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bw2data Changelog

4.0.DEV43 (2024-06-18)

  • Add biosphere node default labels
  • Add labels into __init__ namespace

4.0.DEV42 (2024-06-08)

  • Fix some packaging bugs
  • Fix some missing imports

4.0.DEV41 (2024-06-07)

  • Update packaging
  • Migrate from pyfilesystem2 to fsspec

4.0.DEV40 (2024-06-05)

  • Add get_multilca_data_objs function

4.0.DEV39 (2024-05-29)

4.0.DEV38 (2024-05-14)

  • Use rapidfuzz library for faster typo checks

4.0.DEV37 (2024-05-12)

  • Add ability to skip typo checks for speed boost of large, known good, imports

4.0.DEV36 (2024-05-11)

4.0.DEV35 (2023-11-24)

  • Prevent false positives cases where incorrect key is substr of valid key in _check_keys function
  • Implement test cases for valid exchange key and type in exchange_proxy.py
  • Add numpy docstrings in typos
  • Add numpy docstrings in proxies.save function

4.0.DEV34 (2023-11-21)

  • Implement ecoinvent_interface to compare strings

4.0.DEV33 (2023-11-14)

  • Add projects.change_base_directories
  • Update test decorator to use projects.change_base_directories

4.0.DEV32 (2023-10-12)

  • Fix a bug in IOTable.write function

4.0.DEV31 (2023-10-10)

  • Fix a missing test clause for optional dependencies

4.0.DEV30 (2023-10-10)

  • Add warnings for common activity and exchange typos

4.0.DEV29 (2023-09-18)

4.0.DEV28 (2023-09-17)

  • Make adding data to search index optional when writing

4.0.DEV27 (2023-09-17)

  • Fix bug from withdrawn DEV22-24 line

4.0.DEV26 (2023-09-17)

  • Allow writing databases without touching search index

4.0.DEV25 (2023-09-15)

  • Remove requests for easier WASM packaging

4.0.DEV21 (2023-08-12)

  • #140: Search for single characters
  • Purge pyprind and psutil

4.0.DEV20 (2023-07-25)

  • Remove fasteners and write locks
  • Remove docopt and bw2-uptodate.py
  • Substitute platformdirs for appdirs
  • Remove psutil dependency

4.0.DEV19 (2023-06-06)

  • Yanked due to insufficient testing and documentation

4.0.DEV18 (2022-08-19)

  • Add Exchanges.to_dataframe

4.0.DEV17 (2022-08-18)

4.0.DEV16 (2022-06-09)

  • Fix and test export CSV metadata from databases during datapackage creation

4.0.DEV15 (2022-06-04)

  • Improve lookup of activity classifications and properties

4.0.DEV14 (2022-05-23)

  • Add Activity.rp_exchange for easier access to reference product exchange
  • Activity['foo'] will now also lookup reference product classifications and properties

4.0.DEV13 (2022-04-24)

  • Add Database.new_node

4.0.DEV12 (2022-04-21)

  • Add Database.set_geocollections

4.0.DEV11 (2021-11-01)

  • Change behaviour of .get() and .get_activity() to allow passing arbitrary filters and raise error if multiple results found
  • Add Activity.consumers() and Activity.producers().
  • technosphere() no longer returns substitution exchanges by default (but still does if include_substitution=True); substitution exchanges are included by default in production.
  • Add .datapackage() convenience method for processed datastores

4.0.DEV10 (2021-10-24)

  • Only need geocollections for process nodes

4.0.DEV9 (2021-10-23)

  • Can pass Activity objects to get_activity
  • Add delete_duplicate_exchanges utility function
  • Automatically add geocollections for easier regionalization setup

4.0.DEV8 (2021-10-19)

  • Removing caching database lookups, it was causing pain and confusion

4.0.DEV7 (2021-10-17)

  • prepare_lca_inputs shouldn't require a demand (e.g. switch_method in LCA class)

4.0.DEV6 (2021-10-13)

  • Change bw2io migrations update to not require bw2io installation

4.0.DEV5 (2021-10-13)

4.0.DEV4 (2021-10-01)

  • CI fixes
  • Compatibility with downstream changes for Brightway 2.5

4.0.DEV3 (25-05-2021)

Fix bug in prepare_lca_inputs to pass bw_processing packages instead of PyFilesystem2 objects.

4.0.DEV2 (25-05-2021)

Fix bug for prepare_lca_inputs without remapping dicts.

4.0.DEV1 (19-05-2021)

Breaking changes

Python 2 compatibility removed

Removing the Python 2 compatibility layer allows for much cleaner and more compact code, and the use of some components from the in-development Brightway version 3 libraries.

All internal paths are now pathlib.Path objects

This allows for cleaner and more consistent code. Includes things like projects.dir.

SingleFile and JSON backends removed

These backends were implemented many years ago, and most of the current code already assumes the SQLite backend.

SQLite backend code refactored

The peewee directory is removed, and most of the code now lives in bw2data.backends. LCIBackend is removed, and now SQLiteBackend directly subclasses ProcessedDataStore.

Other changes

Use of bw_processing

We now use bw_processing to create processed arrays. Processed arrays are compressed directories (because there is a metadata file as well, and possibly multiple array files). All databases, methods, etc. will need to be reprocessed, but this happens automatically via a data migration.

bw_processing has a completely different API, and LCA objects no longer have a single set of parameters (like tech_params) for each matrix - instead, they have data resources, which offer more flexibility, but also more complexity. See the bw_processing, matrix_utils, and bw2calc documentation.

Database IDs for activities preferred

Using integer IDs is the preferred way to identify activities and products in Brightway 3. You can now easily get the integer id of an activity:

>>> a = bw2data.Database("something").random()

>>> a.id
19014

And use the integer ID in the get functions:

>>> bw2data.get_activity(19014)
'treatment of aluminium in car shredder residue, municipal incineration' (kilogram, RoW, None)

>>> bw2data.Database("something").get(19014)
'treatment of aluminium in car shredder residue, municipal incineration' (kilogram, RoW, None)

You can also call get_id on activity keys:

>>> bw2data.get_id(a)
19014

>>> bw2data.get_id(a.key)
19014

mapping no longer used, though compatibility layer added

You can still import mapping, but this will just look up the IDs from the SQLite database. There is no longer a separate file.

This change means that you can no longer add exchanges or characterization factors which reference activities that don't (yet) exist.

Smaller changes

  • IOTableBackend.write arguments have changed to (products, prod_exchanges, tech_exchanges, bio_exchanges).
  • bw2data.utils.safe_filename was moved to bw_processing
  • Database.get is removed (though Database('foo').get() still works). Use get_activity instead.

3.6.2 (2019-11-11)

  • Fixed invalid variable name creation

3.6.1 (2019-10-18)

Merged PR #19: Fix activityparam rename.

3.6 (2019-10-09)

  • Merged multiple pull requests (#12, #13, #14, #15, #16, #17, #18) from Daniël de Koning related to improving the handling of parameters, as part of his work on including parameterization in the Activity browser.

3.5.1 (2019-09-05)

  • Remove temporary directories after tests finish

3.5 (2019-05-16)

  • PR #11: Fix for searching with stop words

3.4.5 (2019-05-11)

  • Fix collections.abc compatibility with Python 3.8

3.4.4 (2019-01-08)

  • Make index creation not raise error if index already exists

3.4.3 (2018-09-21)

  • Fix #60: No SQLite index creation after switching projects
  • Merged PR #9: Better handling of non-unique parameter names

3.4.2 (2018-06-01)

  • Fix #56: Name conflicts with multiple dummy parameters

3.4.1 (2018-06-01)

  • Fix bug with geocollections and search indices

3.4 (2018-05-31)

