首页Traceback (most recent call last): File "D:\PyCharm\learning\1\BPmain.py", line 16, in <module> nn.train(train_input, train_output, num_epochs=500) File "D:\PyCharm\learning\1\BP.py", line 61, in train y = output_data.iloc[i] File "D:\anaconda\envs\mytest\lib\site-packages\pandas\core\indexing.py", line 895, in __getitem__ return self._getitem_axis(maybe_callable, axis=axis) File "D:\anaconda\envs\mytest\lib\site-packages\pandas\core\indexing.py", line 1501, in _getitem_axis self._validate_integer(key, axis) File "D:\anaconda\envs\mytest\lib\site-packages\pandas\core\indexing.py", line 1444, in _validate_integer raise IndexError("single positional indexer is out-of-bounds") IndexError: single positional indexer is out-of-bounds 进程已结束,退出代码1

Traceback (most recent call last): File "D:\PyCharm\learning\1\BPmain.py", line 16, in <module> nn.train(train_input, train_output, num_epochs=500) File "D:\PyCharm\learning\1\BP.py", line 61, in train y = output_data.iloc[i] File "D:\anaconda\envs\mytest\lib\site-packages\pandas\core\indexing.py", line 895, in getitem return self._getitem_axis(maybe_callable, axis=axis) File "D:\anaconda\envs\mytest\lib\site-packages\pandas\core\indexing.py", line 1501, in _getitem_axis self._validate_integer(key, axis) File "D:\anaconda\envs\mytest\lib\site-packages\pandas\core\indexing.py", line 1444, in _validate_integer raise IndexError("single positional indexer is out-of-bounds") IndexError: single positional indexer is out-of-bounds 进程已结束,退出代码1

时间: 2023-07-22 14:08:11 浏览: 115

浅谈Python traceback的优雅处理

刚接触Python的时候，简单的异常处理已经可以帮助我们解决大多数问题，但是随着逐渐地深入，我们会发现有很多情况下简单的异常处理已经无法解决问题了，如下代码，单纯的打印异常所能提供的信息会非常有限。 def func1(): raise Exception("--func1 exception--") def main(): try: func1() except Exception as e: print e if __name__ == '__main__': main() 执行后输出如下： –func1 exception– 通过示例，我们发现

非常抱歉，我之前的回答有误。根据错误信息，问题出现在文件 "D:\PyCharm\learning\1\BP.py" 的第 61 行，而不是第 16 行。根据错误信息和代码，问题出现在训练函数 `train` 中的以下行： ```python y = output_data.iloc[i] ``` 这里的 `output_data` 是一个 Pandas DataFrame 对象，而 `i` 的值超出了 `output_data` 的索引范围，导致了 "IndexError: single positional indexer is out-of-bounds" 错误。请确认您的 `train_output` 数据框的行数是否正确，以及在训练函数之前是否正确地处理了输入和输出数据。另外，请提供 `BP.py` 文件中 `train` 函数的相关代码，以便我更好地帮助您解决问题。

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