Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “This command will pull the hello-world image from the Docker Hub public repository and run the application in it. “

A block of code is set as follows:

import pandas as pd
url = 'https://raw.githubusercontent.com/jbrownlee/Datasets/master/pima-indians-diabetes.data.csv'
df = pd.read_csv(url, header=None)
df["newcolumn"] = df[5].apply(lambda x: x*2)
print(df.columns)
print(df.head())
print(df.shape)

Any command-line input or output is written as follows:

$ sudo apt install docker.io

This is how the filename above the code snippet will look:

Cjava.py

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “You should ensure that the Use WSL 2 instead of Hyper-V option is selected on the Configuration page.”

Tips or important notes

Appear like this.