  • Eliminate inconsistency between use of name and variable by always using name

3.3.1 (2018-04-23)

  • Remove print debugging statements

3.3 (2018-04-05)

3.2 (2018-02-16)

  • Better find symbol name dependencies in exchange formulas

3.1.1 (2018-02-13)

  • Minor compatibility changes for parameters to make unified API

3.1 (2018-01-18)

  • Improve performance of random (#47)
  • Added dynamic_calculation_setups
  • All data in search engine stored in lowercase (#35)
  • Fixes to writing sqlite databases for better interaction with user interfaces (#53)

3.0 (2017-12-2)

  • Add support for hierarchical parameters and formulas (expressed as strings), with automatic and recalculation of dependencies
  • Make Activity.upstream() more flexible

2.4.7 (2017-09-14)

  • Fix bugs in merge_databases

2.4.6 (2017-08-29)

  • Fix bug where negative value wasn't used in exchange proxy uncertainty dictionaries

2.4.5 (2017-08-15)

  • Add database merging function (bw2data.utils.merge_databases)

2.4.4 (2017-04-17)

  • Fix license text

2.4.3 (2017-04-06)

  • Specify encoding of license file, and then don't. Yeah computers.

2.4.2 (2017-04-06)

  • Remove dependency on bw2io

2.4.1 (2017-04-05)

  • Include substitution types in .technosphere() iterator. Can be excluded with include_substitution=False.

2.4 (2017-03-20)

  • Write-only locks are now optional and disable by default
  • Removed projects.current.
  • Exchanges is now consistently ordered

2.3.2 (2016-07-17)

  • Specify a sensible order for sorting processed arrays

2.3.1 (2016-07-16)

  • Fixed bug with Activity.copy()
  • Fixed some bugs with database filtering

2.3 (2016-07-14)

  • Use consistent sorting for all DataStore objects. However, this sorting is not guaranteed across machines.
  • Use np.save instead of pickling for processed arrays.
  • Added projects.output_dir and environment variable BW2_OUTPUT_DIR.
  • Removed deprecated functions in config.
  • Add field code to search index.

2.2.2 (2016-06-10)

  • Changes to improve testing for bw2data and bw2calc

2.2.1 (2016-06-06)

  • Fix some places where set_current wasn't introduced
  • Rework initialization of projects and add projects tests
  • Moved tests to main directory

Windows tests are failing due to naughty strings being used for project names.

2.2 (2016-06-03)

  • Deprecated projects.current = 'foo' in favor or projects.set_current('foo')
  • Added ability to switch to read only project with projects.set_current('foo', writable=False)
  • Removed separate write of topomapping files from inventory databases. All topology handling is internal to bw2regional
  • Fixed bug where download_file wouldn't raise an error is resource was not found.

2.1 (2016-05-28)

  • Fix database writes not propagating to search index
  • Added continuous integration tests on Windows
  • Fix bug when iterating over projects

2.0.2 (2016-05-20)

  • Better __str__ for metadata
  • Make projects sortable
  • Allow forcing writes with projects.enable_writes(force=True)

2.0.1 (2016-04-14)

  • Bugfix release to add unstated dependency of pyprind

2.0 (2016-04-11)

2.0 brings massive changes to how datasets are stored and searched. The first big change is a new default backend, using peewee and SQLite3. This backend has a nicer API, faster random access, and reduced memory consumption. Here are some examples of new usage patterns:

  • FEATURE: New backend, sqlite, which is the default. Should massively reduce memory consumption in most cases, as entire databases don't need to be loaded.
  • FEATURE: Backend now return activity and exchange proxies instead of raw data, making for easier manipulation and construction.

Note: Both packages bw2search and bw2simple are obsolete - their functionality is now included in bw2data by default.

Data cannot be directly migrated from bw2data < 2; instead, databases should be exported as BW2Package files and then re-imported.

