全局...未定义python [英] global ... is not defined python

问题描述

我需要在python中逐个阅读一些单词，但出现此错误. "NameError:未定义全局名称'wordList'.

I need to read some words text by text in python, and I am getting this error. "NameError: global name 'wordList' is not defined.

i=0
with fitxer as f:
    for line in f:
        for word in line.split():
              wordList[i]=word
              i+1
return wordList

推荐答案

您需要先定义wordList.而且您不能在空列表中随机分配索引.您可以轻松地用新值扩展"列表.

You need to define wordList to begin with. And you cannot randomly assign indexes in an empty list. You can easily 'extend' the list with new values.

worldList = []
with fitxer as f:
    for line in f:
        wordList.extend(line.split())
return wordList

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