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Conventions used 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: [email protected]:~$ mkdir ssl [email protected]:~$ cd ssl [email protected]:~/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.” Warnings or important notes appear like this. Tips and tricks appear like this.