ixmpis tested and compatible with Python 3.11 (PR #481).
ixmpis tested and compatible with pandas 2.0.0 (PR #471). Note that pandas 1.4.0 dropped support for Python 3.7: thus while
ixmpstill supports Python 3.7 this is achieved with pandas 1.3.x, which may not receive further updates (the last patch release was in December 2021). Support for Python 3.7 will be dropped in a future version of
ixmp, and users are encouraged to upgrade to a newer version of Python.
Bugfix: year argument to
int(#440, PR #469).
Adjust to pandas 1.5.0 (PR #458).
util.sphinx_linkcode_githubto link documentation to source code on GitHub (PR #459).
Optionally tolerate failures to add individual items in
store_ts()reporting computation (PR #451); use
timeseries_only=Truein check-out to function with
Scenariowith solution data stored.
Configsquashed configuration values read from
config.json, if the respective keys were registered in downstream packages, e.g.
message_ix. Allow the values loaded from file to persist (PR #451).
Adjust to genno 1.12 and set this as the minimum required version for
ModelAPI for enforcing structure/data consistency before
Add new logo and diagram to the documentation (PR #446).
Raise an informative
ValueErrorwhen adding infinite values with
add_timeseries(); this is unsupported on
JDBCBackendwhen connected to an Oracle database (PR #443, #442).
urlfor convenience in constructing
ScenarioURLS (PR #444).
store_ts()reporting computation for storing time-series data on a
Minimum requirements are increased for dependencies (PR #435):
Python 3.7 or greater. Python 3.6 reached end-of-life on 2021-12-31.
Pandas 1.2 (2020-12-26) or greater, the oldest version with a minimum Python version of 3.7.
Improvements to configuration (PR #435):
The jvmargs argument to
JDBCBackendcan be set via the command line (ixmp platform add …) or
Config.add_platform(); see Configuration (#408).
Bug fix: user config file values from downstream packages (e.g.
message_ix) are respected (#415).
Security: upgrade Log4j to 2.17.1 in Java code underlying
JDBCBackendto address CVE-2021-44228, a.k.a. “Log4Shell” (PR #445).
The ixmp Python package is not network-facing per se (unless exposed as such by user code; we are not aware of any such applications), so remote code execution attacks are not a significant concern. However, users should still avoid running unknown or untrusted code provided by third parties with versions of ixmp prior to 3.5.0, as such code could be deliberately crafted to exploit the vulnerability.
ixmp.utils.isscalar() is deprecated.
Code should use
TimeSeries.transact(), for wrapping data manipulations in
commit()operations (PR #422).
Add Data model, a documentation page giving a complete description of the
ixmpdata model (PR #422).
Add the pytest --user-config command-line option, to use user’s local configuration when testing (PR #422).
format_scenario_list()for changes in
pandas1.3.0 (PR #421).
rixmp is deprecated, though not yet removed, as newer versions of the R reticulate package allow direct import and use of the Python modules with full functionality.
See the updated page for Usage in R via reticulate.
ixmp config showCLI command (PR #416).
message_ix_modelsto the output of
ixmp show-versions(PR #416).
Clean up test suite, improve performance, increase coverage (PR #416).
Adjust documentation for deprecation of
Add a quiet option to
GAMSModel.solve()and use in testing (PR #399).
GAMSModelwould try to write GDX data to filenames containing invalid characters on Windows (PR #398).
Format user-friendly exceptions when GAMSModel errors (#383, PR #398).
Fix two minor bugs in reporting (PR #396).
Increase JPype minimum version to 1.2.1 (PR #394).
Adjust test suite for pandas v1.2.0 (PR #391).
Raise clearer exceptions from
add_par()for incorrect parameters; silently handle empty data (PR #374).
xlsxwriterfor Excel I/O;
xlrdversions 2.0.0 and later do not support
Add a parameter for exporting all model+scenario run versions to
Platform.export_timeseries_data(), and fix a bug where exporting all runs happens uninteneded (PR #367).
