cpython

Change error message for array methods to use 'array' instead of 'list'. (#1853)

bpo-16500: Don't use string constants for os.register_at_fork() behavior (#1834)

Build docs in parallel (#1842)

Add reference to help('FORMATTING') in format() builtin (GH-166)

bpo-30248: Convert boolean arguments only once in _json. (#1423)