from pickletools import optimize
时间: 2023-08-05 20:08:45 浏览: 45
`optimize` is a function from the `pickletools` module in Python. It is used to optimize the size of pickled data by removing unnecessary bytes and encoding data more efficiently.
Here's an example:
```python
import pickle
from pickletools import optimize
# create some data to pickle
data = {"name": "Alice", "age": 30, "city": "New York"}
# pickle the data
with open("data.pickle", "wb") as f:
pickle.dump(data, f)
# optimize the pickled data
with open("data.pickle", "rb") as f:
optimized_data = optimize(f.read())
# save the optimized data
with open("optimized_data.pickle", "wb") as f:
f.write(optimized_data)
```
In this example, the `optimize` function is used to optimize the pickled data before saving it to a file.