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Just like lists, individual elements and slices of arrays can be selected using bracket notation. Unlike lists, however, arrays also permit selection using other arrays. That is, we can use array selectors to filter for specific subsets of elements of other arrays.

Python NumPy - Indexing and Slicing Arrays

Python NumPy - Numerical Operations on Arrays

NumPy - Methods to Create Arrays

ndarray - Methods and Data Type

What is NumPy in Python

How to loop over python dictionaries and Numpy arrays

While Loop in Python

For Loop in Python

Conditional Statements in Python

Logical Operators in Python

Comparison operators, also known as relational operators, are used to compare values in Python objects. There are six relational operators:

Comparison Operators in Python

In this lesson, we will learn about a new data type in Python called Dictionaries. Dictionary is one of the most powerful data structures in Python. To understand what dictionaries are, let’s take an example.

Let’s say that an investor holds five stocks in his stock portfolio and he tallies the latest prices for each of these stocks. Let’s say the stocks are Google (GOOGL), Facebook (FB), Microsoft (MSFT), Apple (AAPL), and Amazon (AMZN). In Python, we can create a list to store the stock prices as shown below:

Python Dictionaries

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