Question

尝试运行ImportError: cannot import name 'flash'命令时，我总是遇到错误airflow webserver。

已安装了各种软件包，包括flask-login，flask，flask-cache，flask-wtf等。这是在没有Internet连接的服务器上，我不得不手动传输这些软件包并运行conda install <package> --offline

完整追溯

/usr/local/anaconda/lib/python3.6/site-packages/flask_cache/jinja2ext.py:33: ExtDeprecationWarning: Importing flask.ext.cache is deprecated, use flask_cache instead.
  from flask.ext.cache import make_template_fragment_key
Traceback (most recent call last):
  File "/usr/local/anaconda/bin/airflow", line 27, in <module>
    args.func(args)
  File "/usr/local/anaconda/lib/python3.6/site-packages/airflow/bin/cli.py", line 678, in webserver
    app = cached_app(conf)
  File "/usr/local/anaconda/lib/python3.6/site-packages/airflow/www/app.py", line 161, in cached_app
    app = create_app(config)
  File "/usr/local/anaconda/lib/python3.6/site-packages/airflow/www/app.py", line 59, in create_app
    from airflow.www import views
  File "/usr/local/anaconda/lib/python3.6/site-packages/airflow/www/views.py", line 46, in <module>
    from flask_login import flash
ImportError: cannot import name 'flash'

谢谢。

Answer 1

正如我在评论中所写，python库flask-login没有名为flash的模块或函数。因此，您无法编写代码，该代码位于views.py中的第46行：

from flask-login import flash

但是，该函数存在于python库flask中。因此更改为：

from flask import flash

Python 3.6 Flask ImportError：无法导入名称“ flash”

1 个答案: