0.3.2

Added:

• Support for DisCoPy >= 1.1.4 (credit: toumix).
  • replaced discopy.rigid with discopy.grammar.pregroup everywhere.
  • replaced discopy.biclosed with discopy.grammar.categorial everywhere.
  • Use Diagram.decode to account for the change in contructor signature Diagram(inside, dom, cod).
  • updated attribute names that were previously hidden, e.g. ._data becomes .data.
  • replaced diagrammatic conjugate with transpose.
  • swapped left and right currying.
  • dropped support for legacy DisCoPy.
• Added CCGType class for utilisation in the biclosed_type attribute of CCGTree, allowing conversion to and from a discopy categorial object using CCGType.discopy and CCGType.from_discopy methods.
• CCGTree: added reference to the original tree from parsing by introducing a metadata field.

Changed:

• Internalised DisCoPy quantum ansätze in lambeq.
• IQPAnsatz now ends with a layer of Hadamard gates in the multi-qubit case and the post-selection basis is set to be the computational basis (Pauli Z).

Fixed:

• Fixed a bottleneck during the initialisation of the PennyLaneModel caused by the inefficient substitution of Sympy symbols in the circuits.
• Escape special characters in box labels for symbol creation.
• Documentation: fixed broken links to DisCoPy documentation.
• Documentation: enabled sphinxcontrib.jquery extension for Read the Docs theme.
• Fixed disentangling RealAnsatz in extend-lambeq tutorial notebook.
• Fixed model loading in PennyLane notebooks.
• Fixed typo SPSAOptimizer (credit: Gopal-Dahale)

Removed:

• Removed support for Python 3.8.