python Pandas和KeyError中的一些问题

编程问答 2022-05-27

问题描述

Traceback (most recent call last):
  File "C:\Python\python37\lib\site-packages\pandas\core\indexes\base.py",line 3080,in get_loc
    return self._engine.get_loc(casted_key)
  File "pandas\_libs\index.pyx",line 70,in pandas._libs.index.IndexEngine.get_loc
  File "pandas\_libs\index.pyx",line 101,in pandas._libs.index.IndexEngine.get_loc
  File "pandas\_libs\hashtable_class_helper.pxi",line 1625,in pandas._libs.hashtable.Int64HashTable.get_item
  File "pandas\_libs\hashtable_class_helper.pxi",line 1632,in pandas._libs.hashtable.Int64HashTable.get_item
KeyError: 20

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Users\muh\Desktop\RollercoinBot-master\bot.py",line 232,in <module>
    main()
  File "C:\Users\muh\Desktop\RollercoinBot-master\bot.py",line 226,in main
    bot().play()
  File "C:\Users\muh\Desktop\RollercoinBot-master\bot.py",line 161,in play
    self.get_coin_fields()
  File "C:\Users\muh\Desktop\RollercoinBot-master\bot.py",line 177,in get_coin_fields
    self.coin_pos.append(matches['BBox'][i])
  File "C:\Python\python37\lib\site-packages\pandas\core\series.py",line 824,in __getitem__
    return self._get_value(key)
  File "C:\Python\python37\lib\site-packages\pandas\core\series.py",line 932,in _get_value
    loc = self.index.get_loc(label)
  File "C:\Python\python37\lib\site-packages\pandas\core\indexes\base.py",line 3082,in get_loc
    raise KeyError(key) from err
KeyError: 20

我无法解决这个问题。我花了很多时间在这上面，现在我放弃了。我做了一个机器人。我这样做是为了方便我，因为我不想在网站上花时间。第一次尝试时效果很好，但是当代码循环时，我收到了这样的错误。

def get_coin_fields(self):
        screen = cv2.imread(screen_grab())
        matches = matchTemplates(
            [("card",cv2.imread("rc_items/coinflip_back.png"))],screen,N_object=float("inf"),score_threshold=0.5,#maxOverlap=0.25,searchBox=None)
        for i in range(len(matches['BBox'])):
            self.coin_pos.append(matches['BBox'][i])

解决方法

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