Version 0.16.0

• Particle class:
  • Added finditer, which returns an iterator instead of a complete list like findall.
  • Method find deprecated. It will be removed from version 0.17.0 onwards.
    Please use the more general findall method, or the new finditer method.
• PDGID class:
  • New functions is_sm_lepton, is_sm_quark and is_excited_quark_or_lepton
    for qualification of PDG IDs.
  • is_composite_quark_or_lepton deprecated in favour of better named is_excited_quark_or_lepton.
  • is_lepton fixed to match the behaviour of the related is_quark,
    i.e. now excited leptons are not considered leptons (only SM and 4th generation leptons).
  • Improvements to documentation.
  • Test suite enhanced accordingly.
• Data files:
  • Added the 2021 PDG data table .mcd file, now default.
  • Version 10 of package CSV data files:
    • Since PDG 2021 information now the default.
  • Lifetimes of neutrinos set to infinity.
  • Check added for duplicate entries in .mcd PDG data files.
• Tests:
  • Tests of coverage added back, using Codecov on GHAs.
  • CI enhanced, e.g. adding codespell, isort and flake8 checks tp pre-commit hooks.
• Miscellaneous:
  • Support for Python 3.10 added.
  • Several FutureWarning warnings fixed.
  • Code modernisation.