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+.. _python_interface:
+
+Python Interfaces
+#################
+
+.. #
+   we have 2 interfaces (libghdl, dom) and a service (LSP) as well as CLI entry points.
+
+GHDL offers two Python interfaces and a language server protocol service. All
+this is provided from a ``pyGHDL`` packages with four sub-packages:
+
+* ``pyGHDL.cli`` - Command line interface (CLI) applications.
+* ``pyGHDL.dom`` - High-level API as document object model (DOM).
+* ``pyGHDL.libghdl`` - Low-level API to ``libghdl``
+* ``pyGHDL.lsp`` - Language server protocol (LSP) implementation and service
+
+
+.. topic:: pyGHDL.libghdl
+
+   *pyGHDL.libghdl* is a low-level API directly interacting with the shared
+   library ``libghdl....so``/``libghdl....dll``. This is a procedural and C-like
+   interface.
+
+   It comes with some Python generators for easier iterating linked lists.
+
+
+.. topic:: pyGHDL.dom
+
+   *pyGHDL.dom* is a high-level API offering a document object model (DOM).
+   The underlying abstract VHDL language model is provided by `pyVHDLModel <https://github.com/VHDL/pyVHDLModel>`__.
+   The DOM is using ``libghdl`` for file analysis and parsing.
+
+
+.. topic:: pyGHDL.lsp
+
+   *pyGHDL.lsp* is `language server protocol <https://en.wikipedia.org/wiki/Language_Server_Protocol>`__
+   (LSP) written in Python. The implementation offers an HTTPS service that can
+   be used e.g. by editors and IDEs supporting LSP.
+
+
+.. toctree::
+   :hidden:
+
+   ../../pyGHDL/pyGHDL.cli
+   ../../pyGHDL/pyGHDL.dom
+   ../../pyGHDL/pyGHDL.libghdl
+   ../../pyGHDL/pyGHDL.lsp
+
+
+.. _CMDREF:
+
+Scripts and Applications
+########################
+
+The pyVHDLParser package comes with an executables registered by pip in the
+search path.
+
+* ``VHDLParser`` is a wrapper for ``pyVHDLParser.CLI.VHDLParser:main``.
+
+
+.. #
+   This files requires a Python module called 'Frontend-AutoProgram' to be
+   located in the 'doc' root folder. It expects a variable 'parser' of type
+   ArgumentParser.
+
+.. _CMDREF-ghdlls:
+
+.. autoprogram:: AutoProgram:lsp_parser
+   :prog: ghdl-ls
+   :groups:
+   :label: CmdRef:ghdlls:
+
+.. _CMDREF-pnodes:
+
+.. #
+   autoprogram:: AutoProgram:pnodes_parser
+   :prog: ghdl-ls
+   :groups:
+   :label: CmdRef:ghdlls: