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Python Engine Changelog

v11 (2025-10-16) - Backend supported version: 15.0

Python engine version supporting 15.0 backend, with added libraries and updated major versions of dependencies.

Added

  • Python libraries:

    • gaminet

    • interpret

    • polars

  • Added pricingscience.winrate

  • push_pandas method has new optional parameters manual_fields_specs and keep_index. Former one allows to specify FieldTypes for columns. see FieldSpec documentation in pyfx.internal.pandasutil for more details.

Changed

  • Image is built from ubuntu 24.04 (previously 22.04)

  • Python version is changed to version python 3.12 (previously 3.10)

  • Bugfixed retry on retryable errors in push_pandas and update_pandas, removed retry from push and update methods

  • endpoint utilized by update and update_pandas changed from datamart.importfile to datamart.loadfc

  • Multiple packages with update of major version:

    • lightgbm

    • neuralprophet

    • optuna

    • pandas

    • sentence-transformers

    • SQLAlchemy

    • xgboost

Removed

  • eli5 library was removed, as project is no longer developed

v10 (2024-4-2) - Backend supported version: 12.0

Python engine version supporting Clover Club 12.0.X backend, with updated minor versions of dependencies

Changed

  • Updated minor versions of dependencies

v9 (2024-03-01) - Backend supported version: 11.1

This is the official version supporting Bee’s Knees 11.1 backend.

It replaces the faulty append_xxx methods with more accurate update_xxx.

These methods were relying on a REST API endpoint with a silent faulty behavior regarding duplicate keys columns. They could replace data instead of appending them if usage of unique keys/index was not handled.

Support for the methods is removed immediately as the faulty behavior is hard to detect, easy to trigger and impossible to fix properly.

Users should switch to the corresponding update_xxx methods introduced in this release.

Documentation now available at https://developer.pricefx.eu/pricefx-api/.

pricingscience.similarity has been improved.

Added

  • Added data updating methods

  • connection.update_table

  • TableMutable.update

  • TableMutable.update_pandas

  • Added pricingscience.similarity.process_new_products

  • Official documentation deployment

Changed

  • Updated dependencies

Removed

  • The following methods from the API (replaced with the corresponding update_xxx methods) have been removed:

    • connection.append_to_table

    • TableMutable.append

    • TableMutable.append_pandas

v8 (2023-07-20) - Backend supported version: 11.0

Official version supporting Bee Knees 11.0.X backend.

This release adds the new pricingscience.similarity module.

Added

  • Add pricingscience.similarity

  • Add inflect library to neural image

Changed

  • Updated dependencies

  • Improved error handling from backend

v7 (2023-05-25) - Backend supported version: 10.3

This release changes 'importance' function from 'feature_selection' by adding a reliability measure.

This release adds the pricingscience.clustering module, providing hierarchical clustering features.

Added

  • Add pricingscience.clustering

Changed

  • importance now returns a tuple[importance, reliability_measure].

v6 (2023-05-02) - Backend supported version: 10.3

Official version supporting Bee’s Knees 10.3.x backend.

v5 (2023-04-18) - Backend supported version: 10.2

Official version supporting Bee’s Knees 10.2.x backend.

Added

  • Added leidenalg library to datascience and neural images

  • Added umap-learn library to datascience and neural images

  • Added BERTopic library to neural images

v4 (2023-02-27) - Backend supported version: 10.1

Official version supporting Bee’s Knees 10.1.x backend.

Added

  • push_pandas method now supports the optional column_labels parameter.

  • Added dython library to datascience and neural images.

  • Added optuna library to datascience and neural images.

  • Added igraph library to datascience and neural images.

Changed

  • Bump version of werkzeug package.

v3 (2023-01-31) - Backend supported version: 10.0

Official version supporting Bee’s Knees 10.0.x backend. No addition or change since v2.

v2 (2023-01-24) - Backend supported version: 9.4

This release upgrades Python version to 3.10 and changes the API vocabulary to be more consistent with the backend one. This is a major breaking change.

Added

  • Data Source, Datamarts, Model tables and Model attachments collection can now be indexed by name or by index (MR45).
     pfx.get_context().datasources().get_by_name("my_data_source") can now be written pfx.get_context().datasources()["my_data_source"]

  • pynndescent library to datascience and neural images (MR51).

Changed

  • Uses Python 3.10 (MR48).

  • Improved backend vocabulary consistency by renaming API parameters.
    Warning: this involves many breaking changes if you were referring to these parameters by name when calling the corresponding methods (MR38).

    • Mainly id or uniqueid renamed to typedid and jst renamed to jst_id when relevant.

    • Refer to the API documentation for more information.

  • When a backend exception occurs, the entire exception stack trace is printed in the job messages instead of the exception message only (MR47).

v1 (2022-12-20) - Backend supported version: 9.4

First version of the pricefx-python-engine.