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0.27.0.rst

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Changelog for QCoDeS 0.27.0

The July 2021 release of QCoDeS.

Breaking Changes:

  • DelegateInstrument takes parameters as an optional, keyworded input argument. Any arguments passed as positional arguments after this one will break with this change. (3089)

New:

  • A generalized N-dimensional dond function has been created to work with sweep objects and measurement parameters. Currently available sweep objects are LinSweep and LogSweep that can be used for dond measurements. (2990)
  • The default value for default_parameter_name in the Loop QCoDeS dataset changed from amplitude to None. The amplitude value interferes with datasets where one of the setpoint arrays is called amplitude. (3095)
  • Abstract parameters has been added which allow one to create abstract instrument types that have parameters which can be overwritten in a subclass allowing the creation of instruments subclasses with a well-defined api. (3125, 3217, 3197)
  • DataSetProtocol created to define the protocol that datasets must implement to be able to act as a storage device for the measurement class. (3075, 3092)
  • Enable exporting complex numbers to netcdf. (3126)

Improved:

  • DelegateInstrument can now support instrument channels. (3089)
  • Decouple measurement name from dataset results table name to allow special characters in the measurement name. (3185)
  • Update the get started document with installing and using spyder and jupyter. (3179)
  • Add underlying_instrument property to _BaseParameter and use it in call_params_threaded instead of root_instrument. (3127)
  • Ensure that the per array metadata is also exported to dataarrays and not just datasets. (3116)
  • Use threaded setting from config in doNd functions, and make process_params_meas public. (3096)
  • Don't allow metadata tags that are not valid python identifiers (3192)
  • Pulled out dataframe_to_csv into it's own submodule export_to_csv from the data_set submodule for easier reuse. (3061)

Improved drivers:

  • Fix to Rohde & Schwarz ZNB driver for setting npts in CW mode. (3168)
  • Update Keithley 2600 SMU current parameter to be aware of if current compliance is hit during measurement. (3160)
  • Alazar ATS drivers: Fix buffer size for mode='TS' and buffers_per_acquisition > 1. (3118)
  • New parameter complex_voltage has been added to the SR830 lockin amplifier. (3078)

Under the hood:

  • Add logging to measurement runs in doNd functions (3206)
  • Fix to speed up and properly set experiment in delegate device test (3199)
  • Remove bare wait test due to random failures (3198)
  • Revert checking of abstract parameters in post init due to unintended side effects (3197)
  • Use public interface for instrument in parameters (3187)
  • Fix numpy deprecation for ragged arrays (3184)
  • Add documentation to explain automatic CI (3169)
  • Give threads time to start in tests (3167)
  • Minimum changes to allow type checking to pass with numpy 1.21 (3150)
  • Add customDimensionsFilter to inject custom dim, and inject pythonExecutable (3143)
  • Add export info metadata to dataset (3135)
  • Pin typing packages the same way as other test dependancies do (3123)
  • Do not preserve gh pages branch history significantly reducing the size of the full clone of the QCoDeS repository (3122)
  • Add typing packages to conda CI (3115)
  • Fix link to pyvisa intersphinx (3106)
  • Compare shapes in RunDescriber equality method (3105)
  • Fix invalid array syntax in json schema (3097)