在具有Python 2.7默认版本的Ubuntu 16.04上，我正在尝试安装Apache airflow，但遇到了几个问题，目前我看到
apache initdb
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 21, in <module>
from airflow import configuration
File "/usr/local/lib/python2.7/dist-packages/airflow/__init__.py", line 40, in <module>
from flask_admin import BaseView
File "/usr/local/lib/python2.7/dist-packages/flask_admin/__init__.py", line 6, in <module>
from .base import expose, expose_plugview, Admin, BaseView, AdminIndexView # noqa: F401
File "/usr/local/lib/python2.7/dist-packages/flask_admin/base.py", line 6, in <module>
from flask import Blueprint, current_app, render_template, abort, g, url_for
File "/usr/local/lib/python2.7/dist-packages/flask/__init__.py", line 20, in <module>
from .app import Flask
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 69, in <module>
from …