python - 列表索引超出范围 - 但它不是

Question

获取 'level = line[3].rstrip()' 的列表索引超出范围错误。仔细检查了所有内容，我在显示之前打印了列表，并且显示了超过 4 个值（我试图获得第四个值）。下面的代码和回溯，谢谢！

代码：

async def lbcmd(ctx):
    el = []
    for file in os.scandir(lpath):
        if file.path.endswith(".txt"):
            with open(file, 'r') as f:
                line = f.readlines()
                level = line[3].rstrip()
                xp = line[0].rstrip()
                exp = {
                    "user": file.name.strip(".txt"),
                    "exp": xp,
                    "level": level
                    }
                el.append(exp)
    el.sort(reverse=True, key=operator.itemgetter('exp'))
    desc = ("""
""")
    for exp in el:
         desc = desc + f"""Level {exp['level']} at {exp['exp']} exp - <@{exp['user']}>
"""
    embed=discord.Embed(title=f"Level leaderboard", description=desc, color=0x2f3136)
    await ctx.send(embed=embed)

追溯：

Traceback (most recent call last):
  File "C:\Users\jakec\AppData\Local\Programs\Python\Python39\lib\site-packages\discord\ext\commands\core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "C:\(A) Me\Coding\Python\jcjakec\Bots\conceptbot\conceptbot.py", line 144, in lbcmd
    level = line[3].rstrip()
IndexError: list index out of range

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

Traceback (most recent call last):
  File "C:\Users\jakec\AppData\Local\Programs\Python\Python39\lib\site-packages\discord\ext\commands\bot.py", line 902, in invoke
    await ctx.command.invoke(ctx)
  File "C:\Users\jakec\AppData\Local\Programs\Python\Python39\lib\site-packages\discord\ext\commands\core.py", line 864, in invoke
    await injected(*ctx.args, **ctx.kwargs)
  File "C:\Users\jakec\AppData\Local\Programs\Python\Python39\lib\site-packages\discord\ext\commands\core.py", line 94, in wrapped
    raise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: IndexError: list index out of range```

标签： pythonpython-3.xlistdictionarydiscord.py