler.
-
-            * Any other value will be used as the action for the
-              signal handler. See the ``signal.signal`` documentation
-              for details of the signal handler interface.
-
-            The default value depends on which signals are defined on the
-            running system. Each item from the list below whose signal is
-            actually defined in the ``signal`` module will appear in the
-            default map:
-
-            * ``signal.SIGTTIN``: ``None``
-
-            * ``signal.SIGTTOU``: ``None``
-
-            * ``signal.SIGTSTP``: ``None``
-
-            * ``signal.SIGTERM``: ``'terminate'``
-
-            Depending on how the program will interact with its child
-            processes, it may need to specify a signal map that
-            includes the ``signal.SIGCHLD`` signal (received when a
-            child process exits). See the specific operating system's
-            documentation for more detail on how to determine what
-            circumstances dictate the need for signal handlers.
-
-        `uid`
-            :Default: ``os.getuid()``
-
-        `gid`
-            :Default: ``os.getgid()``
-
-            The user ID (“UID”) value and group ID (“GID”) value to switch
-            the process to on daemon start.
-
-            The default values, the real UID and GID of the process, will
-            relinquish any effective privilege elevation inherited by the
-            process.
-
-        `prevent_core`
-            :Default: ``True``
-
-            If true, prevents the generation of core files, in order to avoid
-            leaking sensitive information from daemons run as `root`.
-
-        `stdin`
-            :Default: ``None``
-
-        `stdout`
-            :Default: ``None``
-
-        `stderr`
-            :Default: ``None``
-
-            Each of `stdin`, `stdout`, and `stderr` is a file-like object
-            which will be used as the new file for the standard I/O stream
-            `sys.stdin`, `sys.stdout`, and `sys.stderr` respectively. The file
-            should therefore be open, with a minimum of mode 'r' in the case
-            of `stdin`, and mimimum of mode 'w+' in the case of `stdout` and
-            `stderr`.
-
-            If the object has a `fileno()` method that returns a file
-            descriptor, the corresponding file will be excluded from being
-            closed during daemon start (that is, it will be treated as though
-            it were listed in `files_preserve`).
-
-            If ``None``, the corresponding system stream is re-bound to the
-            file named by `os.devnull`.
-
-        """
-
-    __metaclass__ = type
-
-    def __init__(
-            self,
-            chroot_directory=None,
-            working_directory="/",
-            umask=0,
-            uid=None,
-            gid=None,
-            prevent_core=True,
-            detach_process=None,
-            files_preserve=None,
-            pidfile=None,
-            stdin=None,
-            stdout=None,
-            stderr=None,
-            signal_map=None,
-    ):
-        """ Set up a new instance. """
-        self.chroot_directory = chroot_directory
-        self.working_directory = working_directory
-        self.umask = umask
-        self.prevent_core = prevent_core
-        self.files_preserve = files_preserve
-        self.pidfile = pidfile
-        self.stdin = stdin
-        self.stdout = stdout
-        self.stderr = stderr
-
-        if uid is None:
-            uid = os.getuid()
-        self.uid = uid
-        if gid is None:
-            gid = os.getgid()
-        self.gid = gid
-
-        if detach_process is None:
-            detach_process = is_detach_process_context_required()
-        self.detach_process = detach_process
-
-        if signal_map is None:
-            signal_map = make_default_signal_map()
-        self.signal_map = signal_map
-
-        self._is_open = False
-
-    @property
-    def is_open(self):
-        """ ``True`` if the instance is currently open. """
-        return self._is_open
-
-    def open(self):
-        """ Become a daemon process.
-
-            :return: ``None``.
-
-            Open the daemon context, turning the current program into a daemon
-            process. This performs the following steps:
-
-            * If this instance's `is_open` property is true, return
-              immediately. This makes it safe to call `open` multiple times on
-              an instance.
-
-            * If the `prevent_core` attribute is true, set the resource limits
-              for the process to prevent any core dump from the process.
-
-            * If the `chroot_directory` attribute is not ``None``, set the
-              effective root directory of the process to that directory (via
-              `os.chroot`).
-
-              This allows running the daemon process inside a “chroot gaol”
-              as a means of limiting the system's exposure to rogue behaviour
-              by the process. Note that the specified directory needs to
-              already be set up for this purpose.
-
-            * Set the process UID and GID to the `uid` and `gid` attribute
-              values.
