| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # |
| |
| """ |
| Authentication is implemented using flask_login and different environments can |
| implement their own login mechanisms by providing an `airflow_login` module |
| in their PYTHONPATH. airflow_login should be based off the |
| `airflow.www.login` |
| |
| isort:skip_file |
| """ |
| |
| # flake8: noqa: F401 |
| # pylint: disable=wrong-import-position |
| import sys |
| from typing import Callable, Optional |
| |
| from airflow import settings |
| from airflow import version |
| |
| __version__ = version.version |
| |
| __all__ = ['__version__', 'login', 'DAG'] |
| |
| # Make `airflow` an namespace package, supporting installing |
| # airflow.providers.* in different locations (i.e. one in site, and one in user |
| # lib.) |
| __path__ = __import__("pkgutil").extend_path(__path__, __name__) # type: ignore |
| |
| settings.initialize() |
| |
| login: Optional[Callable] = None |
| |
| PY37 = sys.version_info >= (3, 7) |
| PY38 = sys.version_info >= (3, 8) |
| |
| |
| def __getattr__(name): |
| # PEP-562: Lazy loaded attributes on python modules |
| if name == "DAG": |
| from airflow.models.dag import DAG # pylint: disable=redefined-outer-name |
| |
| return DAG |
| if name == "AirflowException": |
| from airflow.exceptions import AirflowException # pylint: disable=redefined-outer-name |
| |
| return AirflowException |
| raise AttributeError(f"module {__name__} has no attribute {name}") |
| |
| |
| if not settings.LAZY_LOAD_PLUGINS: |
| from airflow import plugins_manager |
| |
| plugins_manager.ensure_plugins_loaded() |
| |
| if not settings.LAZY_LOAD_PROVIDERS: |
| from airflow import providers_manager |
| |
| providers_manager.ProvidersManager().initialize_providers_manager() |
| |
| |
| # This is never executed, but tricks static analyzers (PyDev, PyCharm, |
| # pylint, etc.) into knowing the types of these symbols, and what |
| # they contain. |
| STATICA_HACK = True |
| globals()['kcah_acitats'[::-1].upper()] = False |
| if STATICA_HACK: # pragma: no cover |
| from airflow.models.dag import DAG |
| from airflow.exceptions import AirflowException |
| |
| |
| if not PY37: |
| from pep562 import Pep562 |
| |
| Pep562(__name__) |