Python setuptools 模块，package_index() 实例源码

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        tmpdir = tempfile.mkdtemp(prefix="easy_install-")
        download = None
        if not self.editable: self.install_site_py()

        try:
            if not isinstance(spec,Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    download = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, download, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable, not self.always_copy,
                self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg+=" (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence==DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

        finally:
            if os.path.exists(tmpdir):
                rmtree(tmpdir)

def easy_install(self, spec, deps=False):
        tmpdir = tempfile.mkdtemp(prefix="easy_install-")
        if not self.editable:
            self.install_site_py()

        try:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

        finally:
            if os.path.exists(tmpdir):
                rmtree(tmpdir)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = requirement or distreq
            requirement = Requirement(
                distreq.project_name, distreq.specs, requirement.extras
            )
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        tmpdir = tempfile.mkdtemp(prefix="easy_install-")
        if not self.editable:
            self.install_site_py()

        try:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

        finally:
            if os.path.exists(tmpdir):
                rmtree(tmpdir)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def easy_install(self, spec, deps=False):
        tmpdir = tempfile.mkdtemp(prefix="easy_install-")
        if not self.editable:
            self.install_site_py()

        try:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

        finally:
            if os.path.exists(tmpdir):
                rmtree(tmpdir)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = requirement or distreq
            requirement = Requirement(
                distreq.project_name, distreq.specs, requirement.extras
            )
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

def process_distribution(self, requirement, dist, deps=True, *info):
        self.update_pth(dist)
        self.package_index.add(dist)
        if dist in self.local_index[dist.key]:
            self.local_index.remove(dist)
        self.local_index.add(dist)
        self.install_egg_scripts(dist)
        self.installed_projects[dist.key] = dist
        log.info(self.installation_report(requirement, dist, *info))
        if (dist.has_metadata('dependency_links.txt') and
                not self.no_find_links):
            self.package_index.add_find_links(
                dist.get_metadata_lines('dependency_links.txt')
            )
        if not deps and not self.always_copy:
            return
        elif requirement is not None and dist.key != requirement.key:
            log.warn("Skipping dependencies for %s", dist)
            return  # XXX this is not the distribution we were looking for
        elif requirement is None or dist not in requirement:
            # if we wound up with a different version, resolve what we've got
            distreq = dist.as_requirement()
            requirement = Requirement(str(distreq))
        log.info("Processing dependencies for %s", requirement)
        try:
            distros = WorkingSet([]).resolve(
                [requirement], self.local_index, self.easy_install
            )
        except DistributionNotFound as e:
            raise DistutilsError(str(e))
        except VersionConflict as e:
            raise DistutilsError(e.report())
        if self.always_copy or self.always_copy_from:
            # Force all the relevant distros to be copied or activated
            for dist in distros:
                if dist.key not in self.installed_projects:
                    self.easy_install(dist.as_requirement())
        log.info("Finished processing dependencies for %s", requirement)

def easy_install(self, spec, deps=False):
        tmpdir = tempfile.mkdtemp(prefix="easy_install-")
        download = None
        if not self.editable: self.install_site_py()

        try:
            if not isinstance(spec,Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    download = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, download, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable, not self.always_copy,
                self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg+=" (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence==DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)

        finally:
            if os.path.exists(tmpdir):
                rmtree(tmpdir)

def easy_install(self, spec, deps=False):
        if not self.editable:
            self.install_site_py()

        with self._tmpdir() as tmpdir:
            if not isinstance(spec, Requirement):
                if URL_SCHEME(spec):
                    # It's a url, download it to tmpdir and process
                    self.not_editable(spec)
                    dl = self.package_index.download(spec, tmpdir)
                    return self.install_item(None, dl, tmpdir, deps, True)

                elif os.path.exists(spec):
                    # Existing file or directory, just process it directly
                    self.not_editable(spec)
                    return self.install_item(None, spec, tmpdir, deps, True)
                else:
                    spec = parse_requirement_arg(spec)

            self.check_editable(spec)
            dist = self.package_index.fetch_distribution(
                spec, tmpdir, self.upgrade, self.editable,
                not self.always_copy, self.local_index
            )
            if dist is None:
                msg = "Could not find suitable distribution for %r" % spec
                if self.always_copy:
                    msg += " (--always-copy skips system and development eggs)"
                raise DistutilsError(msg)
            elif dist.precedence == DEVELOP_DIST:
                # .egg-info dists don't need installing, just process deps
                self.process_distribution(spec, dist, deps, "Using")
                return dist
            else:
                return self.install_item(spec, dist.location, tmpdir, deps)