name 'd2l' is not defined
时间: 2023-04-19 16:00:08 浏览: 341
这个错误提示意味着在当前的代码环境中,变量名为'd2l'的对象没有被定义。可能是因为你没有正确导入相关的模块或库,或者是因为你在代码中使用了一个未定义的变量名。你需要检查代码中的拼写错误和语法错误,确保所有的变量名都被正确定义和赋值。
相关问题
d2l.DATA_HUB['cmn-eng'] = (d2l.DATA_URL + 'cmn-eng.zip', '94646ad1522d915e7b0f9296181140edcf86a4f5') #@save def read_data_nmt(): """载入中文-英文数据集""" with open(d2l.download('cmn-eng'), 'r') as f: lines = f.readlines() return lines raw_text = read_data_nmt() raw_text[:20] def preprocess_nmt(text): """预处理“英语-汉语”数据集""" new_lines=[re.sub('[^A-Za-z]+', ' ', line).strip().lower() for line in lines] text = preprocess_nmt(raw_text) print(text[:80]) 报这个错NameError Traceback (most recent call last) Cell In[52], line 6 3 """预处理“英语-汉语”数据集""" 4 new_lines=[re.sub('[^A-Za-z]+', ' ', line).strip().lower() for line in lines] ----> 6 text = preprocess_nmt(raw_text) 7 print(text[:80]) Cell In[52], line 4, in preprocess_nmt(text) 2 def preprocess_nmt(text): 3 """预处理“英语-汉语”数据集""" ----> 4 new_lines=[re.sub('[^A-Za-z]+', ' ', line).strip().lower() for line in lines] NameError: name 'lines' is not defined 怎验解决
在preprocess_nmt函数中,你使用了名为"lines"的变量,但是该变量未在preprocess_nmt函数中定义。你需要将函数参数text改为lines或者在函数中使用正确的变量名称。修改后的代码如下:
```python
import re
import d2lzh as d2l
d2l.DATA_HUB['cmn-eng'] = (d2l.DATA_URL + 'cmn-eng.zip',
'94646ad1522d915e7b0f9296181140edcf86a4f5')
def read_data_nmt():
"""载入中文-英文数据集"""
with open(d2l.download('cmn-eng'), 'r') as f:
lines = f.readlines()
return lines
def preprocess_nmt(lines):
"""预处理“英语-汉语”数据集"""
new_lines=[re.sub('[^A-Za-z]+', ' ', line).strip().lower() for line in lines]
return new_lines
raw_text = read_data_nmt()
text = preprocess_nmt(raw_text)
print(text[:20])
```
运行该代码后,应该可以正确输出预处理后的英语-汉语数据集的前20行。
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