（Python）IndexError：列表索引超出范围

Question

这个功能：def assisted_by(self, players):    text = self.event_text.split('Assisted')    if len(text) > 1:       print ([i for i in players if i in text[1]])       return [i for i in players if i in text[1]][0]    else:       return 'N/A'打印数百个项目并以一个空列表结束：(...)['Kelechi Iheanacho']['James Maddison']['Wilfried Zaha']['Emiliano Buendia'][]返回以下错误：  File "data_gathering.py", line 1057, in assisted_by    return [i for i in players if i in text[1]][0]IndexError: list index out of range如何在不删除[0]索引的情况下修复此错误？

Answer 1

您无法从空列表中获取项目 0。您可以在尝试之前检查长度：

def assisted_by(self, players):

    text = self.event_text.split('Assisted')

    if len(text) > 1:

        data = [i for i in players if i in text[1]]

        print(data)

        if data:

            return data[0]

    return 'N/A'

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