fixmodel.py

from fastai.vision.all import *
from pathlib import Path, WindowsPath
def is_cat(x): return x[0].isupper()

# Load the learner
learn = load_learner('model.pkl')

# Replace the WindowsPath object with the platform-independent Path object
if isinstance(learn.path, WindowsPath):
    learn.path = Path(learn.path)

# Save the learner with the modified path object
learn.export('model_fixed.pkl')