spark-instrumented-optimizer/python
zero323 098f2268e4 [SPARK-33730][PYTHON] Standardize warning types
### What changes were proposed in this pull request?

This PR:

- Adds as small  hierarchy of warnings to be used in PySpark applications. These extend built-in classes and top level `PySparkWarning`.
- Replaces `DeprecationWarnings` (intended for developers) with PySpark specific subclasses of `FutureWarning` (intended for end users).

### Why are the changes needed?

- To be more precise and add users additional control (in addition to standard module level filters) over PySpark warnings handling.
- Correct semantics (at the moment we use `DeprecationWarning` in user-facing API, but it is intended "for warnings about deprecated features when those warnings are intended for other Python developers").

### Does this PR introduce _any_ user-facing change?

Yes. Code can raise different type of warning than before.

### How was this patch tested?

Existing tests.

Closes #30985 from zero323/SPARK-33730.

Authored-by: zero323 <mszymkiewicz@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2021-01-18 09:32:55 +09:00
..
docs [SPARK-34080][ML][PYTHON] Add UnivariateFeatureSelector 2021-01-16 11:09:23 +08:00
lib [SPARK-33984][PYTHON] Upgrade to Py4J 0.10.9.1 2021-01-04 10:23:38 -08:00
pyspark [SPARK-33730][PYTHON] Standardize warning types 2021-01-18 09:32:55 +09:00
test_coverage [SPARK-7721][PYTHON][TESTS] Adds PySpark coverage generation script 2018-01-22 22:12:50 +09:00
test_support Spelling r common dev mlib external project streaming resource managers python 2020-11-27 10:22:45 -06:00
.coveragerc [SPARK-7721][PYTHON][TESTS] Adds PySpark coverage generation script 2018-01-22 22:12:50 +09:00
.gitignore [SPARK-3946] gitignore in /python includes wrong directory 2014-10-14 14:09:39 -07:00
MANIFEST.in [SPARK-32714][PYTHON] Initial pyspark-stubs port 2020-09-24 14:15:36 +09:00
mypy.ini [SPARK-32320][PYSPARK] Remove mutable default arguments 2020-12-08 09:35:36 +08:00
pylintrc [SPARK-32435][PYTHON] Remove heapq3 port from Python 3 2020-07-27 20:10:13 +09:00
README.md [SPARK-30884][PYSPARK] Upgrade to Py4J 0.10.9 2020-02-20 09:09:30 -08:00
run-tests [SPARK-29672][PYSPARK] update spark testing framework to use python3 2019-11-14 10:18:55 -08:00
run-tests-with-coverage [SPARK-26252][PYTHON] Add support to run specific unittests and/or doctests in python/run-tests script 2018-12-05 15:22:08 +08:00
run-tests.py [SPARK-33869][PYTHON][SQL][TESTS] Have a separate metastore directory for each PySpark test job 2020-12-21 11:11:25 -08:00
setup.cfg [SPARK-1267][SPARK-18129] Allow PySpark to be pip installed 2016-11-16 14:22:15 -08:00
setup.py [SPARK-32017][PYTHON][FOLLOW-UP] Rename HADOOP_VERSION to PYSPARK_HADOOP_VERSION in pip installation option 2021-01-05 17:21:32 +09:00

Apache Spark

Spark is a unified analytics engine for large-scale data processing. It provides high-level APIs in Scala, Java, Python, and R, and an optimized engine that supports general computation graphs for data analysis. It also supports a rich set of higher-level tools including Spark SQL for SQL and DataFrames, MLlib for machine learning, GraphX for graph processing, and Structured Streaming for stream processing.

https://spark.apache.org/

Online Documentation

You can find the latest Spark documentation, including a programming guide, on the project web page

Python Packaging

This README file only contains basic information related to pip installed PySpark. This packaging is currently experimental and may change in future versions (although we will do our best to keep compatibility). Using PySpark requires the Spark JARs, and if you are building this from source please see the builder instructions at "Building Spark".

The Python packaging for Spark is not intended to replace all of the other use cases. This Python packaged version of Spark is suitable for interacting with an existing cluster (be it Spark standalone, YARN, or Mesos) - but does not contain the tools required to set up your own standalone Spark cluster. You can download the full version of Spark from the Apache Spark downloads page.

NOTE: If you are using this with a Spark standalone cluster you must ensure that the version (including minor version) matches or you may experience odd errors.

Python Requirements

At its core PySpark depends on Py4J, but some additional sub-packages have their own extra requirements for some features (including numpy, pandas, and pyarrow).