QCoDeS/Qcodes: October 2019

The October 2019 release of QCoDeS

New:

• Introduce a new kind of deprecation warning (#1752). Users, please take deprecation warnings seriously. See also breaking changes below.

Improved:

• API documentation improved! (#1725)

Improved Drivers:

• Keithley 2600 Sourcemeter: now implements a time trace parameter and autorange functionality (#1684)
• Keysight 344xxA Digital Multimeter: now implements a time trace parameter (#1750)
• Keysight B 1500 Parameter Analyzer: now supports phase compensation, open compensation, clear frequency list, and abort measurement (#1704) and reading the error message (#1758)
• Lakeshore Model 372 Temperature Controller: Improve the snapshot and add new heater parameter (#1746)
• Dynacool PPMS: the tolerance for when the magnetic field has reached its target is now a parameter (#1754)

Under the hood:

• Start supporting python 3.8 (#1723)
• Use importlib-metadata (#1721)
• Fix a bug in create_on_off_val_mapping (#1732)
• Fix a bug in get_shaped_data_by_runid (#1735)
• Use mypy 0.730 (#1738)
• Add type annotations to more of the code base (#1739, #1743)
• Require type annotations in more of the code base (#1747)
• Fix a bug in the handling of instrument metadata (#1740)
• Fix a bug in GroupParameter that prevented the use of initial_value (#1742)
• Make the set_to context manager of parameters more robust and faster (#1749)
• Make the get_latest method of parameters more robust (#1751)
• Make test collection faster (#1755)

Breaking Changes:

• Deprecation warnings are no longer issued as DeprecationWarning but as a new custom type QCoDeSDeprecationWarning that does inherit from RuntimeWarning. The reason for this is that DeprecationWarning s are suppressed in the output by default.

• Changes to the YAML format specifying the Station. See The Station notebook <../examples/Station.ipynb>_. for examples of how the Station should be configured.

  • Specifying module name of a driver as driver and type is deprecated. Instead the full module path should be specified as type and the driver field removed. (#1753, #1760)
  • Specifying the limits of a parameter as a list of comma separated values is deprecated. Instead the limits should be specified as an array. (#1756)