python英文分词自定义函数
时间: 2023-08-31 14:08:54 浏览: 52
Sure! Here's an example of a custom function for English word tokenization in Python using the NLTK library:
```python
import nltk
from nltk.tokenize import word_tokenize
def custom_tokenizer(text):
# Add any additional preprocessing steps here
tokens = word_tokenize(text)
# Add any post-processing steps here if needed
return tokens
# Example usage
text = "This is an example sentence."
tokens = custom_tokenizer(text)
print(tokens)
```
In this example, the `custom_tokenizer` function takes a string `text` as input and performs word tokenization using the `word_tokenize` function from the NLTK library. You can add additional preprocessing or post-processing steps as needed in the function. Finally, the function returns a list of tokens.
Make sure you have the NLTK library installed before running this code. You can install it using `pip install nltk`.