============
Installation
============

kikuchipy can be installed with `pip <https://pypi.org/project/kikuchipy/>`__,
`conda <https://anaconda.org/conda-forge/kikuchipy>`__, the
:ref:`hyperspy:hyperspy-bundle`, or from source, and supports Python >= 3.7.
All alternatives are available on Windows, macOS and Linux.

.. _install-with-pip:

With pip
========

kikuchipy is availabe from the Python Package Index (PyPI), and can therefore be
installed with `pip <https://pip.pypa.io/en/stable>`__.
To install, run the following::

    pip install kikuchipy

To update kikuchipy to the latest release::

    pip install --upgrade kikuchipy

To install a specific version of kikuchipy (say version 0.5.8)::

    pip install kikuchipy==0.5.8

.. _optional-dependencies:

Optional dependencies
---------------------

Some functionality is optional and requires extra dependencies which must be installed
manually:

- :doc:`pyebsdindex<pyebsdindex:index>`: Hough indexing. We recommend to install with
  optional GPU support via :doc:`pyopencl<pyopencl:index>` with
  ``pip install pyebsdindex[gpu]`` or ``conda install pyebsdindex``.
- `nlopt <https://nlopt.readthedocs.io/en/latest/NLopt_Python_Reference/>`_: Extra
  optimization algorithms used in EBSD orientation and/or projection center refinement.
- :doc:`pyvista<pyvista:index>`: 3D plotting of master patterns.

Install all optional dependencies::

    pip install kikuchipy[all]

Note that this command will not install ``pyopencl``, which is required for GPU support
in ``pyebsdindex``. If the above command failed for some reason, one can try to install
each optional dependency individually.

.. warning::

    The option to install optional dependency ``pyvista`` via
    ``pip install kikuchipy[viz]`` will be removed in version 0.9. Please install
    manually or via ``pip install kikuchipy[all]`` instead.

.. _install-with-anaconda:

With Anaconda
=============

To install with Anaconda, we recommend you install it in a
:doc:`conda environment <conda:user-guide/tasks/manage-environments>` with the
`Miniconda distribution <https://docs.conda.io/en/latest/miniconda.html>`__.
To create an environment and activate it, run the following::

   conda create --name kp-env python=3.9
   conda activate kp-env

If you prefer a graphical interface to manage packages and environments, you can install
the `Anaconda distribution <https://docs.continuum.io/anaconda>`__ instead.

To install::

    conda install kikuchipy --channel conda-forge

To update kikuchipy to the latest release::

    conda update kikuchipy

To install a specific version of kikuchipy (say version 0.5.8)::

    conda install kikuchipy==0.5.8

.. _install-with-hyperspy-bundle:

With the HyperSpy Bundle
========================

kikuchipy is available in the HyperSpy Bundle. See :ref:`hyperspy:hyperspy-bundle` for
instructions.

.. warning::

    kikuchipy is updated more frequently than the HyperSpy Bundle, thus the installed
    version of kikuchipy will most likely not be the latest version available. See the
    `HyperSpy Bundle repository <https://github.com/hyperspy/hyperspy-bundle>`__ for how
    to update packages in the bundle.

.. _install-from-source:

From source
===========

To install kikuchipy from source, clone the repository from `GitHub
<https://github.com/pyxem/kikuchipy>`__, and install with ``pip``::

    git clone https://github.com/pyxem/kikuchipy.git
    cd kikuchipy
    pip install --editable .

See the contributing guide for :ref:`setting-up-a-development-installation` and keeping
it up to date.

Dependencies
============

kikuchipy builds on the great work and effort of many people.
This is a list of explicit package dependencies (some are `Optional dependencies`_):

==================================================== ============================================================
Package                                              Purpose
==================================================== ============================================================
:doc:`dask<dask:index>`                              Out-of-memory processing of data larger than RAM
:doc:`diffpy.structure <diffpy.structure:index>`     Handling of crystal structures
:doc:`diffsims <diffsims:index>`                     Handling of reciprocal lattice vectors and structure factors
:doc:`hyperspy <hyperspy:index>`                     Multi-dimensional data handling (EBSD class etc.)
:doc:`h5py <h5py:index>`                             Read/write of HDF5 files
:doc:`imageio <imageio:index>`                       Read image formats
:doc:`matplotlib <matplotlib:index>`                 Visualization
:doc:`numba <numba:index>`                           CPU acceleration
:doc:`numpy <numpy:index>`                           Handling of N-dimensional arrays
:doc:`orix <orix:index>`                             Handling of rotations and vectors using crystal symmetry
:doc:`pooch <pooch:api/index>`                       Downloading and caching of datasets
`pyyaml <https://pyyaml.org/>`__                     Parcing of YAML files
`tqdm <https://tqdm.github.io/>`__                   Progressbars
:doc:`scikit-image <skimage:index>`                  Image processing like adaptive histogram equalization
`scikit-learn <https://scikit-learn.org/stable/>`__  Multivariate analysis
:doc:`scipy <scipy:index>`                           Optimization algorithms, filtering and more
==================================================== ============================================================