[
https://issues.apache.org/jira/browse/AIRFLOW-450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16052950#comment-16052950
]
Jonathan Underwood commented on AIRFLOW-450:
--------------------------------------------
I don't think this is resolved, is it? The PR was closed, but no code seems to
have been committed.
In any case, this is still broken in 1.8.1, which breaks `airflow initdb` on a
fresh install with python 3.5:
```
$ airflow initdb
[2017-06-17 20:00:03,284] {__init__.py:57} INFO - Using executor
SequentialExecutor
DB: sqlite:////opt/airflow/airflow/airflow.db
[2017-06-17 20:00:03,615] {db.py:287} INFO - Creating tables
INFO [alembic.runtime.migration] Context impl SQLiteImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.runtime.migration] Running upgrade -> e3a246e0dc1, current
schema
INFO [alembic.runtime.migration] Running upgrade e3a246e0dc1 -> 1507a7289a2f,
create is_encrypted
/opt/airflow/lib64/python3.5/site-packages/alembic/util/messaging.py:69:
UserWarning: Skipping unsupported ALTER for creation of implicit constraint
warnings.warn(msg)
INFO [alembic.runtime.migration] Running upgrade 1507a7289a2f -> 13eb55f81627,
maintain history for compatibility with earlier migrations
INFO [alembic.runtime.migration] Running upgrade 13eb55f81627 -> 338e90f54d61,
More logging into task_isntance
INFO [alembic.runtime.migration] Running upgrade 338e90f54d61 -> 52d714495f0,
job_id indices
INFO [alembic.runtime.migration] Running upgrade 52d714495f0 -> 502898887f84,
Adding extra to Log
INFO [alembic.runtime.migration] Running upgrade 502898887f84 -> 1b38cef5b76e,
add dagrun
INFO [alembic.runtime.migration] Running upgrade 1b38cef5b76e -> 2e541a1dcfed,
task_duration
INFO [alembic.runtime.migration] Running upgrade 2e541a1dcfed -> 40e67319e3a9,
dagrun_config
INFO [alembic.runtime.migration] Running upgrade 40e67319e3a9 -> 561833c1c74b,
add password column to user
INFO [alembic.runtime.migration] Running upgrade 561833c1c74b -> 4446e08588,
dagrun start end
INFO [alembic.runtime.migration] Running upgrade 4446e08588 -> bbc73705a13e,
Add notification_sent column to sla_miss
INFO [alembic.runtime.migration] Running upgrade bbc73705a13e -> bba5a7cfc896,
Add a column to track the encryption state of the 'Extra' field in connection
INFO [alembic.runtime.migration] Running upgrade bba5a7cfc896 -> 1968acfc09e3,
add is_encrypted column to variable table
INFO [alembic.runtime.migration] Running upgrade 1968acfc09e3 -> 2e82aab8ef20,
rename user table
INFO [alembic.runtime.migration] Running upgrade 2e82aab8ef20 -> 211e584da130,
add TI state index
INFO [alembic.runtime.migration] Running upgrade 211e584da130 -> 64de9cddf6c9,
add task fails journal table
INFO [alembic.runtime.migration] Running upgrade 64de9cddf6c9 -> f2ca10b85618,
add dag_stats table
INFO [alembic.runtime.migration] Running upgrade f2ca10b85618 -> 4addfa1236f1,
Add fractional seconds to mysql tables
INFO [alembic.runtime.migration] Running upgrade 4addfa1236f1 -> 8504051e801b,
xcom dag task indices
INFO [alembic.runtime.migration] Running upgrade 8504051e801b -> 5e7d17757c7a,
add pid field to TaskInstance
INFO [alembic.runtime.migration] Running upgrade 5e7d17757c7a -> 127d2bf2dfa7,
Add dag_id/state index on dag_run table
ERROR [airflow.models.DagBag] Failed to import:
/opt/airflow/lib64/python3.5/site-packages/airflow/example_dags/example_http_operator.py
Traceback (most recent call last):
File "/opt/airflow/lib64/python3.5/site-packages/airflow/models.py", line
264, in process_file
m = imp.load_source(mod_name, filepath)
File "/opt/rh/rh-python35/root/usr/lib64/python3.5/imp.py", line 172, in
load_source
module = _load(spec)
File "<frozen importlib._bootstrap>", line 693, in _load
File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 662, in exec_module
File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
File
"/opt/airflow/lib64/python3.5/site-packages/airflow/example_dags/example_http_operator.py",
line 20, in <module>
from airflow.operators.sensors import HttpSensor
File
"/opt/airflow/lib64/python3.5/site-packages/airflow/operators/sensors.py", line
32, in <module>
from airflow.hooks.hdfs_hook import HDFSHook
File "/opt/airflow/lib64/python3.5/site-packages/airflow/hooks/hdfs_hook.py",
line 20, in <module>
from snakebite.client import Client, HAClient, Namenode, AutoConfigClient
File "/opt/airflow/lib64/python3.5/site-packages/snakebite/client.py", line
1473
baseTime = min(time * (1L << retries), cap);
^
SyntaxError: invalid syntax
Done.
