it and fails. Or the destructor for a static string variable might be run prior to the destructor for another variable that contains a reference to that string. One way to alleviate the destructor problem static variables to contain POD data. This rule completely disallows vector (use C arrays instead), or string (use const char []). If you need a static or global variable of a class type, consider initializing defined types, the copy behavior is defined by the copy constructor and the copy-assignment operator. string is an example of a copyable type. A movable type is one that can be initialized and assigned from

that appears anywhere in a source file. This implies that: 1. All other whitespace characters in string and character literals are escaped. 2. Tab characters are not used for indentation. 2.3.2 Special depends only on which makes the code easier to read and understand, although Unicode escapes outside string literals and comments are strongly dis- couraged. Tip: In the Unicode escape case, and occasionally Example Discussion String unitAbbrev = "￿s"; Best: perfectly clear even without a comment. String unitAbbrev = "\u03bcs"; // "￿s" Allowed, but there’s no reason to do this. String unitAbbrev = "\u03bcs";

MyException. Do not use the two-argument form (raise MyException, 'Error message') or deprecated string-based exceptions (raise 'Error message'). • Modules or packages should define their own domain-specific of values at once. Cons: None. Decision: Fine. Use “Yields:” rather than “Returns:” in the doc string for generator functions. Lambda Functions link￿ Okay for one-liners. Definition: Lambdas define handle_multiple_of_ten() • Note that '0' (i.e., 0 as string) evaluates to true. 12 Deprecated Language Features link￿ Use string methods instead of the string module where possible. Use function call syntax

cont.  Compression  #16.1 Peter A. Boncz, Thomas Neumann, Viktor Leis: FSST: Fast Random Access String Compression. Proc. VLDB Endow. 13(11) 2020  #16.2 Daniel J. Abadi, Samuel Madden, Miguel Ferreira: