Re: Python3 and sensors module
Snakebite is not py3 compatible. We should move to libhdfs. Happy to take patches!
Verstuurd vanaf mijn iPad
> Op 16 mei 2018 om 18:57 heeft Cindy Rottinghuis <cindyrottinghuis@xxxxxxxxx> het volgende geschreven:
> Here is a sample of what I am seeing.
> I am running on ubuntu, python 3.5. This is a subset of the full message. Once it went into the snakebite package, checked and the library wasn’t supported in python3.
> File "/usr/local/airflow/dags/dim_date.py", line 5, in <module>
> from airflow.operators.sensors import S3KeySensor
> File "/usr/local/lib/python3.5/dist-packages/airflow/operators/sensors.py", line 34, in <module>
> from airflow.hooks.hdfs_hook import HDFSHook
> File "/usr/local/lib/python3.5/dist-packages/airflow/hooks/hdfs_hook.py", line 20, in <module>
> from snakebite.client import Client, HAClient, Namenode, AutoConfigClient
> File "/usr/local/lib/python3.5/dist-packages/snakebite/client.py", line 1473
> baseTime = min(time * (1L << retries), cap);
>> On May 16, 2018, at 9:24 AM, Cindy Rottinghuis <cindyrottinghuis@xxxxxxxxx> wrote:
>> Yes, it looks like all of the other sensors will work under Python3, but not hdfs. I am planning to use the s3 sensor, which is wrapped up in the sensors.py module. My issue is that when I test my dag or airflow installation under python3, I get errors about the hdfs_hook, which I’m not using. Other then creating my own version of the sensors.py file and removing the hdfs related functions/libraries, is there any thing else I can do to work around this?
>>> On May 16, 2018, at 1:33 AM, Driesprong, Fokko <fokko@xxxxxxxxxxxxxx> wrote:
>>> Hi Cindy,
>>> The other sensors should work under Python3. We try to support Python3 as
>>> much as possible, but sometimes libraries are used that are not compatible.
>>> Could you describe what you are running into?
>>> Cheers, Fokko
>>> 2018-05-16 5:36 GMT+02:00 Cindy Rottinghuis <cindyrottinghuis@xxxxxxxxx>:
>>>> Are there any plans to update the HDFS_hook.py script to remove the
>>>> reference to the snakebite python library? I’d like to run airflow on
>>>> python3, and this is causing some issues. The hdfs_hook script is
>>>> referenced in the sensors module.
>>>> Any suggestions?