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Warn about unsupported Python 3.10 #19060

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Oct 21, 2021
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Warn about unsupported Python 3.10 #19060

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Warn about unsupported Python 3.10
mik-laj Oct 19, 2021
11f5c44
fixup! Warn about unsupported Python 3.10
mik-laj Oct 19, 2021
522e6ee
Update __main__.py
mik-laj Oct 19, 2021
f690855
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mik-laj Oct 21, 2021
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2 changes: 2 additions & 0 deletions README.md
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Expand Up @@ -98,6 +98,8 @@ MariaDB is not tested/recommended.
**Note**: SQLite is used in Airflow tests. Do not use it in production. We recommend
using the latest stable version of SQLite for local development.

**Note**: Python v3.10 is not supported yet. For details, see. [#19059](https://github.com/apache/airflow/issues/19059)
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## Getting started

Visit the official Airflow website documentation (latest **stable** release) for help with
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3 changes: 2 additions & 1 deletion airflow/__init__.py
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Expand Up @@ -36,7 +36,7 @@

__version__ = version.version

__all__ = ['__version__', 'login', 'DAG', 'PY36', 'PY37', 'PY38', 'PY39']
__all__ = ['__version__', 'login', 'DAG', 'PY36', 'PY37', 'PY38', 'PY39', 'PY310']

# Make `airflow` an namespace package, supporting installing
# airflow.providers.* in different locations (i.e. one in site, and one in user
Expand All @@ -51,6 +51,7 @@
PY37 = sys.version_info >= (3, 7)
PY38 = sys.version_info >= (3, 8)
PY39 = sys.version_info >= (3, 9)
PY310 = sys.version_info >= (3, 10)


def __getattr__(name):
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10 changes: 9 additions & 1 deletion airflow/__main__.py
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Expand Up @@ -19,20 +19,28 @@
# under the License.

"""Main executable module"""

import os
import warnings

import argcomplete

from airflow import PY310
from airflow.cli import cli_parser
from airflow.configuration import conf
from airflow.utils.docs import get_docs_url


def main():
"""Main executable function"""
if conf.get("core", "security") == 'kerberos':
os.environ['KRB5CCNAME'] = conf.get('kerberos', 'ccache')
os.environ['KRB5_KTNAME'] = conf.get('kerberos', 'keytab')
if PY310:
docs_url = get_docs_url('installation/prerequisites.html')
warnings.warn(
"Python v3.10 is not official supported on this version of Airflow. Please be careful. "
f"For details, see: {docs_url}"
)

parser = cli_parser.get_parser()
argcomplete.autocomplete(parser)
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2 changes: 2 additions & 0 deletions docs/apache-airflow/installation/prerequisites.rst
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Expand Up @@ -37,6 +37,8 @@ running multiple schedulers -- please see: :doc:`/concepts/scheduler`. MariaDB i
**Note:** SQLite is used in Airflow tests. Do not use it in production. We recommend
using the latest stable version of SQLite for local development.

**Note**: Python v3.10 is not supported yet. For details, see. `#19059 <https://github.com/apache/airflow/issues/19059>`__
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Starting with Airflow 2.1.2, Airflow is tested with Python 3.6, 3.7, 3.8, and 3.9.

The minimum memory required we recommend Airflow to run with is 4GB, but the actual requirements depends
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