Function _expand_vars

Lib/sysconfig/__init__.py:260–275

(scheme, vars)

def _expand_vars(scheme, vars):
    res = {}
    if vars is None:
        vars = {}
    _extend_dict(vars, get_config_vars())
    if os.name == 'nt':
        # On Windows we want to substitute 'lib' for schemes rather
        # than the native value (without modifying vars, in case it
        # was passed in)
        vars = vars | {'platlibdir': 'lib'}

    for key, value in _INSTALL_SCHEMES[scheme].items():
        if os.name in ('posix', 'nt'):
            value = os.path.expanduser(value)
        res[key] = os.path.normpath(_subst_vars(value, vars))
    return res


def _get_preferred_schemes():