The dictionary functions in a similar fashion to the Python list, in that it is a collection of data. In this case, however, dictionaries hold key-value pairs instead of single values. For example ...

A Python library is a collection of useful functions and code that allow you to complete a number of tasks without needing to write the code from scratch. There are over 100,000 libraries ...

you’re best off using NumPy’s “broadcasting” functions—ways to execute operations across a whole array, or a slice, without looping in Python. Again, this is so all the performance ...