def get_paths(scheme=_get_default_scheme(), vars=None, expand=True):
_ensure_cfg_read()<EOL>if expand:<EOL><INDENT>return _expand_vars(scheme, vars)<EOL><DEDENT>else:<EOL><INDENT>return dict(_SCHEMES.items(scheme))<EOL><DEDENT>
Return a mapping containing an install scheme.

    ``scheme`` is the install scheme name. If not provided, it will
    return the default scheme for the current platform.