```
> example dag "example_http_operator" compatible issue with Python 3
> ------------------------------------------------------------------
>
> Key: AIRFLOW-450
> URL: https://issues.apache.org/jira/browse/AIRFLOW-450
> Project: Apache Airflow
> Issue Type: Bug
> Components: docs
> Affects Versions: Airflow 1.7.1
> Reporter: Lai Qiang Ding
> Assignee: Lai Qiang Ding
> Priority: Minor
> Fix For: Airflow 2.0
>
>
> it reports error when running the example "example_http_operator" under
> python3
> lding-mbp:~ wjo1212$ airflow run example_http_operator http_sensor_check
> 2016-08-04
> {code}
> [2016-08-20 20:44:36,687] {__init__.py:36} INFO - Using executor
> SequentialExecutor
> Sending to executor.
> [2016-08-20 20:44:37,829] {__init__.py:36} INFO - Using executor
> SequentialExecutor
> Logging into:
> /Users/wjo1212/airflow/logs/example_http_operator/http_sensor_check/2016-08-04T00:00:00
> [2016-08-20 20:44:39,081] {__init__.py:36} INFO - Using executor
> SequentialExecutor
> /Users/wjo1212/python3_study/lib/python3.4/site-packages/requests/packages/urllib3/connectionpool.py:838:
> InsecureRequestWarning: Unverified HTTPS request is being made. Adding
> certificate verification is strongly advised. See:
> https://urllib3.readthedocs.io/en/latest/security.html
> InsecureRequestWarning)
> Traceback (most recent call last):
> File "/Users/wjo1212/python3_study/bin/airflow", line 15, in <module>
> args.func(args)
> File
> "/Users/wjo1212/python3_study/lib/python3.4/site-packages/airflow/bin/cli.py",
> line 237, in run
> pool=args.pool,
> File
> "/Users/wjo1212/python3_study/lib/python3.4/site-packages/airflow/utils/db.py",
> line 53, in wrapper
> result = func(*args, **kwargs)
> File
> "/Users/wjo1212/python3_study/lib/python3.4/site-packages/airflow/models.py",
> line 1245, in run
> result = task_copy.execute(context=context)
> File
> "/Users/wjo1212/python3_study/lib/python3.4/site-packages/airflow/operators/sensors.py",
> line 56, in execute
> while not self.poke(context):
> File
> "/Users/wjo1212/python3_study/lib/python3.4/site-packages/airflow/operators/sensors.py",
> line 514, in poke
> return self.response_check(response)
> File
> "/Users/wjo1212/python3_study/lib/python3.4/site-packages/airflow/example_dags/example_http_operator.py",
> line 72, in <lambda>
> response_check=lambda response: True if "Google" in response.content else
> False,
> TypeError: 'str' does not support the buffer interface
> {code}
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