From upstream, only those relevant to the LEON port have been taken.

Tests not taken because the compiler isn't included:

    syntax_unicode_nameesc.py

Tests not taken because there is no eval/exec:

    core_locals_eval.py
    syntax_spaces.py

Tests not taken because there is no file import:

    core_import_path.py
    core_import_prereg.py
    core_import_split_ns_pkgs.py
    modules_deque.py
    modules_json_nonserializable.py