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: "Select a folder and save the key, which will now have a .ppk file extension."

A block of code is set as follows:

cursor.execute("SELECT * from art_pieces")
data=cursor.fetchall()
data

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

from pymapd import connect
connection = connect(user="mapd", password= "{password}", 
     host="{my.host.com}", dbname="mapd")
cursor = connection.cursor()
sql_statement = """SELECT name FROM county;"""
cursor.execute(sql_statement)

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

conda install -c conda-forge geos

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: "To generate the pair from the EC2 Dashboard, select Key Pairs from the NETWORK & SECURITY group in the left panel after scrolling down."