import KubernetesPodOperator is not working

[sakaia]

I am trying to run the following file. but it failed. Any Idea to solve this.

create trouble.py

# Airflow DAG Definition: Kubernetes

from airflow.contrib.operators.kubernetes_pod_operator import KubernetesPodOperator

store trouble.py ~/airflow/dags
$ airflow list_dags

$ airflow list_dags
The 'list_dags' command is deprecated and removed in Airflow 2.0, please use 'dags list', or 'dags report' instead
[2021-01-22 09:15:23,101] {__init__.py:50} INFO - Using executor SequentialExecutor
[2021-01-22 09:15:23,102] {dagbag.py:417} INFO - Filling up the DagBag from /home/sakaia/airflow/dags
[2021-01-22 09:15:23,289] {dagbag.py:259} ERROR - Failed to import: /home/sakaia/airflow/dags/trouble.py
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/airflow/models/dagbag.py", line 256, in process_file
    m = imp.load_source(mod_name, filepath)
  File "/usr/lib/python3.6/imp.py", line 172, in load_source
    module = _load(spec)
  File "<frozen importlib._bootstrap>", line 684, in _load
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/sakaia/airflow/dags/trouble.py", line 3, in <module>
    from airflow.contrib.operators.kubernetes_pod_operator import KubernetesPodOperator
  File "/usr/local/lib/python3.6/dist-packages/airflow/contrib/operators/kubernetes_pod_operator.py", line 24, in <module>
    from airflow.kubernetes import kube_client, pod_generator, pod_launcher
  File "/usr/local/lib/python3.6/dist-packages/airflow/kubernetes/kube_client.py", line 25, in <module>
    from kubernetes import config, client
  File "/usr/local/lib/python3.6/dist-packages/kubernetes/__init__.py", line 20, in <module>
    import kubernetes.config
  File "/usr/local/lib/python3.6/dist-packages/kubernetes/config/__init__.py", line 17, in <module>
    from .kube_config import (list_kube_config_contexts, load_kube_config,
  File "/usr/local/lib/python3.6/dist-packages/kubernetes/config/kube_config.py", line 33, in <module>
    from requests_oauthlib import OAuth2Session
  File "/usr/local/lib/python3.6/dist-packages/requests_oauthlib/__init__.py", line 12, in <module>
    if requests.__version__ < "2.0.0":
TypeError: '<' not supported between instances of 'module' and 'str'

the version of airflow is follows

1.10.14

Linux Version is

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.5 LTS
Release:        18.04
Codename:       bionic

kubectl version is also working

Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.5", GitCommit:"e6503f8d8f769ace2f338794c914a96fc335df0f", GitTreeState:"clean", BuildDate:"2020-06-26T03:47:41Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.5", GitCommit:"e6503f8d8f769ace2f338794c914a96fc335df0f", GitTreeState:"clean", BuildDate:"2020-06-26T03:39:24Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}

[potiuk]

You probably have wrong version of requests library. PLease make sure to install airflow in the way described in the documentation (with constraints) http://airflow.apache.org/docs/apache-airflow/stable/installation.html

For python 3.6 requests should be 2.23.0

https://github.com/apache/airflow/blob/constraints-1.10.14/constraints-3.6.txt

[sakaia]

When I digging it, It seems requests module error.

requests/requests-oauthlib#373

[sakaia]

I tentatively skip version check.