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

CodeInText: 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: "Once complete, remember to add the following lines to the end of ~/.bashrc using your favorite editor (we used vim)."

A block of code is set as follows:

import glob 
import numpy as np 
import os 
import shutil 
from utils import log_progress 
 
np.random.seed(42) 

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

preprocessor = Preprocess()
corpus_to_seq = preprocessor.fit(corpus=corpus)

holdout_corpus = test_df['review'].values
holdout_target = test_df['sentiment'].values
holdout_corpus_to_seq = preprocessor.transform(holdout_corpus)

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

ubuntu@ip:~$ mkdir ssl
ubuntu@ip:~$ cd ssl
ubuntu@ip:~/ssl$

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Once you launch your instance, you can check out the Instances section and try to connect to the instance."