def test_demandload(self):
     scope = {}
     demandload.demandload(scope, 'snakeoil:demandload')
     self.assertNotIdentical(demandload, scope['demandload'])
     self.assertIdentical(
         demandload.demandload, scope['demandload'].demandload)
     self.assertIdentical(demandload, scope['demandload'])

# Rationale is the former should be a PYTHONPATH issue while the
# latter an installed plugin issue. May have to change this if it
# causes problems.

from collections import defaultdict
from importlib import import_module
import operator
import os.path

from snakeoil import compatibility, mappings, modules, sequences
from snakeoil.demandload import demandload
from snakeoil.osutils import pjoin, listdir_files

from pkgcore import plugins

demandload("errno", "tempfile", "snakeoil:fileutils,osutils", "pkgcore.log:logger")


_plugin_data = sequences.namedtuple("_plugin_data", ["key", "priority", "source", "target"])

PLUGIN_ATTR = "pkgcore_plugins"

CACHE_HEADER = "pkgcore plugin cache v3"
CACHE_FILENAME = "plugincache"


def _clean_old_caches(path):
    for name in ("plugincache2",):
        try:
            osutils.unlink_if_exists(pjoin(path, name))
        except EnvironmentError as e:

from copy import deepcopy
from operator import attrgetter
from urllib.parse import urlencode

from snakeoil.demandload import demandload

from . import Cli

demandload('bite:const')


class Monorail(Cli):
    """CLI for Monorail service."""

    _service = 'monorail'

    def _search_params(self, **kw):
        query = {}
        query_list = []
        options_log = []

        for k, v in ((k, v) for (k, v) in kw.items() if v):
            if k == 'query':
                query_list.append(v)
                options_log.append('  advanced query: {}'.format(v))
            if k == 'attachment':
                query_list.append('attachment:{}'.format(v))
                options_log.append('  attachment: {}'.format(v))
            if k == 'blocked':
                query_list.append('is:blocked')
                options_log.append('  blocked: yes')

    "describe_class", "describe_class_main",
    "configurables", "configurables_main",
    "dump_uncollapsed", "dump_uncollapsed_main"
)

from functools import partial

from snakeoil.demandload import demandload

from pkgcore.config import errors, basics
from pkgcore.ebuild import atom
from pkgcore.plugin import get_plugins
from pkgcore.util import commandline

demandload(
    'textwrap',
    'traceback',
)


def dump_section(config, out):
    out.first_prefix.append('    ')
    out.write('# typename of this section: %s' % (config.type.name,))
    out.write('class %s.%s;' % (config.type.callable.__module__,
                                config.type.callable.__name__))
    if config.default:
        out.write('default true;')
    for key, val in sorted(config.config.iteritems()):
        typename = config.type.types.get(key)
        if typename is None:
            if config.type.allow_unknowns:
                typename = 'str'

from collections import OrderedDict
from itertools import chain
import re
import subprocess
import sys

from snakeoil.demandload import demandload
from snakeoil.strings import pluralism

from . import Cli, login_required
from ..exceptions import BiteError
from ..utils import block_edit, get_input, launch_browser

demandload(
    'pprint',
    'urllib.parse:parse_qs',
    'bite:const',
)


class Bugzilla(Cli):
    """CLI for Bugzilla service."""

    _service = 'bugzilla'

    def attach(self, *args, **kw):
        if kw['comment'] is None:
            kw['comment'] = block_edit('Enter optional long description of attachment')
        super().attach(*args, **kw)

    def create(self, *args, **kw):

    "uninstall",
    "replace",
    "fetch_base",
    "empty_build_op",
    "FailedDirectory",
    "GenericBuildError",
    "errors",
)

from pkgcore import operations as _operations_mod
from snakeoil.dependant_methods import ForcedDepends
from snakeoil import klass

from snakeoil import demandload

demandload.demandload(globals(), "pkgcore:[email protected]_fetch_module", "snakeoil.lists:iflatten_instance")


class fetch_base(object):
    def __init__(self, domain, pkg, fetchables, fetcher):
        self.verified_files = {}
        self._basenames = set()
        self.domain = domain
        self.pkg = pkg
        self.fetchables = fetchables
        self.fetcher = fetcher

    def fetch_all(self, observer):
        for fetchable in self.fetchables:
            if not self.fetch_one(fetchable, observer):
                return False

# Copyright: 2011-2012 Brian Harring <[email protected]>
# License: GPL2/BSD 3 clause

import os
import sys

from snakeoil.demandload import demandload
demandload(
    globals(),
    'subprocess',
    'snakeoil.osutils:access',
    'snakeoil.fileutils:readlines_ascii',
)

def _parse_cpuinfo():
    data = readlines_ascii("/proc/cpuinfo", True, True, False)
    procs = []
    current = []
    for line in data:
        if not line:
            if current:
                procs.append(current)
                current = []
        else:
            current.append(line.split(":", 1))
    return [{k.strip(): v.strip() for k, v in items} for items in procs]

def _get_linux_physical_proc_count():
    procs = _parse_cpuinfo()
    if not procs:
        return _get_linux_proc_count()

import os
import signal

from pkgcore import const, os_data
from pkgcore.ebuild import const as e_const
import pkgcore.spawn

from snakeoil import klass
from snakeoil.currying import pretty_docs
from snakeoil.demandload import demandload
from snakeoil.osutils import abspath, normpath, pjoin
from snakeoil.weakrefs import WeakRefFinalizer

demandload(
    'traceback',
    'snakeoil:fileutils',
    'pkgcore.log:logger',
)


def _single_thread_allowed(functor):
    def _inner(*args, **kwds):
        _acquire_global_ebp_lock()
        try:
            return functor(*args, **kwds)
        finally:
            _release_global_ebp_lock()
    _inner.func = functor
    pretty_docs(_inner, name=functor.__name__)
    return _inner

gentoo ebuild atom, should be generalized into an agnostic base
"""

__all__ = ("atom", "transitive_use_atom", "generate_collapsed_restriction")

import string
from pkgcore.restrictions import values, packages, boolean
from pkgcore.ebuild import cpv, errors, const, restricts
from snakeoil.compatibility import is_py3k, cmp, raise_from
from snakeoil.klass import (generic_equality, inject_richcmp_methods_from_cmp,
    reflective_hash, alias_attr)
from snakeoil.demandload import demandload
from snakeoil.currying import partial
demandload(globals(),
    "pkgcore.restrictions.delegated:delegate",
    'pkgcore.restrictions.packages:Conditional,[email protected]',
    'pkgcore.restrictions.values:ContainmentMatch',
    'collections:defaultdict',
)

# namespace compatibility...
MalformedAtom = errors.MalformedAtom

alphanum = set(string.digits)
if is_py3k:
    alphanum.update(string.ascii_letters)
else:
    alphanum.update(string.letters)

valid_repo_chars = set(alphanum)
valid_repo_chars.update("_-")
valid_use_chars = set(alphanum)

# Copyright: 2011 Brian Harring <[email protected]>
# License: GPL2/BSD 3 clause

from operator import itemgetter
from collections import deque, defaultdict
from snakeoil.osutils import listdir_files, pjoin
from snakeoil.fileutils import readlines
from snakeoil.iterables import chain_from_iterable
from pkgcore.ebuild.atom import atom
from snakeoil.lists import iflatten_instance
from snakeoil import demandload
demandload.demandload(globals(),
    'pkgcore.log:logger',
)

demandload.demand_compile_regexp(globals(), "valid_updates_re", "^(\d)Q-(\d{4})$")


def _scan_directory(path):
    files = []
    for x in listdir_files(path):
        match = valid_updates_re.match(x)
        if match is not None:
            files.append(((match.group(2), match.group(1)), x))
    files.sort(key=itemgetter(0))
    return [x[1] for x in files]

def read_updates(path):
    def f():
        d = deque()
        return [d,d]

pkgset based around loading a list of atoms from a world file
"""

__all__ = ("FileList", "WorldFile")

from snakeoil import compatibility, klass
from snakeoil.demandload import demandload

from pkgcore.config import ConfigHint, errors
from pkgcore.ebuild import const
from pkgcore.ebuild.atom import atom
from pkgcore.package.errors import InvalidDependency

demandload(
    'snakeoil.fileutils:AtomicWriteFile,readlines_ascii',
    'pkgcore:os_data',
    'pkgcore.log:logger',
)


class FileList(object):
    pkgcore_config_type = ConfigHint({'location': 'str'}, typename='pkgset')
    error_on_subsets = True

    def __init__(self, location, gid=os_data.portage_gid, mode=0644):
        self.path = location
        self.gid = gid
        self.mode = mode
        # note that _atoms is generated on the fly.