1.4 (2014-11-26)

  • BUGFIX: JSONDatabases are now JSON-serializable. Database variants must now support the keyword argument as_dict, and return an actual dict if as_dict=True.

1.3.3 (2015-02-04)

  • Improve SimaPro and Ecospold2 imports

1.3.2 (2014-10-27)

  • BUGFIX: Added missing unidecode dependency.
  • BUGFIX: Remove error when bw2calc is not installed.

1.3.1 (2014-10-27)

  • BUGFIX: safe_save now works on Windows.

1.3 (2014-10-25)

  • FEATURE: Add SimaPro ecospold 1 imports, and create a new import "flavor" called "SimaPro8" that can handle the new way SimaPro breaks ecoinvent 3 activity names.
  • FEATURE: utils.safe_save makes sure a file write is successful before overwriting known good data.
  • CHANGE: Lots of documentation improvements.
  • CHANGE: Import comments by default in ecospold 1 & 2. Remove import_comments.py file.
  • CHANGE: Added some ecoinvent 3 units to normalize_units.

1.2 (2014-09-04)

  • FEATURE: Add backends.utils.convert_backend utility function to switch between database backends.
  • FEATURE: Added Ecospold 1 & 2 comment importers (io.import.add_ecospold1_comments and io.import_comments.add_ecospold2_comments). Comments are currently not imported by default.
  • CHANGE: Ecospold 1 & 2 importers now store file directory as directory in metadata.
  • CHANGE: Each Database should specify its backend attribute.

1.1.1 (2014-08-26)

  • BUGFIX: Don't die if xlsxwriter not installed.

1.1 (2014-08-25)

  • FEATURE: Add MATLAB LCI matrix exporter.
  • FEATURE: Add make_latest_version method for SingleFileDatabases, to make reverting easier.
  • BUGFIX: Make sure uncertainify can handle negative amount values.

1.0.3 (2014-08-16)

  • CHANGE: Automatically set num_cfs for methods and number for databases when .write() is called.

1.0.2 (2014-08-14)

  • BUGFIX: Release memory during Updates.reprocess_all_1_0.

1.0.1 (2014-08-01)

  • CHANGE: Ecospold2 importer is now more resilient to incorrect input data.
  • BUGFIX: uncertainify now correctly handles amount <= 0.
  • Small documentation fixes.

1.0 (2014-07-30)

bw2-uptodate.py is required for this update.

Default values for various attributes need to be added when not previously specified.

  • FEATURE: Pluggable LCI backends. Two backends are provided - SingleFileDatabase and and JSONDatabase, and others can be easily added. A new notebook shows how to use JSONDatabase.
  • FEATURE: Ecospold2 importer is out of alpha status as of Ecoinvent 3.1.
  • FEATURE: bw2-uptodate should now work without PATH hassles on windows. Name changed from bw2-uptodate.py.
  • FEATURE: Searching databases is better documented and tested. A new notebook shows searching examples.
  • BREAKING CHANGE: The "in" operator in searching is now "has" - the previous semantics were simply incorrect.
  • CHANGE: Database exchanges without type now raise UntypedExchange error when processed.
  • CHANGE: Database exchanges without amount or input now raise InvalidExchange error when processed.
  • CHANGE: The order of database exchanges in processed arrays is sorted is changed.
  • CHANGE: LCI database format is now more flexible, and almost all required elements are removed. For example, {} is now a valid LCI dataset.
  • BUGFIX: Allow unicode in utils.safe_filename.
  • BUGFIX: reset_meta() now also reset config preferences.

0.17.1 (2014-06-11)

  • CHANGE: Improve resiliency of SimaPro import.

0.17 (2014-04-29)

  • BREAKING CHANGE: Database 'depends' is now calculated automatically when calling Database.process().

0.16 (2014-04-28)

bw2-uptodate.py is required for this update

  • FEATURE: Added Database.filepath_intermediate and Database.filepath_processed for easier access to raw data files.
  • BREAKING CHANGE: All importers now produce unicode strings. Before, the SimaPro importer produced Latin-1 strings, while the XML importers produced UTF-8.
  • CHANGE: Database.process() now uses obj.filename, not obj.name, as this is not always safe for filenames.