Silence noisy output from ignored exceptions on JDBCBackend/JVM shutdown (PR #378).
Add a utility method,
gams_version(), to check the installed version of GAMS (PR #376). The result is displayed by the
ixmp show-versionsCLI command/
init_par()and related methods accept any sequence (not merely
strfor the idx_sets and idx_names arguments (PR #376).
ixmp v3.1.0 coincides with message_ix v3.1.0.
Fix a bug in
read_excel()when parameter data is spread across multiple sheets (PR #345).
Expand documentation and revise installation instructions (PR #363).
Raise Python exceptions from
utils.diff(), and allow using filters in CLI command
ixmp export(PR #354).
Add functionality for storing ‘meta’ (annotations of model names, scenario names, versions, and some combinations thereof) (PR #353).
Allow these to be called from
Avoid modifying indexers dictionary in
Add region/unit parameters to
Preserve dtypes of index columns in
ixmp show-versionsincludes the path to the default JVM used by JDBCBackend/JPype (PR #339).
reporting.Quantityclasses interchangeable (PR #317).
Use GitHub Actions for continuous testing and integration (PR #330).
ixmp v3.0.0 coincides with message_ix v3.0.0.
- Excel input/output (I/O)
The file format used by
read_excel()is now fully specified; see File formats and input/output.
ixmp writes and reads items with more elements than the ~10⁶ row maximum of the Excel data format, by splitting these across multiple sheets.
The I/O code now explicitly checks for situations where the index sets and names for an item are ambiguous; see this example for how to initialize and read these items.
- Updated dependencies
The minimum versions of the following dependencies are increased:
dask 2.14 (for reporting)
- Deprecations and deprecation policy
The following items, marked as deprecated in ixmp 2.0, are removed (PR #254):
$HOME/.local/ixmp/as a configuration location. Configuration files are now placed in the standard
clone(). Use shift_first_model_year, keep_solution, and scenario, respectively.
rixmp.legacy, an earlier version of the R interface that did not use reticulate.
Newly deprecated is:
cache keyword argument to
Scenario. Caching is controlled at the
Platform/Backend level, using the same keyword argument.
Starting with ixmp v3.0, arguments and other features marked as deprecated will follow a standard deprecation policy: they will be removed no sooner than the second major release following the release in which they are marked deprecated. For instance, a feature marked deprecated in ixmp version “10.5” would be retained in ixmp versions “11.x”, and removed only in version “12.0” or later.
Bump JPype dependency to 0.7.5 (PR #327).
Improve memory management in
Raise user-friendly exceptions from
Reporter.get()in Jupyter notebooks and other read–evaluate–print loops (REPLs) (PR #316).
Model.initialize()is always called for new and cloned objects (PR #315).
Add CLI command ixmp show-versions to print ixmp and dependency versions for debugging (PR #320).
Bulk saving for metadata and exposing documentation AP (PR #314)I
select()reporting calculations; expand
Keywith a tag;
Quantityattributes (PR #310).
Add CLI command
ixmp solveto run model solver (PR #304).
Add dims and units arguments to
Reporter.configure()) (PR #303).
Add option to include subannual column in dataframe returned by
read_excel(); this functionality is transferred to ixmp from
message_ixand enhanced for dealing with maximum row limits in Excel (PR #286, PR #297, PR #309).
Include all tests in the ixmp package (PR #270).
Model.initialize()API to help populate new Scenarios according to a model scheme (PR #212).
Apply units to reported quantities (PR #267).
Increase minimum pandas version to 1.0; adjust for API changes and deprecations (PR #261).
export_timeseries_data()to write data for multiple scenarios to CSV (PR #243).
Implement methods to get and create new subannual timeslices (PR #264).
ixmp v2.0.0 coincides with message_ix v2.0.0.
