[SPARK-19467] PySpark ML shouldn't use circular imports

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0, 2.1.0, 2.2.0
• Fix Version/s: 2.2.0
• Component/s: ML, PySpark
• Assignee: Maciej Szymkiewicz
• Reporter: Maciej Szymkiewicz
• Created: 06/Feb/17 00:01
• Updated: 07/Feb/17 02:12
• Resolved: 07/Feb/17 02:12

Description

pyspark.ml and pyspark.ml.pipeline contain circular imports with the former one:

from pyspark.ml.pipeline import Pipeline, PipelineModel

and the latter one:

from pyspark.ml import Estimator, Model, Transformer

This is unnecessary and can cause failures when working with external tools.

Issue Links

• links to: [Github] Pull Request #16814 (zero323)