Update collections imports for deprecations

shirtsgroup / InterMol

Conversion tool for molecular simulations

MIT License

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Update collections imports for deprecations #375

Closed mattwthompson closed 2 years ago

mattwthompson commented 3 years ago

Fixes the below deprecation warning, check by running python intermol/orderedset.py, may require 3.8+


DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3, and in 3.9 it will stop working
  collections.Set