Support for Python 2.7 is dropped as it has reached end-of-life, meaning no further releases will be made even to fix bugs.
See PEP-0373 and https://python3statement.org.
ixmp users must upgrade to Python 3.
Configuration for ixmp and its storage backends has been streamlined.
See the ref:Configuration section of the documentation for complete details on how to use
ixmp platform add register local and remote databases.
To migrate from pre-2.0 settings:
…pointed to a directory containing database properties (.properties) files.
All Platform configuration is stored in one ixmp configuration file, config.json, and manipulated using the
ixmp platformcommand and subcommands.
Platformconstructor accepts the name of a stored platform configuration.
Different storage backends may accept relative or absolute paths to backend-specific configuration files.
…gave a default backend via a file path.
On the command line, use
ixmp platform add default NAMEto set
NAMEas the default platform.
This platform is loaded when
ixmp.Platform()is called without any arguments.
…pointed to a default local database.
ixmp.configalways contains a platform named ‘local’ that is located below the configuration path, in the directory ‘localdb/default’.
To change the location for this platform, use e.g.:
ixmp platform add local jdbc hsqldb PATH.
ixmp listcommand-line tool (PR #240).
Ensure filters are always converted to string (PR #225).
Identify and load Scenarios using URLs (PR #189).
Add new Backend, Model APIs and CachingBackend, JDBCBackend, GAMSModel classes (PR #182, PR #200, PR #213, PR #217, PR #230, PR #245, PR #246).
Set convertStrings=True for JPype >= 0.7; see the JPype changelog (PR #174).
Make AppVeyor CI more robust; support pandas 0.25.0 (PR #173).
Add support for handling geodata (PR #165).
Fix exposing whole config file to log output (PR #232).
ixmp 0.2.0 provides full support for
clone() across platforms (database instances), e.g. from a remote database to a local HSQL database.
IAMC-style timeseries data is better supported, and can be used to store processed results, together with model variables and equations.
Other improvements include a new, dedicated
ixmp.testing module, and user-supplied callbacks in
retixmp package using reticulate to access the ixmp API is renamed to
rixmp and now has its own unit tests (the former
rixmp package can be accessed as
Release 0.2.0 coincides with MESSAGEix release 1.2.0.
retixmp) using the R
testthatpackage (PR #135).
Cloning across platforms, better support of IAMC_style timeseries data, preparations for MESSAGEix release 1.2 in Java core (PR #142).
Support iterating with user-supplied callbacks (PR #115).
IXMP_DATAenvironment variable for configuration and local databases (PR #130).
clone()across platforms (databases) (PR #129, PR #132).
ixmp.testingfor reuse of testing utilities (PR #128, PR #137).
Add functions to view and add regions for IAMC-style timeseries data (PR #125).
Return absolute path from
Switch to RTD Sphinx theme (PR #118).
Bugfix and extend functionality for working with IAMC-style timeseries data (PR #116).
Add functions to check if a Scenario has an item (set, par, var, equ) (PR #111).
Generalize the internal functions to format index dimensions for mapping sets and parameters (PR #110).
Improve documentation (PR #108).
Replace deprecated pandas
Specify dependencies in setup.py (PR #103).
Connecting to multiple databases, updating MESSAGE-scheme scenario specifications to version 1.1 (PR #88).
Can now set logging level which is harmonized between Java and Python (PR #80).
Adding a deprecated-warning for ixmp.Scenario with scheme==’MESSAGE’ (PR #79).
Changing the API from
ixmp.Scenario(mp, ...)(PR #76).
Adding a function
has_solution(), rename kwargs to …_solution (PR #73).
Bring retixmp available to other users (PR #69).
Support writing multiple sheets to Excel in utils.pd_write (PR #64).
Now able to connect to multiple databases (Platforms) (PR #61).
Add MacOSX support in CI (PR #58).
Add ability to load all scenario data into memory for fast subsequent computation (PR #52).