Advanced Encryption Standard (AES) is a powerful and trustworthy cryptographic encryption tool to secure digital data. It accepts three key lengths – 128, 192, and 256 bits (16, 24 and 32 bytes, respectively).

AES cipher is abbreviated using the key length. For example, an AES cipher using a 256-bit key is abbreviated as AES 256. The longer the key, the more secure the system. Therefore, the rule of thumb is to use a 256-bit key.

This article discusses three methods you can use to fetch the path of the current Python file – getting the location of the Python script being executed is very useful if you need to load other files that are relative to the location of the script.

An Excel file can be converted into JSON using any of the following methods:

• Method 1: Using pandas and json packages, or
• Method 2: Using openpyxl and json packages.

This guide discusses how to convert a string column to float through examples in CSV using Python. These examples cover how to use pandas and csv packages in the conversion.

Slicing a list of lists in Python can be done in three main ways:

• Method 1: Using list comprehension,
• Method 2: Using for-loop and,
• Method 3: Using NumPy

Let’s go through them.

Comments in CSV files are those lines or parts of lines preceded by a specific character. For example, the following CSV data have comments introduced by the “#” symbol (the data is saved as employees-roles.csv).

JSON data can exist in two forms: in a file or data saved in a variable stored in memory. This article will show how to compress and decompress JSON data in both formats.

Breaking a long string across multiple lines in Python improves the readability of the code. There are three ways of defining line continuation in Python strings:

This article will discuss four methods for checking if a list within a dictionary is empty. Before that, let’s briefly review how to access items in the Python dictionary as a prerequisite.

This article involves the conversion of a CSV file into a UTF-8 encoding. This encoding supports over 1.1 million characters using 1 to 4-byte code units. This means the UTF-8 system can encode most of the characters you know in any language.

UTF-8 is the default encoding for Linux, Windows, and macOS. That means these OS systems will always support storing data in this encoding.

This article is for you if you need to convert a CSV file encoded in a different format into UTF-8.