我按照本文中的程序在 WSL（Windows 10）下的 Ubuntu 中安裝了 Airflow 。
但是在運行時airflow db init，我收到以下錯誤：
AttributeError: module 'wtforms.fields' has no attribute 'TextField'
完整的跟蹤：
(airflow_env) sultani@Khalid:~/c/users/administrator/airflowhome$ airflow db init
DB: sqlite:///c/users/administrator/airflowhome/airflow.db
[2022-06-09 00:41:54,760] {db.py:1448} INFO - Creating tables
INFO [alembic.runtime.migration] Context impl SQLiteImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
Traceback (most recent call last):
File "/home/sultani/.local/bin/airflow", line 8, in <module>
sys.exit(main())
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/__main__.py", line 38, in main
args.func(args)
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/cli/cli_parser.py", line 51, in command
return func(*args, **kwargs)
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/cli/commands/db_command.py", line 35, in initdb
db.initdb()
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/utils/session.py", line 71, in wrapper
return func(*args, session=session, **kwargs)
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/utils/db.py", line 648, in initdb
upgradedb(session=session)
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/utils/session.py", line 68, in wrapper
return func(*args, **kwargs)
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/utils/db.py", line 1449, in upgradedb
command.upgrade(config, revision=to_revision or 'heads')
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/command.py", line 322, in upgrade
script.run_env()
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/base.py", line 569, in run_env
util.load_python_file(self.dir, "env.py")
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/util/pyfiles.py", line 94, in load_python_file
module = load_module_py(module_id, path)
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/util/pyfiles.py", line 110, in load_module_py
spec.loader.exec_module(module) # type: ignore
File "<frozen importlib._bootstrap_external>", line 848, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/migrations/env.py", line 107, in <module>
run_migrations_online()
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/migrations/env.py", line 101, in run_migrations_online
context.run_migrations()
File "<string>", line 8, in run_migrations
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/runtime/environment.py", line 853, in run_migrations
self.get_context().run_migrations(**kw)
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/runtime/migration.py", line 611, in run_migrations
for step in self._migrations_fn(heads, self):
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/command.py", line 311, in upgrade
return script._upgrade_revs(revision, rev)
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/base.py", line 443, in _upgrade_revs
for script in reversed(list(revs))
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/revision.py", line 799, in iterate_revisions
revisions, heads = fn(
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/revision.py", line 1426, in _collect_upgrade_revisions
for rev in self._parse_upgrade_target(
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/revision.py", line 1218, in _parse_upgrade_target
return self.get_revisions(target)
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/revision.py", line 529, in get_revisions
resolved_id, branch_label = self._resolve_revision_number(
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/revision.py", line 753, in _resolve_revision_number
self._revision_map
File "/home/sultani/.local/lib/python3.8/site-packages/sqlalchemy/util/langhelpers.py", line 1095, in __get__
obj.__dict__[self.__name__] = result = self.fget(obj)
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/revision.py", line 191, in _revision_map
for revision in self._generator():
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/base.py", line 140, in _load_revisions
script = Script._from_filename(self, vers, file_)
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/script/base.py", line 1013, in _from_filename
