--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/venv/lib/python2.7/site-packages/pip/commands/install.py	Mon Oct 12 17:43:33 2015 -0400
@@ -0,0 +1,424 @@
+from __future__ import absolute_import
+
+import logging
+import operator
+import os
+import tempfile
+import shutil
+import warnings
+
+from pip.req import InstallRequirement, RequirementSet, parse_requirements
+from pip.locations import build_prefix, virtualenv_no_global, distutils_scheme
+from pip.basecommand import Command
+from pip.index import PackageFinder
+from pip.exceptions import (
+    InstallationError, CommandError, PreviousBuildDirError,
+)
+from pip import cmdoptions
+from pip.utils.build import BuildDirectory
+from pip.utils.deprecation import RemovedInPip7Warning, RemovedInPip8Warning
+
+
+logger = logging.getLogger(__name__)
+
+
+class InstallCommand(Command):
+    """
+    Install packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports installing from "requirements files", which provide
+    an easy way to specify a whole environment to be installed.
+    """
+    name = 'install'
+
+    usage = """
+      %prog [options] <requirement specifier> [package-index-options] ...
+      %prog [options] -r <requirements file> [package-index-options] ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Install packages.'
+
+    def __init__(self, *args, **kw):
+        super(InstallCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(cmdoptions.editable.make())
+        cmd_opts.add_option(cmdoptions.requirements.make())
+        cmd_opts.add_option(cmdoptions.build_dir.make())
+
+        cmd_opts.add_option(
+            '-t', '--target',
+            dest='target_dir',
+            metavar='dir',
+            default=None,
+            help='Install packages into <dir>. '
+                 'By default this will not replace existing files/folders in '
+                 '<dir>. Use --upgrade to replace existing packages in <dir> '
+                 'with new versions.'
+        )
+
+        cmd_opts.add_option(
+            '-d', '--download', '--download-dir', '--download-directory',
+            dest='download_dir',
+            metavar='dir',
+            default=None,
+            help=("Download packages into <dir> instead of installing them, "
+                  "regardless of what's already installed."),
+        )
+
+        cmd_opts.add_option(cmdoptions.download_cache.make())
+        cmd_opts.add_option(cmdoptions.src.make())
+
+        cmd_opts.add_option(
+            '-U', '--upgrade',
+            dest='upgrade',
+            action='store_true',
+            help='Upgrade all specified packages to the newest available '
+                 'version. This process is recursive regardless of whether '
+                 'a dependency is already satisfied.'
+        )
+
+        cmd_opts.add_option(
+            '--force-reinstall',
+            dest='force_reinstall',
+            action='store_true',
+            help='When upgrading, reinstall all packages even if they are '
+                 'already up-to-date.')
+
+        cmd_opts.add_option(
+            '-I', '--ignore-installed',
+            dest='ignore_installed',
+            action='store_true',
+            help='Ignore the installed packages (reinstalling instead).')
+
+        cmd_opts.add_option(cmdoptions.no_deps.make())
+
+        cmd_opts.add_option(
+            '--no-install',
+            dest='no_install',
+            action='store_true',
+            help="DEPRECATED. Download and unpack all packages, but don't "
+                 "actually install them."
+        )
+
+        cmd_opts.add_option(
+            '--no-download',
+            dest='no_download',
+            action="store_true",
+            help="DEPRECATED. Don't download any packages, just install the "
+                 "ones already downloaded (completes an install run with "
+                 "--no-install).")
+
+        cmd_opts.add_option(cmdoptions.install_options.make())
+        cmd_opts.add_option(cmdoptions.global_options.make())
+
+        cmd_opts.add_option(
+            '--user',
+            dest='use_user_site',
+            action='store_true',
+            help="Install to the Python user install directory for your "
+                 "platform. Typically ~/.local/, or %APPDATA%\Python on "
+                 "Windows. (See the Python documentation for site.USER_BASE "
+                 "for full details.)")
+
+        cmd_opts.add_option(
+            '--egg',
+            dest='as_egg',
+            action='store_true',
+            help="Install packages as eggs, not 'flat', like pip normally "
+                 "does. This option is not about installing *from* eggs. "
+                 "(WARNING: Because this option overrides pip's normal install"
+                 " logic, requirements files may not behave as expected.)")