-
-            * Close all open file descriptors. This excludes those listed in
-              the `files_preserve` attribute, and those that correspond to the
-              `stdin`, `stdout`, or `stderr` attributes.
-
-            * Change current working directory to the path specified by the
-              `working_directory` attribute.
-
-            * Reset the file access creation mask to the value specified by
-              the `umask` attribute.
-
-            * If the `detach_process` option is true, detach the current
-              process into its own process group, and disassociate from any
-              controlling terminal.
-
-            * Set signal handlers as specified by the `signal_map` attribute.
-
-            * If any of the attributes `stdin`, `stdout`, `stderr` are not
-              ``None``, bind the system streams `sys.stdin`, `sys.stdout`,
-              and/or `sys.stderr` to the files represented by the
-              corresponding attributes. Where the attribute has a file
-              descriptor, the descriptor is duplicated (instead of re-binding
-              the name).
-
-            * If the `pidfile` attribute is not ``None``, enter its context
-              manager.
-
-            * Mark this instance as open (for the purpose of future `open` and
-              `close` calls).
-
-            * Register the `close` method to be called during Python's exit
-              processing.
-
-            When the function returns, the running program is a daemon
-            process.
-
-            """
-        if self.is_open:
-            return
-
-        if self.chroot_directory is not None:
-            change_root_directory(self.chroot_directory)
-
-        if self.prevent_core:
-            prevent_core_dump()
-
-        change_file_creation_mask(self.umask)
-        change_working_directory(self.working_directory)
-        change_process_owner(self.uid, self.gid)
-
-        if self.detach_process:
-            detach_process_context()
-
-        signal_handler_map = self._make_signal_handler_map()
-        set_signal_handlers(signal_handler_map)
-
-        exclude_fds = self._get_exclude_file_descriptors()
-        close_all_open_files(exclude=exclude_fds)
-
-        redirect_stream(sys.stdin, self.stdin)
-        redirect_stream(sys.stdout, self.stdout)
-        redirect_stream(sys.stderr, self.stderr)
-
-        if self.pidfile is not None:
-            self.pidfile.__enter__()
-
-        self._is_open = True
-
-        register_atexit_function(self.close)
-
-    def __enter__(self):
-        """ Context manager entry point. """
-        self.open()
-        return self
-
-    def close(self):
-        """ Exit the daemon process context.
-
-            :return: ``None``.
-
-            Close the daemon context. This performs the following steps:
-
-            * If this instance's `is_open` property is false, return
-              immediately. This makes it safe to call `close` multiple times
-              on an instance.
-
-            * If the `pidfile` attribute is not ``None``, exit its context
-              manager.
-
-            * Mark this instance as closed (for the purpose of future `open`
-              and `close` calls).
-
-            """
-        if not self.is_open:
-            return
-
-        if self.pidfile is not None:
-            # Follow the interface for telling a context manager to exit,
-            # <URL:http://docs.python.org/library/stdtypes.html#typecontextmanager>.
-            self.pidfile.__exit__(None, None, None)
-
-        self._is_open = False
-
-    def __exit__(self, exc_type, exc_value, traceback):
-        """ Context manager exit point. """
-        self.close()
-
-    def terminate(self, signal_number, stack_frame):
-        """ Signal handler for end-process signals.
-
-            :param signal_number: The OS signal number received.
-            :param stack_frame: The frame object at the point the
-                signal was received.
-            :return: ``None``.
-
-            Signal handler for the ``signal.SIGTERM`` signal. Performs the
-            following step:
-
-            * Raise a ``SystemExit`` exception explaining the signal.
-
-            """
-        exception = SystemExit(
-            "Terminating on signal {signal_number!r}".format(
-                signal_number=signal_number))
-        raise exception
-
-    def _get_exclude_file_descriptors(self):
-        """ Get the set of file descriptors to exclude closing.
-
-            :return: A set containing the file descriptors for the
-                files to be preserved.
-
-            The file descriptors to be preserved are those from the
-            items in `files_preserve`, and also each of `stdin`,
-            `stdout`, and `stderr`. For each item:
-
-            * If the item is ``None``, it is omitted from the return
-              set.
-
-            * If the item's ``fileno()`` method returns a value, that
-              value is in the return set.
-
-            * Otherwise, the item is in the return set verbatim.
-
-            """
-        files_preserve = self.files_preserve
-        if files_preserve is None:
-            files_preserve = []
-        files_preserve.extend(
-            item for item in [self.stdin, self.stdout, self.stderr]
-            if hasattr(item, 'fileno'))
-
-        exclude_descriptors = set()
-        for item in files_preserve:
-            if item is None:
-                continue
-            file_descriptor = _get_file_descriptor(item)
-            if file_descriptor is not None:
-                exclude_descriptors.add(file_descriptor)
-            else:
-                exclude_descriptors.add(item)
-
-        return exclude_descriptors
-
-    def _make_signal_handler(self, target):
-        """ Make the signal handler for a specified target object.
-
-            :param target: A specification of the target for the
-                handler; see below.
-            :return: The value for use by `signal.signal()`.
-
-            If `target` is ``None``, return ``signal.SIG_IGN``. If `target`
-            is a text string, return the attribute of this instance named
-            by that string. Otherwise, return `target` itself.
-
-            """
-        if target is None:
-            result = signal.SIG_IGN
-        elif isinstance(target, unicode):
-            name = target
-            result = getattr(self, name)
-        else:
-            result = target
-
-        return result
-
-    def _make_signal_handler_map(self):
-        """ Make the map from signals to handlers for this instance.
-
-            :return: The constructed signal map for this instance.
-
-            Construct a map from signal numbers to handlers for this
-            context instance, suitable for passing to
-            `set_signal_handlers`.
-
-            """
-        signal_handler_map = dict(
-            (signal_number, self._make_signal_handler(target))
-            for (signal_number, target) in self.signal_map.items())
-        return signal_handler_map
-
-
-def _get_file_descriptor(obj):
-    """ Get the file descriptor, if the object has one.
-
-        :param obj: The object expected to be a file-like object.
-        :return: The file descriptor iff the file supports it; otherwise
-            ``None``.
-
-        The object may be a non-file object. It may also be a
-        file-like object with no support for a file descriptor. In
-        either case, return ``None``.
-
-        """
-    file_descriptor = None
-    if hasattr(obj, 'fileno'):
-        try:
-            file_descriptor = obj.fileno()
-        except ValueError:
-            # The item doesn't support a file descriptor.
-            pass
-
-    return file_descriptor
-
-
-def change_working_directory(directory):
-    """ Change the working directory of this process.
-
-        :param directory: The target directory path.
-        :return: ``None``.
-
-        """
-    try:
-        os.chdir(directory)
-    except Exception as exc:
-        error = DaemonOSEnvironmentError(
-            "Unable to change working directory ({exc})".format(exc=exc))
-        raise error
-
-
-def change_root_directory(directory):
-    """ Change the root directory of this process.
-
-        :param directory: The target directory path.
-        :return: ``None``.
-
-        Set the current working directory, then the process root directory,
-        to the specified `directory`. Requires appropriate OS privileges
-        for this process.
-
-        """
-    try:
-        os.chdir(directory)
-        os.chroot(directory)
-    except Exception as exc:
-        error = DaemonOSEnvironmentError(
-            "Unable to change root directory ({exc})".format(exc=exc))
-        raise error
-
-
-def change_file_creation_mask(mask):
-    """ Change the file creation mask for this process.
-
-        :param mask: The numeric file creation mask to set.
-        :return: ``None``.
-
-        """
-    try:
-        os.umask(mask)
-    except Exception as exc:
-        error = DaemonOSEnvironmentError(
-            "Unable to change file creation mask ({exc})".format(exc=exc))
-        raise error
-
-
-def change_process_owner(uid, gid):
-    """ Change the owning UID and GID of this process.
-
-        :param uid: The target UID for the daemon process.
-        :param gid: The target GID for the daemon process.
-        :return: ``None``.
-
-        Set the GID then the UID of the process (in that order, to avoid
-        permission errors) to the specified `gid` and `uid` values.
-        Requires appropriate OS privileges for this process.
-
-        """
-    try:
-        os.setgid(gid)
-        os.setuid(uid)
-    except Exception as exc:
-        error = DaemonOSEnvironmentError(
-            "Unable to change process owner ({exc})".format(exc=exc))
-        raise error
-
-
-def prevent_core_dump():
-    """ Prevent this process from generating a core dump.
-
-        :return: ``None``.
-
-        Set the soft and hard limits for core dump size to zero. On Unix,
-        this entirely prevents the process from creating core dump.
-
-        """
-    core_resource = resource.RLIMIT_CORE
-
-    try:
-        # Ensure the resource limit exists on this platform, by requesting
-        # its current value.
-        core_limit_prev = resource.getrlimit(core_resource)
-    except ValueError as exc:
-        error = DaemonOSEnvironmentError(
-            "System does not support RLIMIT_CORE resource limit"
-            " ({exc})".format(exc=exc))
-        raise error
-
-    # Set hard and soft limits to zero, i.e. no core dump at all.
-    core_limit = (0, 0)
-    resource.setrlimit(core_resource, core_limit)
-
-
-def detach_process_context():
-    """ Detach the process context from parent and session.
-
-        :return: ``None``.
-
-        Detach from the parent process and session group, allowing the
-        parent to exit while this process continues running.
-
-        Reference: “Advanced Programming in the Unix Environment”,
-        section 13.3, by W. Richard Stevens, published 1993 by
-        Addison-Wesley.
-
-        """
-
-    def fork_then_exit_parent(error_message):
-        """ Fork a child process, then exit the parent process.
-
-            :param error_message: Message for the exception in case of a
-                detach failure.
-            :return: ``None``.
-            :raise DaemonProcessDetachError: If the fork fails.
-
-            """
-        try:
-            pid = os.fork()
-            if pid > 0:
-                os._exit(0)
-        except OSError as exc:
-            error = DaemonProcessDetachError(
-                "{message}: [{exc.errno:d}] {exc.strerror}".format(
-                    message=error_message, exc=exc))
-            raise error
-
-    fork_then_exit_parent(error_message="Failed first fork")
-    os.setsid()
-    fork_then_exit_parent(error_message="Failed second fork")
-
-
-def is_process_started_by_init():
-    """ Determine whether the current process is started by `init`.
-
-        :return: ``True`` iff the parent process is `init`; otherwise
-            ``False``.
-
-        The `init` process is the one with process ID of 1.
-
-        """
-    result = False
-
-    init_pid = 1
-    if os.getppid() == init_pid:
-        result = True
-
-    return result
-
-
-def is_socket(fd):
-    """ Determine whether the file descriptor is a socket.
-
-        :param fd: The file descriptor to interrogate.
-        :return: ``True`` iff the file descriptor is a socket; otherwise
-            ``False``.
-
-        Query the socket type of `fd`. If there is no error, the file is a
-        socket.
-
-        """
-    result = False
-
-    file_socket = socket.fromfd(fd, socket.AF_INET, socket.SOCK_RAW)
-
-    try:
-        socket_type = file_socket.getsockopt(
-            socket.SOL_SOCKET, socket.SO_TYPE)
-    except socket.error as exc:
-        exc_errno = exc.args[0]
-        if exc_errno == errno.ENOTSOCK:
-            # Socket operation on non-socket.
-            pass
-        else:
-            # Some other socket error.
-            result = True
-    else:
-        # No error getting socket type.
-        result = True
-
-    return result
-
-
-def is_process_started_by_superserver():
-    """ Determine whether the current process is started by the superserver.
-
-        :return: ``True`` if this process was started by the internet
-            superserver; otherwise ``False``.
-
-        The internet superserver creates a network socket, and
-        attaches it to the standard streams of the child process. If
-        that is the case for this process, return ``True``, otherwise
-        ``False``.
-
-        """
-    result = False
-
-    stdin_fd = sys.__stdin__.fileno()
-    if is_socket(stdin_fd):
-        result = True
-
-    return result
-
-
-def is_detach_process_context_required():
-    """ Determine whether detaching the process context is required.
-
-        :return: ``True`` iff the process is already detached; otherwise
-            ``False``.
-
-        The process environment is interrogated for the following:
-
-        * Process was started by `init`; or
-
-        * Process was started by `inetd`.
-
-        If any of the above are true, the process is deemed to be already
-        detached.
-
-        """
-    result = True
-    if is_process_started_by_init() or is_process_started_by_superserver():
-        result = False
-
-    return result
-
-
-def close_file_descriptor_if_open(fd):
-    """ Close a file descriptor if already open.
-
-        :param fd: The file descriptor to close.
-        :return: ``None``.
-
-        Close the file descriptor `fd`, suppressing an error in the
-        case the file was not open.
-
-        """
-    try:
-        os.close(fd)
-    except EnvironmentError as exc:
-        if exc.errno == errno.EBADF:
-            # File descriptor was not open.
