OpenGrm Pynini: Finite-state grammar development in Python
Version 2.1.4 is now available for download.
Pynini is now available on
conda-forge. Linux (x86) and MacOS users who already have
Conda can install Pynini and all dependencies using the following command:
conda install -c conda-forge pynini
Linux (x86) users can now install precompiled
manylinux wheels for Pynini directly from
PyPI. Unlike the conda-forge installation method mentioned above, this does not install
OpenFst command-line tools, does not install the
Graphviz command-line tools
Jupyter uses to generate state diagrams, and does not yet work on MacOS. To install a Pynini wheel use the following command:
pip install pynini
When using Pynini from a
Jupyter or
Colab notebook, logging and error messages sent to standard error are lost. To recover them, install
wurlitzer
and then add the following at the top of your notebook:
%load_ext wurlitzer
OpenGrm Pynini, like
Thrax, compiles grammars expressed as strings, regular expressions, and context-dependent rewrite rules into weighted finite-state transducers. It uses the
OpenFst library and its
Python extension to create, access and manipulate compiled grammars. Pynini is embedded in a
Python module, allowing users to write Thrax-like grammars using Python's flexible syntax (including imperative programming constructs not available in Thrax) and powerful toolchain.
It is (loosely) named after
Pāṇini (पाणिनि), the renowned Sanskrit grammarian.
For more information about Pynini, see:
Other third-party information: