Each data type has its own unique set of properties and methods. In Python, you can declare a variable by assigning a value to it. For example, "x = 5" assigns the integer value 5 to the variable x.

from typing import Callable def foo(x: int ... more about the origins of type annotations in Python, and how to use them, in PEP (Python enhancement proposal) 484, available online here. Reuven Lerner ...

It outfits Python with new data types for loading data fast from tabular sources, and for manipulating, aligning, merging, and doing other processing at scale. Pandas is not part of the Python ...