Counter: Purpose-Built for Counting

Concepts: pyFrequencyCount

The .most_common() Method Counter Arithmetic Counters support arithmetic operations. You can add, subtract, or find the intersection/union of counts: Python offers two main tools for counting. Here is how they compare. OrderedDict: Stable Order In Python 3.7 and later, regular dictionaries maintain insertion order. Before that, order was not guaranteed. OrderedDict explicitly guarantees order and provides additional methods for reordering. move_to_end() Reordering