General purpose shared utilities for the diffpy libraries.
The diffpy.utils package provides functions for extracting array data from variously formatted text files and wx GUI utilities used by the PDFgui program. The package also includes an interpolation function based on the Whittaker-Shannon formula that can be used to resample a PDF or other profile function over a new grid.
For more information about the diffpy.utils library, see the users manual at http://diffpy.github.io/diffpy.utils.
The preferred method is to use Miniconda Python and install from the "conda-forge" channel of Conda packages.
To add "conda-forge" to the conda channels, run the following in a terminal.
conda config --add channels conda-forge
We want to install our packages in a suitable conda environment.
The following creates and activates a new environment named diffpy-utils
conda create -n diffpy-utils python=3 conda activate diffpy-utils
Then, to fully install diffpy.utils
in our active environment, run
conda install diffpy.utils
Another option is to use pip
to download and install the latest release from
Python Package Index.
To install using pip
into your diffpy-utils
environment, we will also have to install dependencies
pip install numpy pip install diffpy.utils
For those planning to use functions in the diffpy.utils.wx
module, you will also need to install wxPython
.
Both of the following lines will install this package.
conda install wxPython pip install wxPython
If you prefer to install from sources, after installing the dependencies, obtain the source archive from
GitHub. Once installed, cd
into your diffpy.utils
directory
and run the following
pip install .
To check the installation integrity, if the following passes all checks, you are good!
pip install pytest python -m diffpy.utils.tests.run
diffpy.utils is an open-source software developed as a part of the DiffPy-CMI complex modeling initiative at the Brookhaven National Laboratory. The diffpy.utils sources are hosted at https://github.com/diffpy/diffpy.utils.
Feel free to fork the project and contribute. To install diffpy.utils in a development mode, with its sources being directly used by Python rather than copied to a package directory, use the following in the root directory
pip install -e .
Note that this is only supported for setuptools version 62.0 and above.
For more information on diffpy.utils please visit the project web-page
or email Prof. Simon Billinge at [email protected].