-            pass
-        else:
-            error = DaemonOSEnvironmentError(
-                "Failed to close file descriptor {fd:d} ({exc})".format(
-                    fd=fd, exc=exc))
-            raise error
-
-
-MAXFD = 2048
-
-
-def get_maximum_file_descriptors():
-    """ Get the maximum number of open file descriptors for this process.
-
-        :return: The number (integer) to use as the maximum number of open
-            files for this process.
-
-        The maximum is the process hard resource limit of maximum number of
-        open file descriptors. If the limit is “infinity”, a default value
-        of ``MAXFD`` is returned.
-
-        """
-    limits = resource.getrlimit(resource.RLIMIT_NOFILE)
-    result = limits[1]
-    if result == resource.RLIM_INFINITY:
-        result = MAXFD
-    return result
-
-
-def close_all_open_files(exclude=set()):
-    """ Close all open file descriptors.
-
-        :param exclude: Collection of file descriptors to skip when closing
-            files.
-        :return: ``None``.
-
-        Closes every file descriptor (if open) of this process. If
-        specified, `exclude` is a set of file descriptors to *not*
-        close.
-
-        """
-    maxfd = get_maximum_file_descriptors()
-    for fd in reversed(range(maxfd)):
-        if fd not in exclude:
-            close_file_descriptor_if_open(fd)
-
-
-def redirect_stream(system_stream, target_stream):
-    """ Redirect a system stream to a specified file.
-
-        :param standard_stream: A file object representing a standard I/O
-            stream.
-        :param target_stream: The target file object for the redirected
-            stream, or ``None`` to specify the null device.
-        :return: ``None``.
-
-        `system_stream` is a standard system stream such as
-        ``sys.stdout``. `target_stream` is an open file object that
-        should replace the corresponding system stream object.
-
-        If `target_stream` is ``None``, defaults to opening the
-        operating system's null device and using its file descriptor.
-
-        """
-    if target_stream is None:
-        target_fd = os.open(os.devnull, os.O_RDWR)
-    else:
-        target_fd = target_stream.fileno()
-    os.dup2(target_fd, system_stream.fileno())
-
-
-def make_default_signal_map():
-    """ Make the default signal map for this system.
-
-        :return: A mapping from signal number to handler object.
-
-        The signals available differ by system. The map will not contain
-        any signals not defined on the running system.
-
-        """
-    name_map = {
-        'SIGTSTP': None,
-        'SIGTTIN': None,
-        'SIGTTOU': None,
-        'SIGTERM': 'terminate',
-    }
-    signal_map = dict(
-        (getattr(signal, name), target)
-        for (name, target) in name_map.items()
-        if hasattr(signal, name))
-
-    return signal_map
-
-
-def set_signal_handlers(signal_handler_map):
-    """ Set the signal handlers as specified.
-
-        :param signal_handler_map: A map from signal number to handler
-            object.
-        :return: ``None``.
-
-        See the `signal` module for details on signal numbers and signal
-        handlers.
-
-        """
-    for (signal_number, handler) in signal_handler_map.items():
-        signal.signal(signal_number, handler)
-
-
-def register_atexit_function(func):
-    """ Register a function for processing at program exit.
-
-        :param func: A callable function expecting no arguments.
-        :return: ``None``.
-
-        The function `func` is registered for a call with no arguments
-        at program exit.
-
-        """
-    atexit.register(func)
-
-
-def _chain_exception_from_existing_exception_context(exc, as_cause=False):
-    """ Decorate the specified exception with the existing exception context.
-
-        :param exc: The exception instance to decorate.
-        :param as_cause: If true, the existing context is declared to be
-            the cause of the exception.
-        :return: ``None``.
-
-        :PEP:`344` describes syntax and attributes (`__traceback__`,
-        `__context__`, `__cause__`) for use in exception chaining.
-
-        Python 2 does not have that syntax, so this function decorates
-        the exception with values from the current exception context.
-
-        """
-    (existing_exc_type, existing_exc, existing_traceback) = sys.exc_info()
-    if as_cause:
-        exc.__cause__ = existing_exc
-    else:
-        exc.__context__ = existing_exc
-    exc.__traceback__ = existing_traceback
-
-
-# Local variables:
-# coding: utf-8
-# mode: python
-# End:
-# vim: fileencoding=utf-8 filetype=python :