    @klass.jit_attr

# Copyright: 2006-2011 Brian Harring <[email protected]>
# License: GPL2/BSD

"""
resolver configuration to match portage behaviour (misbehaviour in a few spots)
"""

__all__ = ["upgrade_resolver", "min_install_resolver"]

from pkgcore.repository import misc, multiplex
from pkgcore.resolver import plan

from snakeoil.demandload import demandload
demandload(globals(),
    'pkgcore.restrictions:packages,values',
)

def upgrade_resolver(vdbs, dbs, verify_vdb=True, nodeps=False,
                     force_replacement=False,
                     resolver_cls=plan.merge_plan, **kwds):

    """
    generate and configure a resolver for upgrading all processed nodes.

    :param vdbs: list of :obj:`pkgcore.repository.prototype.tree` instances
        that represents the livefs
    :param dbs: list of :obj:`pkgcore.repository.prototype.tree` instances
        representing sources of pkgs
    :param verify_vdb: should we stop resolving once we hit the vdb,
        or do full resolution?
    :param force_vdb_virtuals: old style portage virtuals (non metapkgs)

Changing them triggering regen of other attributes on the package instance.
"""

__all__ = ("make_wrapper",)

from functools import partial
from operator import attrgetter

from snakeoil.containers import LimitedChangeSet, Unchangable
from snakeoil.demandload import demandload

from pkgcore.package.base import wrapper

demandload(
    "copy:copy",
)


def _getattr_wrapped(attr, self):
    o = self._cached_wrapped.get(attr)
    if o is None or o[0] != self._reuse_pt:
        o = self._wrapped_attr[attr](
            getattr(self._raw_pkg, attr),
            self._configurable,
            pkg=self)
        o = self._cached_wrapped[attr] = (self._reuse_pt, o)
    return o[1]


def make_wrapper(wrapped_repo, configurable_attribute_name, attributes_to_wrap=(),

__all__ = (
    "syncer_exception", "uri_exception", "generic_exception",
    "missing_local_user", "missing_binary", "syncer", "ExternalSyncer",
    "dvcs_syncer", "GenericSyncer", "DisabledSyncer",
    "AutodetectSyncer",
)

from snakeoil import compatibility
from snakeoil.demandload import demandload

from pkgcore.config import ConfigHint, configurable

demandload(
    'os',
    'pwd',
    'stat',
    'errno',
    'pkgcore:os_data,plugin,spawn',
)


class syncer_exception(Exception):
    pass


class uri_exception(syncer_exception):
    pass


class generic_exception(syncer_exception):
    pass

Changing them triggering regen of other attributes on the package instance.
"""

__all__ = ("make_wrapper",)

from operator import attrgetter

from snakeoil.containers import LimitedChangeSet, Unchangable
from snakeoil.currying import partial

from pkgcore.package.base import wrapper

from snakeoil.demandload import demandload
demandload(globals(),
    "copy",
)


def _getattr_wrapped(attr, self):
    o = self._cached_wrapped.get(attr)
    if o is None or o[0] != self._reuse_pt:
        o = self._wrapped_attr[attr](getattr(self._raw_pkg, attr),
                                     self._configurable)
        o = self._cached_wrapped[attr] = (self._reuse_pt, o)
    return o[1]


def make_wrapper(configurable_attribute_name, attributes_to_wrap=(),
                 kls_injections={}):
    """

__all__ = (
    "ConfigType", "LazySectionRef", "LazyNamedSectionRef", "ConfigSection",
    "DictConfigSection", "FakeIncrementalDictConfigSection", "convert_string",
    "convert_asis", "convert_hybrid", "section_alias", "str_to_list",
    "str_to_str", "str_to_bool", "str_to_int", "parse_config_file",
)

from functools import partial

from snakeoil import compatibility
from snakeoil.demandload import demandload

from pkgcore.config import errors, configurable

demandload("snakeoil:modules")

type_names = ("list", "str", "bool", "int")


