Python查看对象或者方法使用帮助的三板斧

class SampleClass(object):
    """Summary of class here.

    Longer class information....
    Longer class information....

    Attributes:
        likes_spam: A boolean indicating if we like SPAM or not.
        eggs: An integer count of the eggs we have laid.
    """

    def __init__(self, likes_spam=False):
        """Inits SampleClass with blah."""
        self.likes_spam = likes_spam
        self.eggs = 0

    def public_method(self):
        """Performs operation blah."""


if __name__ == '__main__':
    
    # a = '5'  # xxxxx
    print(SampleClass.__doc__)
    print(dir(SampleClass))

    print(help(SampleClass))

    print(dir(SampleClass.public_method))
    print(help(SampleClass.public_method))