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@karalekas karalekas released this 07 Nov 17:52
· 488 commits to master since this release
v2.13.0
dab7de2

Announcements

  • Rather than installing pyQuil from PyPI, conda-forge, or the source directly, users with Docker installed can pull and run the rigetti/forest Docker image to quickly get started with compiling and simulating quantum programs! When running the image, a user will be dropped into an ipython REPL that has pyQuil and its requirements preinstalled, along with quilc and qvm servers running in the background (@karalekas, gh-1035, gh-1039).
  • Circuit diagram generation has had a makeover! In particular, the pyquil.latex module provides two mechanisms for generating diagrams from pyQuil programs: pyquil.latex.to_latex generates human-readable LaTeX output expressing a Program as a circuit diagram, and pyquil.latex.display renders a Program as an IPython.display.Image for inline viewing in Jupyter Notebooks. Learn more about these features in the new example notebook (@kilimanjaro, gh-1074).

Improvements and Changes

  • Added a Makefile with some simple targets for performing common build operations like creating and uploading a package (@karalekas, gh-1032).
  • Replaced symmetrization in operator_estimation with functionality contained within QuantumComputer.run_symmetrized_readout (@kylegulshen, gh-1047).
  • As part of the CI, we now package and push to TestPyPI on every commit, which de-risks breaking the setup.py and aids with testing (@karalekas, gh-1017).
  • We now calculate code coverage as part of the CI pipeline (@karalekas, gh-1052).
  • Moved the program generation from measure_observables into its own private function (@kylegulshen, gh-1043).
  • All uses of __future__ and six have been dropped (@karalekas, gh-1060).
  • The conftest.py has been moved to the project root dir (@karalekas, gh-1064).
  • Using protoquil as a positional argument to qc.compile has been deprecated, and it is now a keyword-only argument (@karalekas, gh-1071).
  • PauliSum objects are now hashable (@ecpeterson, gh-1073).
  • The code in device.py as been reorganized into a new device subdirectory in a completely backwards-compatible fashion (@karalekas, gh-1066, gh-1094).
  • PauliTerm and PauliSum now have __repr__ methods (@karalekas, gh-1080).
  • The experiment-schema-related code in operator_estimation.py has been moved into a new experiment subdirectory (@karalekas, gh-1084, gh-1094).
  • The keyword arguments to measure_observables are now captured as part of the TomographyExperiment class (@karalekas, gh-1090).
  • Type hints have been added to the pyquil.gates, pyquil.quilatom, and pyquil.quilbase modules (@appleby, gh-999).
  • We now support Python 3.8 and it is tested in the CI (@karalekas, gh-1093).

Bugfixes

  • Updated examples/meyer_penny_game.py with the correct path to the Meyer Penny game exercise in docs/source/exercises.rst (@appleby, gh-1045).
  • Fixed the Slack Workspace invite link in the README (@amyfbrown, gh-1042).
  • QPU.reset() now checks whether pyquil_config.qpu_url exists before updating the endpoint so as not to break custom connections (@kylegulshen, gh-1072).
  • Fixed pretty printing of parameter expressions where π is involved (@notmgsk, gh-1076).
  • Fixed a regression in PyQVM.execute that prevented it from running programs containing user-defined gates (@appleby, gh-1067).
  • Remove some stale code for pulling quilc version info (@notmgsk, gh-1089).
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