Python, когда использовать серии Pandas, Numpy ndarrays или просто словари Python
# A useful rule of thumb is to use the simplest data structure that still
# satisfies your needs. If we rank the data structures from most simple
# to least simple, it usually ends up like this:
1. Dictionaries / lists
2. Numpy arrays
3. Pandas series / dataframes
# See source for more details
Charles-Alexandre Roy