+
+        cmd_opts.add_option(
+            '--root',
+            dest='root_path',
+            metavar='dir',
+            default=None,
+            help="Install everything relative to this alternate root "
+                 "directory.")
+
+        cmd_opts.add_option(
+            "--compile",
+            action="store_true",
+            dest="compile",
+            default=True,
+            help="Compile py files to pyc",
+        )
+
+        cmd_opts.add_option(
+            "--no-compile",
+            action="store_false",
+            dest="compile",
+            help="Do not compile py files to pyc",
+        )
+
+        cmd_opts.add_option(cmdoptions.use_wheel.make())
+        cmd_opts.add_option(cmdoptions.no_use_wheel.make())
+
+        cmd_opts.add_option(
+            '--pre',
+            action='store_true',
+            default=False,
+            help="Include pre-release and development versions. By default, "
+                 "pip only finds stable versions.")
+
+        cmd_opts.add_option(cmdoptions.no_clean.make())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def _build_package_finder(self, options, index_urls, session):
+        """
+        Create a package finder appropriate to this install command.
+        This method is meant to be overridden by subclasses, not
+        called directly.
+        """
+        return PackageFinder(
+            find_links=options.find_links,
+            index_urls=index_urls,
+            use_wheel=options.use_wheel,
+            allow_external=options.allow_external,
+            allow_unverified=options.allow_unverified,
+            allow_all_external=options.allow_all_external,
+            trusted_hosts=options.trusted_hosts,
+            allow_all_prereleases=options.pre,
+            process_dependency_links=options.process_dependency_links,
+            session=session,
+        )
+
+    def run(self, options, args):
+
+        if (
+            options.no_install or
+            options.no_download
+        ):
+            warnings.warn(
+                "--no-install and --no-download are deprecated. "
+                "See https://github.com/pypa/pip/issues/906.",
+                RemovedInPip7Warning,
+            )
+
+        # If we have --no-install or --no-download and no --build we use the
+        # legacy static build dir
+        if (options.build_dir is None and
+                (options.no_install or options.no_download)):
+            options.build_dir = build_prefix
+
+        if options.download_dir:
+            options.no_install = True
+            options.ignore_installed = True
+
+        if options.build_dir:
+            options.build_dir = os.path.abspath(options.build_dir)
+
+        options.src_dir = os.path.abspath(options.src_dir)
+        install_options = options.install_options or []
+        if options.use_user_site:
+            if virtualenv_no_global():
+                raise InstallationError(
+                    "Can not perform a '--user' install. User site-packages "
+                    "are not visible in this virtualenv."
+                )
+            install_options.append('--user')
+
+        temp_target_dir = None
+        if options.target_dir:
+            options.ignore_installed = True
+            temp_target_dir = tempfile.mkdtemp()
+            options.target_dir = os.path.abspath(options.target_dir)
+            if (os.path.exists(options.target_dir) and not
+                    os.path.isdir(options.target_dir)):
+                raise CommandError(
+                    "Target path exists but is not a directory, will not "
+                    "continue."
