Paul Romano

Defer loading element data until attribute access

3

Here's my quick attempt to reduce the overall import time by deferring the autoload of element data until one actually accesses the corresponding attribute from the `mendeleev` module, e.g. `mendeleev.Li`....

Reduce import time

6

**Is your feature request related to a problem? Please describe.** First off, thanks a lot for developing this wonderful package! I'm interested in using it as a dependency for other...

Ensure that Model.run() works when specifying a custom XML path

1

# Description The `Model.run()` method allows you to specify keyword arguments that are passed to `export_to_model_xml`. If you pass a `path` keyword argument, it will be used to write the...

Prepare for NumPy 2.0

2

# Description NumPy is going to be making a major release (2.0) soon that is backwards incompatible. Thankfully, there's very little we need to change in OpenMC in order to...

Leakage spectrum tally

1

There is currently a global tally for leakage. However, it only gives you total leakage. The ability to tally leakage within a given energy range should eventually be added.

I recently learned that the two naturally occurring isotopes of Ta are the first metastable state of Ta180 and the ground state of Ta181. ENDF/B-VIII.0 and earlier do not have...

Eliminate deprecation warnings from scipy and pandas

1

# Description Our test suite currently produces a few deprecation warnings from scipy: ``` tests/regression_tests/mg_convert/test.py::test_mg_convert /home/runner/work/openmc/openmc/openmc/mgxs_library.py:1922: DeprecationWarning: 'scipy.integrate.simps' is deprecated in favour of 'scipy.integrate.simpson' and will be removed in SciPy...

# Description A user shared with me an OpenMC model based on the ITER C-Model that had been converted from MCNP using csg2csg. The conversion strategy from csg2csg doesn't result...

## Description We have a few functions on the C++ side that have associated unit tests in Python (see `tests/unit_tests/test_math.py`) that predate our use of Catch2 for C++ unit tests....

# Description This PR updates a few things in our GitHub Actions workflows to ensure they still work on a new release. # Checklist: - [x] My code follows the...