3.4.0 / 2024-09-26

NumPy has been removed from opt_einsum as a dependency allowing for more flexible installs. Type hints have been added to the code base as well as an overhaul of the documentation to MkDocs here: https://dgasmith.github.io/opt_einsum/

New Features

• #160 Migrates docs to MkDocs Material and GitHub pages hosting.
• #161 Adds Python type annotations to the code base.
• #204 Removes NumPy as a hard dependency.

Enhancements

• #154 Prevents an infinite recursion error when the memory_limit was set very low for the dp algorithm.
• #155 Adds flake8 spell check to the doc strings
• #159 Migrates to GitHub actions for CI.
• #174 Prevents double contracts of floats in dynamic paths.
• #196 Allows backend=None which is equivalent to backend='auto'
• #208 Switches to ConfigParser insetad of SafeConfigParser for Python 3.12 compatability.
• #228 backend='jaxlib' is now an alias for the jax library
• #237 Switches to ruff for formatting and linting.
• #238 Removes numpy-specific keyword args from being explicitly defined in contract and uses **kwargs instead.

Bug Fixes

• #195 Fixes a bug where dp would not work for scalar-only contractions.
• #200 Fixes a bug where parse_einsum_input would not correctly respect shape-only contractions.
• #222 Fixes an erorr in parse_einsum_input where an output subscript specified multiple times was not correctly caught.
• #229 Fixes a bug where empty contraction lists in PathInfo would cause an error.