mirror of https://github.com/Qiskit/qiskit.git
9e455f2f0d
* Document that symengine is optional for qpy.load This commit changes the API for qpy.load() to make it explicit that symengine may not be installed in the future but is a requirement for deserializing certain payloads that were generated using symengine. We're expecting to drop symengine as a requirement with #13278 which should improve Qiskit's installation story and also will facilitate adding a C api for circuits. But the qpy v10, v11, and v13 have a hard requirement on symengine (specifically 0.11.0 and 0.13.0) to be able to deserialize `ParameterExpression` if the symbolic encoding was set to use it. Since the function needs to support being able to deserialize these payloads symengine will need to be installed. This commit adds the document and release note to indicate this change in behavior. * Raise QPY compatibility version to remove symengine and sympy dependency This commit raises the qpy compatibility version to QPY format version 13. As the larger PR is planning for a world without symengine installed by default this becomes a problem for the generation side too. This becomes a blocker for using QPY < 13 in the future so this commit opts to just raise the minimum verison to get ahead of any potential issues. * Add HAS_SYMENGINE check on load function * Correct logic for ucr*_dg gates name changing * Add feature string to optional decorator * Prepare for an optional sympy In addition to making symengine optional #13278 should also enable us to make sympy optional. It would only be potentially needed for loading QPY payloads that were generated using sympy encoding, but also some visualization functions. This commit lays the groundwork for removing it as a dependency by outlining the API changes for the functions that will optionally depend on sympy and raise an exception if it's not installed. It won't be possible to trigger the exception with sympy in the requirements list, but when we do remove it the API is prepared for it. * Fix release note categorization * Add missing optional on template substitution |
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| .. | ||
| __init__.py | ||
| test_circuit_load_from_qpy.py | ||
| test_serialize_value_objects.py | ||