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: “Then we proceeded with the with open statement.”

A block of code is set as follows:

def gets_csv_first_line (csv_file):
    logging.info(f"Starting function to read first line")
    try:
        with open(csv_file, 'r') as file:
            logging.info(f"Reading file")

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

$ python3 –-version
Python 3.8.10

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: “Then, when we selected showString at NativeMethodAccessorImpl.java:0, which redirected us to the Stages page.”

Tips or important notes

Appear like this.