Python参数奇怪的不匹配

Question

在测试一些代码时，出现错误：

TypeError：Breadth_first_search（）从2到3个位置参数，但给出了4个位置参数

函数声明的参数位看起来像这样：

def breadth_first_search(self, id: int, level=None)

通话看起来像这样：

tree.breadth_first_search(parent_id)

据我所知，这应该是正确的。我不知道为什么它将一个参数（或两个参数，包括self）解释为四个。我缺少什么东西吗？

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为了完整性，这里是回溯：

Traceback (most recent call last):
  File "test.py", line 4, in <module>
    tree = FeatureQuery.load_feature_tree("general", inventory)
  File "D:\Speechcraft\Python\core\ling_query.py", line 201, in load_feature_tree
    FeatureQuery.load_feature_node_recursive(feature_inventory, tree, results, l)
  File "D:\Speechcraft\Python\core\ling_query.py", line 221, in load_feature_node_recursive
    parent = tree.breadth_first_search(parent_id)
  File "D:\Speechcraft\Python\core\phonological_units.py", line 37, in breadth_first_search
    return self.breadth_first_search(self, id, next_level)
TypeError: breadth_first_search() takes from 2 to 3 positional arguments but 4 were given

Answer 1

原来是一个愚蠢的错误。我不小心将

self作为参数包含在递归调用中。感谢转到user2357112 supports monica。