You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@airflow.apache.org by "gopidesupavan (via GitHub)" <gi...@apache.org> on 2025/03/29 07:12:40 UTC
[PR] Fix xcom_pull error when value is dataframe type [airflow]
gopidesupavan opened a new pull request, #48526:
URL: https://github.com/apache/airflow/pull/48526
Tested with
```
from airflow.decorators import dag, task
@dag
def serial_panda():
@task
def my_task():
import pandas as pd
df = pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]})
return df
@task
def my_task_2(df):
print(df)
my_task_2(my_task())
serial_panda()
```
<img width="1558" alt="image" src="https://github.com/user-attachments/assets/1e5a299e-7c2b-45d6-bbe0-337efbd9597d" />
<img width="1480" alt="image" src="https://github.com/user-attachments/assets/518993ef-60af-4288-90f2-97f0506c3731" />
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<!--
Thank you for contributing! Please make sure that your code changes
are covered with tests. And in case of new features or big changes
remember to adjust the documentation.
Feel free to ping committers for the review!
In case of an existing issue, reference it using one of the following:
closes: #ISSUE
related: #ISSUE
How to write a good git commit message:
http://chris.beams.io/posts/git-commit/
-->
<!-- Please keep an empty line above the dashes. -->
---
**^ Add meaningful description above**
Read the **[Pull Request Guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#pull-request-guidelines)** for more information.
In case of fundamental code changes, an Airflow Improvement Proposal ([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvement+Proposals)) is needed.
In case of a new dependency, check compliance with the [ASF 3rd Party License Policy](https://www.apache.org/legal/resolved.html#category-x).
In case of backwards incompatible changes please leave a note in a newsfragment file, named `{pr_number}.significant.rst` or `{issue_number}.significant.rst`, in [airflow-core/newsfragments](https://github.com/apache/airflow/tree/main/airflow-core/newsfragments).
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscribe@airflow.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
Re: [PR] Fix xcom_pull error when value is dataframe type [airflow]
Posted by "amoghrajesh (via GitHub)" <gi...@apache.org>.
amoghrajesh commented on code in PR #48526:
URL: https://github.com/apache/airflow/pull/48526#discussion_r2019775608
##########
task-sdk/src/airflow/sdk/execution_time/task_runner.py:
##########
@@ -343,7 +343,10 @@ def xcom_pull(
map_index=m_idx,
include_prior_dates=include_prior_dates,
)
- xcoms.append(value if value else default)
+ if value is None:
+ xcoms.append(default)
+ else:
+ xcoms.append(value)
Review Comment:
Anyways, good catch!
##########
task-sdk/src/airflow/sdk/execution_time/task_runner.py:
##########
@@ -343,7 +343,10 @@ def xcom_pull(
map_index=m_idx,
include_prior_dates=include_prior_dates,
)
- xcoms.append(value if value else default)
+ if value is None:
+ xcoms.append(default)
+ else:
+ xcoms.append(value)
Review Comment:
Very interesting that this could cause breakage!
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscribe@airflow.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
Re: [PR] Fix xcom_pull error when value is dataframe type [airflow]
Posted by "gopidesupavan (via GitHub)" <gi...@apache.org>.
gopidesupavan commented on PR #48526:
URL: https://github.com/apache/airflow/pull/48526#issuecomment-2763222911
Pandas df condition check is slightly different behaviour.
<img width="1293" alt="image" src="https://github.com/user-attachments/assets/c6249a2b-7b8e-422e-8d53-2ccfd8e731ab" />
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscribe@airflow.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
Re: [PR] Fix xcom_pull error when value is dataframe type [airflow]
Posted by "amoghrajesh (via GitHub)" <gi...@apache.org>.
amoghrajesh merged PR #48526:
URL: https://github.com/apache/airflow/pull/48526
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscribe@airflow.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org