def install_pip(self, package, save=True, save_dev=False):
        """Installs a pip package.

        :param save: if `True`, pins the package to the Hydrogen requirements
            YAML file.
        :param save_dev: if `True`, pins the package as a development
            dependency to the Hydrogen requirements YAML file.
        :param return: a **single** :class:`Requirement` object, representing
            the installed version of the given package.
        """
        requirement = Requirement.coerce(package)
        click.echo("pip install " + requirement.package)
        cmd = envoy.run("pip install {}".format(str(requirement)))
        if cmd.status_code == 0:
            installed_packages = get_installed_pypackages()
            package = installed_packages[requirement.package]
            requirement.version = "=={}".format(package.version)
            if save:
                self.requirements["all"].add(requirement)
            if save_dev:
                self.requirements["dev"].add(requirement)
            if save or save_dev:
                self.requirements.save()
            return requirement
        else:
            fatal(cmd.std_err)
def get_active_users():
	data = frappe.db.sql("""select name,
		(select count(*) from tabSessions where user=tabUser.name
			and timediff(now(), lastupdate) < time("01:00:00")) as has_session
	 	from tabUser
		where enabled=1 and
		ifnull(user_type, '')!='Website User' and
		name not in ({})
		order by first_name""".format(", ".join(["%s"]*len(STANDARD_USERS))), STANDARD_USERS, as_dict=1)

	# make sure current user is at the top, using has_session = 100
	users = [d.name for d in data]

	if frappe.session.user in users:
		data[users.index(frappe.session.user)]["has_session"] = 100

	else:
		# in case of administrator
		data.append({"name": frappe.session.user, "has_session": 100})

	return data