Top Highlights

• length (if len(somelist) == 0). Use if not somelist and assume empty values implicitly evaluate to False.
• The statement if somelist is implicitly True for non-empty values.
• standard library modules, third-party modules, your own modules. Each subsection should have imports in alphabetical order.
• two types that represent sequences of characters: bytes and str.
• To convert Unicode characters to binary data, you must use the encode method. To convert binary data to Unicode characters, you must use the decode method.