0.15.1 (2014-04-17)

  • FEATURE: Utility functions to view process datasets in web browser
  • FEATURE: utils.web_ui_accessible tests if web UI is running and accessible
  • CHANGE: SimaPro importer can now add unlinked exchanges as new process datasets
  • CHANGE: New preference key: "web_ui_address"

0.15 (2014-04-11)

  • BREAKING CHANGE: Database.process skips exchanges if type is not process.
  • FEATURE: Database.list_dependents traverses datasets to get linked databases.
  • CHANGE: Query.repr always returns unicode strings.
  • CHANGE: SimaPro importer can now import input and output comments, including multiline comments

0.14.1 (2014-03-07)

No changes, just messed up packaging...

0.14 (2014-03-07)

bw2-uptodate.py is required for this update

  • CHANGE: BW2Package.export_obj now uses obj.filename instead of obj.name for filepath of backup file (needed for LCIA methods).
  • CHANGE: categories is no longer required by utils.activity_hash.
  • CHANGE: Database.copy() no longer emits a not registered warning.
  • CHANGE: Database.copy() makes a deep copy of data before modification.
  • CHANGE: bw2data.__init__ no longer imports the io and proxies directories, to avoid namespace conflicts with io standard library package.

0.13 (2014-02-13)

  • BREAKING CHANGE: Database.process() now only includes datasets with type process in constructing geomapping array.

##0.12.2 (2014-02-04)

  • CHANGE: BW2Package import file ignores warnings

0.12.1 (2014-02-04)

New BW2Package format

The new BW2Package is not specific to databases or methods, but should work for any data store that implements the DataStore API. This allows for normalization, weighting, regionalization, and others, and makes it easy to backup and restore.

0.12 (2014-02-04)

bw2-uptodate.py is required for this update

Safe filenames

The algorithm to create filenames was changed to prevent illegal characters being used. See utils.safe_filename.

0.11 (2014-01-28)

bw2-uptodate.py is required for this update

Upgrades to updates

The update code filename was changed to updates.py, and dramatically simplified. Code was organized and moved to an Updates class. All functionality was removed from utility scripts and bw2-uptodate.py. Fresh installs should not have erroneous "updates needed" warnings.

Generic DataStore makes new matrices easy

data_store.DataStore defines a template for all data stores which could be processed into matrix data, and provides a lot of functionality for free. New objects subclass DataStore or ImpactAssessmentDataStore, and need only define their unique data fields, metadata store, and validator. Abstracting common functionality into a simple class hierarchy should also produce fewer bugs.

Smaller changes

  • BREAKING CHANGE: The filenames for LCIA methods are now derived from the MD5 of the name. This breaks all method abbreviations.
  • BREAKING CHANGE: The filename and filepath attributes in SerializedDict and subclasses moved from _filename and filepath to filename and filepath
  • BREAKING CHANGE: Register for all data store now takes any keyword arguments. There are no required or positional arguments.
  • BREAKING CHANGE: Database.process() doesn't raise an AssertionError for empty databases
  • FEATURE: Database.process() writes a geomapping processed array (linking activity IDs to locations), in addition to normal matrix arrays.
  • FEATURE: Tests now cover more functionality, and should allow for more worry-free development in the future.
  • CHANGE: Database datasets are not required to specify a unit.
  • CHANGE: The default biosphere database is no longer hard coded, and can be set in config.p['biosphere_database']. The default is still "biosphere".
  • CHANGE: The default global location is no longer hard coded, and can be set in config.p['global_location']. The default is still "GLO".
  • CHANGE: Ecospold 1 & 2 data extractors now only have classmethods, and these classes don't need to be instantiated. A more functional style was used to try to avoid unpleasant side effects.