module = util.load_python_file(dir_, filename)
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/util/pyfiles.py", line 94, in load_python_file
module = load_module_py(module_id, path)
File "/home/sultani/.local/lib/python3.8/site-packages/alembic/util/pyfiles.py", line 110, in load_module_py
spec.loader.exec_module(module) # type: ignore
File "<frozen importlib._bootstrap_external>", line 848, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/sultani/.local/lib/python3.8/site-packages/airflow/migrations/versions/0073_2_0_0_prefix_dag_permissions.py", line 27, in <module>
from flask_appbuilder import SQLA
File "/home/sultani/.local/lib/python3.8/site-packages/flask_appbuilder/__init__.py", line 6, in <module>
from .base import AppBuilder # noqa: F401
File "/home/sultani/.local/lib/python3.8/site-packages/flask_appbuilder/base.py", line 8, in <module>
from .api.manager import OpenApiManager
File "/home/sultani/.local/lib/python3.8/site-packages/flask_appbuilder/api/manager.py", line 8, in <module>
from flask_appbuilder.baseviews import BaseView
File "/home/sultani/.local/lib/python3.8/site-packages/flask_appbuilder/baseviews.py", line 21, in <module>
from .forms import GeneralModelConverter
File "/home/sultani/.local/lib/python3.8/site-packages/flask_appbuilder/forms.py", line 25, in <module>
from .models.mongoengine.fields import MongoFileField, MongoImageField
File "/home/sultani/.local/lib/python3.8/site-packages/flask_appbuilder/models/mongoengine/fields.py", line 4, in <module>
from ...upload import BS3FileUploadFieldWidget, BS3ImageUploadFieldWidget
File "/home/sultani/.local/lib/python3.8/site-packages/flask_appbuilder/upload.py", line 106, in <module>
class FileUploadField(fields.TextField):
AttributeError: module 'wtforms.fields' has no attribute 'TextField'
uj5u.com熱心網友回復：
不幸的是，您鏈接的博客文章存在很多問題：
它至少有兩個錯誤。首先，變數
/前面缺少一個。AIRFLOW_HOME此外，該博客建議將 your 更改/mnt/c為 simple/c，但隨后繼續使用/mnt/cinAIRFLOW_HOME不起作用。壞建議——一般來說，您不應該將 Windows 驅動器（例如
/mnt/c）用于 WSL2 專案。有性能問題和權限問題需要處理。/不必要的步驟——即使您使用將 Airflow 安裝到 Windows 驅動器的錯誤建議，也絕對沒有理由更改您的 WSL 自動掛載目錄。我建議編輯您的 WSL 組態檔以更改此設定，除非您出于其他原因需要它。從 中洗掉該行。root = //etc/wsl.conf不必要的軟體包和存盤庫——沒有理由添加 Universe，因為它已經存在（并且一直存在）在 WSL Ubuntu 中。沒有理由安裝
software-properties-common或者python-setuptools——它們不是必需的。最糟糕的是，它只是過時和/或與官方檔案沖突。這是您安裝的最大問題——在實際安裝程序中您會看到一個錯誤，即存在不兼容的軟體包版本。
因此，讓我推薦以下組合：
- Python 最佳實踐——該博客在某種程度上確實做到了這一點，使用虛擬環境來避免污染通用 Python 系統包。
- WSL2 最佳實踐——你真的可以按照上面鏈接的官方檔案進行操作。博客文章只是一個糟糕的方法。
- 官方檔案。
如果您沒有將它用于其他任何事情，您可能只想洗掉您的 Ubuntu WSL2 安裝并重新開始。我從一個干凈的 Ubuntu 20.04 WSL2 安裝開始來演示這一點：
sudo apt update && sudo apt upgrade -y
sudo apt install python3-pip python3-venv
mkdir -p ~/airflow/airflowhome
python3 -m venv ~/airflow/airflowenv
source ~/airflow/airflowenv/bin/activate
# Your prompt will change to "airflowenv"
pip3 install wheel # Not found in venv by default, but recommended for packages
此時，我們直接從Apache Airflow 檔案開始作業，除了輕微的目錄更改之外沒有任何實質性的更改：
export AIRFLOW_HOME=~/airflow/airflowhome
AIRFLOW_VERSION=2.3.2
PYTHON_VERSION="$(python --version | cut -d " " -f 2 | cut -d "." -f 1-2)"
CONSTRAINT_URL="https://raw.githubusercontent.com/apache/airflow/constraints-${AIRFLOW_VERSION}/constraints-${PYTHON_VERSION}.txt"
pip install "apache-airflow==${AIRFLOW_VERSION}" --constraint "${CONSTRAINT_URL}"
仔細觀察輸出。您應該在那里看不到任何錯誤——之前使用博客說明的嘗試顯示了紅色文本錯誤，提前指出了問題。
現在：
airflow standalone
這將啟動服務器。正如醫生所說，密切注意螢屏上的最后幾行。它將列出您的管理員用戶名和密碼。您可以使用它通過您的 Windows 網路瀏覽器登錄http://localhost:8080。
您仍然可以將export AIRFLOW_HOME陳述句添加到您的~/.bashrc，但是由于您每次都需要激活 venv ，因此最好只是這樣做。所以下次運行它，你會：
source ~/airflow/airflowenv/bin/activate
export AIRFLOW_HOME=~/airflow/airflowhome
airflow standalone
注意：無論何時source ~/airflow/airflowenv/bin/activate，您都將處于 Python 虛擬環境中。此時要回傳默認的 Python 系統環境，只需運行deactivate.
我自己不是 Airflow 用戶，因此我無法為您提供更多幫助。但這些是至少在 WSL2 Ubuntu 上對我有用的步驟，以使其啟動并運行。
uj5u.com熱心網友回復：
感謝您的回復，提供的博客中有幾個問題，我設法在本地運行氣流。
- / 在 C 之前丟失，路徑必須更改為 AIRFLOW_HOME=/c/users/YOURNAME/airflowhome 。
- 我必須從https://pypi.org/project/apache-airflow/安裝氣流， 其余步驟都很好。
因為我是氣流新手，所以我現在需要在 pycharm 中修復一些其他問題，當我在 dag 檔案夾中創建 dag 檔案時，它會丟失依賴項。
轉載請註明出處，本文鏈接：https://www.uj5u.com/yidong/490454.html