pip install apache-airflow 然后在新的虚拟环境中使用 Airflow initdb : SyntaxError

Question

$ virtualenv --version
16.3.0
$ pip --version
pip 19.0.1

我创造了一个新鲜的环境。并运行

pip install apache-airflow

安装成功

apache-airflow   1.10.2 

但后来我运行

 airflow initdb

我得到了错误

ERROR [airflow.models.DagBag] Failed to import: /Users/admin/workshops/apache/airflow/lib/python3.7/site-packages/airflow/example_dags/example_http_operator.py
    Traceback (most recent call last):
      File "/Users/admin/workshops/apache/airflow/lib/python3.7/site-packages/airflow/models.py", line 374, in process_file
        m = imp.load_source(mod_name, filepath)
      File "/Users/admin/workshops/apache/airflow/lib/python3.7/imp.py", line 171, in load_source
        module = _load(spec)
      File "<frozen importlib._bootstrap>", line 696, in _load
      File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 728, in exec_module
      File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
      File "/Users/admin/workshops/apache/airflow/lib/python3.7/site-packages/airflow/example_dags/example_http_operator.py", line 27, in <module>
        from airflow.operators.http_operator import SimpleHttpOperator
      File "/Users/admin/workshops/apache/airflow/lib/python3.7/site-packages/airflow/operators/http_operator.py", line 21, in <module>
        from airflow.hooks.http_hook import HttpHook
      File "/Users/admin/workshops/apache/airflow/lib/python3.7/site-packages/airflow/hooks/http_hook.py", line 23, in <module>
        import tenacity
      File "/Users/admin/workshops/apache/airflow/lib/python3.7/site-packages/tenacity/__init__.py", line 352
        from tenacity.async import AsyncRetrying
                          ^
    SyntaxError: invalid syntax

这是一个全新的虚拟环境。我没有安装任何其他东西。

Answer 1

可以找到 here , async自 Python 3.7 以来已成为关键字。您可以使用 Python < 3.7 创建一个虚拟环境并安装 Airflow。也许你也可以尝试升级 tenacity >=4.10.0，因为在那个版本中解决了韧性问题。