Update app.py

fixed path error (windows export)

app.py

@@ -7,6 +7,11 @@ __all__ = ['learn', 'categories', 'examples', 'intf', 'OrdinalRegressionMetric',
 from fastai.vision.all import *
 import gradio as gr
 import os
+# needed when model was saved/ported on windows
+import platform
+import pathlib
+
+
 
 # %% ModelTester.ipynb 3
 from fastai.metrics import Metric
@@ -52,7 +57,9 @@ class OrdinalRegressionMetric(Metric):
         return metric_value
 
 # %% ModelTester.ipynb 4
-learn = load_learner("textfile3-2.pk1")
+plt = platform.system()
+if plt == 'Linux': pathlib.WindowsPath = pathlib.PosixPath
+learn = load_learner("newmodel.pk1")
 
 # %% ModelTester.ipynb 6
 categories = ("1","1-2","2","2-3","3","3-4","4","4-5","5")