• name: withsmalllong
  • description: use a version of ‘long’ in a C long long
  • command-line: –objspace-std-withsmalllong
  • command-line for negation: –no-objspace-std-withsmalllong
  • option type: boolean option
  • default: False

Enable “small longs”, an additional implementation of the Python type “long”, implemented with a C long long. It is mostly useful on 32-bit; on 64-bit, a C long long is the same as a C long, so its usefulness is limited to Python objects of type “long” that would anyway fit in an “int”.