# Copied from inspect.py which copied it from compile.h.
# Also documented in http://docs.python.org/ref/types.html.
CO_VARARGS, CO_VARKEYWORDS = 4, 8

if compatibility.is_py3k:
    _code_attrname = '__code__'
else:
    _code_attrname = 'func_code'


class ConfigType(object):

# Copyright: 2006-2011 Brian Harring <[email protected]>
# License: BSD/GPL2

from snakeoil.cli import arghparse
from snakeoil.demandload import demandload

from pkgcore.util import commandline

demandload(
    'os',
    'functools:partial',
    'snakeoil:osutils',
    'pkgcore.ebuild:atom,conditionals',
    'pkgcore.ebuild.eapi:get_eapi',
    'pkgcore.restrictions.boolean:AndRestriction',
    'pkgcore.util:packages',
)

def str_pkg(pkg):
    pkg = packages.get_raw_pkg(pkg)
    # special casing; old style virtuals come through as the original pkg.
    if pkg.package_is_real:
        return pkg.cpvstr
    if hasattr(pkg, "actual_pkg"):
        return pkg.actual_pkg.cpvstr
    # icky, but works.
    return str(pkg.rdepend).lstrip("=")


def get_atom_kls(value):
    eapi = get_eapi(value)

    @copyright: 2012-2015 by Brian Dolbec <[email protected]>
    @copyright: 2014-2015 by Pavlos Ratis <[email protected]>
    @license: GNU GPL2, see COPYING for details.
"""

import os
import re

from snakeoil.demandload import demandload

from gkeys.gkey import GKEY
from gkeys.seed import Seeds, decoder

demandload(
    "json:load",
    "gkeys.exception:UpdateDbError",
    "gkeys.fileops:ensure_dirs",
)


class SeedHandler(object):

    def __init__(self, logger, config):
        self.config = config
        self.logger = logger
        self.fingerprint_re = re.compile('[0-9A-Fa-f]{40}')
        self.finerprint_re2 = re.compile('[0-9A-Fa-f]{4}( [0-9A-Fa-f]{4}){9}')
        self.seeds = None


    def new(self, args, checkgkey=False):

import copy
import logging
import optparse
import os.path
import sys

from snakeoil import klass
from snakeoil.demandload import demandload

from pkgcore.config import load_config

demandload(
    'snakeoil.bash:iter_read_bash',
    'snakeoil:version',
    'pkgcore.config:basics',
    'pkgcore.ebuild:atom',
    'pkgcore.util:parserestrict',
)


CONFIG_LOADED_MSG = (
    'Configuration already loaded. If moving the option earlier '
    'on the commandline does not fix this report it as a bug.')


# Mix in object here or properties do not work (Values is an oldstyle class).
class Values(optparse.Values, object):

    """Values with an autoloaded config property.

    ChunkedDataDict, chunked_data, collapsed_restrict_to_data,
    incremental_expansion, incremental_expansion_license,
    non_incremental_collapsed_restrict_to_data, optimize_incrementals,
    package_keywords_splitter)
from pkgcore.ebuild.repo_objs import OverlayedLicenses
from pkgcore.repository import visibility
from pkgcore.restrictions import packages, values
from pkgcore.restrictions.delegated import delegate
from pkgcore.util.parserestrict import parse_match

demandload(
    'collections:defaultdict',
    'errno',
    'multiprocessing:cpu_count',
    'operator:itemgetter',
    're',
    'pkgcore.binpkg:[email protected]_repo',
    'pkgcore.ebuild:[email protected]_repo',
    'pkgcore.ebuild.triggers:[email protected]_generate_triggers',
    'pkgcore.fs.livefs:iter_scan',
    "pkgcore.repository:util",
)


class MissingFile(BaseError):
    """Required file is missing."""
    def __init__(self, filename, setting):
        BaseError.__init__(
            self, "setting %s points at %s, which doesn't exist."
            % (setting, filename))
        self.file, self.setting = filename, setting