Per history of python blog, everything in python are first class objects, that means all objects that could be named in the language (e.g., integers, strings, functions, classes, modules, methods, etc.) to have equal status. Th:at is, they can be assigned to variables, placed in lists, stored in dictionaries, passed as arguments, and so forth..

Iteration Python support iteration, for example, iterating over a list: for elem in [1, 2, 3]: print elem Iterating over a dict: for key in {'Google': 'G', 'Yahoo': 'Y', 'Microsoft': 'M'}: print key Iterating over a file: with open('path/to/file.csv', 'r') as file:...