+                )
+            install_options.append('--home=' + temp_target_dir)
+
+        global_options = options.global_options or []
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.info('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        if options.use_mirrors:
+            warnings.warn(
+                "--use-mirrors has been deprecated and will be removed in the "
+                "future. Explicit uses of --index-url and/or --extra-index-url"
+                " is suggested.",
+                RemovedInPip7Warning,
+            )
+
+        if options.mirrors:
+            warnings.warn(
+                "--mirrors has been deprecated and will be removed in the "
+                "future. Explicit uses of --index-url and/or --extra-index-url"
+                " is suggested.",
+                RemovedInPip7Warning,
+            )
+            index_urls += options.mirrors
+
+        if options.download_cache:
+            warnings.warn(
+                "--download-cache has been deprecated and will be removed in "
+                "the future. Pip now automatically uses and configures its "
+                "cache.",
+                RemovedInPip8Warning,
+            )
+
+        with self._build_session(options) as session:
+
+            finder = self._build_package_finder(options, index_urls, session)
+
+            build_delete = (not (options.no_clean or options.build_dir))
+            with BuildDirectory(options.build_dir,
+                                delete=build_delete) as build_dir:
+                requirement_set = RequirementSet(
+                    build_dir=build_dir,
+                    src_dir=options.src_dir,
+                    download_dir=options.download_dir,
+                    upgrade=options.upgrade,
+                    as_egg=options.as_egg,
+                    ignore_installed=options.ignore_installed,
+                    ignore_dependencies=options.ignore_dependencies,
+                    force_reinstall=options.force_reinstall,
+                    use_user_site=options.use_user_site,
+                    target_dir=temp_target_dir,
+                    session=session,
+                    pycompile=options.compile,
+                    isolated=options.isolated_mode,
+                )
+
+                for name in args:
+                    requirement_set.add_requirement(
+                        InstallRequirement.from_line(
+                            name, None, isolated=options.isolated_mode,
+                        )
+                    )
+
+                for name in options.editables:
+                    requirement_set.add_requirement(
+                        InstallRequirement.from_editable(
+                            name,
+                            default_vcs=options.default_vcs,
+                            isolated=options.isolated_mode,
+                        )
+                    )
+
+                for filename in options.requirements:
+                    for req in parse_requirements(
+                            filename,
+                            finder=finder, options=options, session=session):
+                        requirement_set.add_requirement(req)
+
+                if not requirement_set.has_requirements:
+                    opts = {'name': self.name}
+                    if options.find_links:
+                        msg = ('You must give at least one requirement to '
+                               '%(name)s (maybe you meant "pip %(name)s '
+                               '%(links)s"?)' %
+                               dict(opts, links=' '.join(options.find_links)))
+                    else:
+                        msg = ('You must give at least one requirement '
+                               'to %(name)s (see "pip help %(name)s")' % opts)
+                    logger.warning(msg)
+                    return
+
+                try:
+                    if not options.no_download:
+                        requirement_set.prepare_files(finder)
+                    else:
+                        # This is the only call site of locate_files. Nuke with
+                        # fire.
+                        requirement_set.locate_files()
+
+                    if not options.no_install:
+                        requirement_set.install(
+                            install_options,
+                            global_options,
+                            root=options.root_path,
+                        )
+                        reqs = sorted(
+                            requirement_set.successfully_installed,
+                            key=operator.attrgetter('name'))
+                        items = []
+                        for req in reqs:
+                            item = req.name
+                            try:
+                                if hasattr(req, 'installed_version'):
+                                    if req.installed_version:
+                                        item += '-' + req.installed_version
+                            except Exception:
+                                pass
+                            items.append(item)
+                        installed = ' '.join(items)
+                        if installed:
+                            logger.info('Successfully installed %s', installed)
+                    else:
+                        downloaded = ' '.join([
+                            req.name
+                            for req in requirement_set.successfully_downloaded
+                        ])
+                        if downloaded:
+                            logger.info(
+                                'Successfully downloaded %s', downloaded
+                            )
+                except PreviousBuildDirError:
+                    options.no_clean = True
+                    raise
+                finally:
+                    # Clean up
+                    if ((not options.no_clean) and
+                            ((not options.no_install) or
+                                options.download_dir)):
+                        requirement_set.cleanup_files()
+
+        if options.target_dir:
+            if not os.path.exists(options.target_dir):
+                os.makedirs(options.target_dir)
+
+            lib_dir = distutils_scheme('', home=temp_target_dir)['purelib']
+
+            for item in os.listdir(lib_dir):
+                target_item_dir = os.path.join(options.target_dir, item)
+                if os.path.exists(target_item_dir):
+                    if not options.upgrade:
+                        logger.warning(
+                            'Target directory %s already exists. Specify '
+                            '--upgrade to force replacement.',
+                            target_item_dir
+                        )
+                        continue
+                    if os.path.islink(target_item_dir):
+                        logger.warning(
+                            'Target directory %s already exists and is '
+                            'a link. Pip will not automatically replace '
+                            'links, please remove if replacement is '
+                            'desired.',
+                            target_item_dir
+                        )
+                        continue
+                    if os.path.isdir(target_item_dir):
+                        shutil.rmtree(target_item_dir)
+                    else:
+                        os.remove(target_item_dir)
+
+                shutil.move(
+                    os.path.join(lib_dir, item),
+                    target_item_dir
+                )
+            shutil.rmtree(temp_target_dir)
+        return requirement_set