Apache Airflow initdb 无法在 AWS EC2 上运行

Question

我正在尝试在 aws ec2（ubuntu 18.04）上设置 apache 气流

Python 版本：3.6.9 点子版本：9.0.1

要安装 Apache Airflow，我使用了以下命令。

pip3 install apache-airflow[postgres,celery,rabbitmq,ldap,crypto,aws]

当我执行airflow initdb它时显示错误

  File "/home/ubuntu/.local/bin/airflow", line 26, in <module>

    from airflow.bin.cli import CLIFactory

  File "/home/ubuntu/.local/lib/python3.6/site-packages/airflow/bin/cli.py", line 71, in <module>

    from airflow.www_rbac.app import cached_app as cached_app_rbac

  File "/home/ubuntu/.local/lib/python3.6/site-packages/airflow/www_rbac/app.py", line 28, in <module>

    from flask_appbuilder import AppBuilder, SQLA

  File "/home/ubuntu/.local/lib/python3.6/site-packages/flask_appbuilder/__init__.py", line 6, in <module>

    from .base import AppBuilder  # noqa: F401

  File "/home/ubuntu/.local/lib/python3.6/site-packages/flask_appbuilder/base.py", line 8, in <module>

    from .api.manager import OpenApiManager

  File "/home/ubuntu/.local/lib/python3.6/site-packages/flask_appbuilder/api/manager.py", line 7, in <module>

    from flask_appbuilder.baseviews import BaseView

  File "/home/ubuntu/.local/lib/python3.6/site-packages/flask_appbuilder/baseviews.py", line 21, in <module>

    from .forms import GeneralModelConverter

  File "/home/ubuntu/.local/lib/python3.6/site-packages/flask_appbuilder/forms.py", line 17, in <module>

    from .fieldwidgets import (

  File "/home/ubuntu/.local/lib/python3.6/site-packages/flask_appbuilder/fieldwidgets.py", line 3, in <module>

    from wtforms.widgets import html_params, HTMLString

ImportError: cannot import name 'HTMLString'

有人可以帮我吗？

Answer 1

我按照提到的步骤&nbsp;https://github.com/apache/airflow/issues/8506#issuecomment-617515743并在我的 pip install 命令之后添加 --constraint&nbsp;https://raw.githubusercontent.com/apache/airflow/1.10.10/requirements/requirements-python3.7.txt并且它开始工作了。WTForms 新版本出现错误