utils.py 文件源码

def stable_repr(obj):
    if isinstance(obj, str):
        return repr(obj)
    elif isinstance(obj, collections.abc.Mapping):
        items = [stable_repr(k) + ':' + stable_repr(obj[k]) for k in obj.keys()]
        return '{' + ', '.join(sorted(items)) + '}'
    elif isinstance(obj, collections.abc.Set):
        items = [stable_repr(x) for x in obj]
        return '{' + ', '.join(sorted(items)) + '}'
    elif isinstance(obj, collections.abc.Sequence):
        return '[' + ', '.join(stable_repr(k) for k in obj) + ']'
    else:
        return repr(obj)

#
# A utility function that returns output of a command