Fix GPX file loading errors

src/otGpxTrack/Base.py

@@ -60,7 +60,7 @@ def __init__(self, gpx_file_path):
 
     def _load_gpx(self):
         """Load and parse the GPX file."""
-        with open(self.gpx_file_path, "r") as f:
+        with open(self.gpx_file_path, "rb") as f:
             self.gpx = gpxpy.parse(f)
 
     def _extract_points(self):
@@ -378,8 +378,8 @@ def simulate_ar1_speeds(self, segment_indices, sigma_tot=2.5, phi=0.9, n_sims=10
 
         # Calculate statistics using OpenTURNS
         mean_speed = v_simulees.computeMean()[0]
-        lower = ot.Sample.computeQuantilePerComponent(v_simulees, 0.025)[0]
-        upper = ot.Sample.computeQuantilePerComponent(v_simulees, 0.975)[0]
+        lower = ot.Sample.computeQuantilePerComponent(v_simulees, 0.025)[0][0]
+        upper = ot.Sample.computeQuantilePerComponent(v_simulees, 0.975)[0][0]
 
         return mean_speed, lower, upper, v_simulees
 

src/otGpxTrack/main.py

@@ -25,7 +25,7 @@ def __init__(self, gpx_file_path):
 
     def _load_gpx(self):
         """Load and parse the GPX file."""
-        with open(self.gpx_file_path, "r") as f:
+        with open(self.gpx_file_path, "rb") as f:
             self.gpx = gpxpy.parse(f)
 
     def _extract_points(self):

streamlitApp/app.py

@@ -89,28 +89,32 @@ def main():
                 with cols[i]:
                     if (example_dir / example_file).exists():
                         if st.button(f"Load {example_file}", use_container_width=True):
+                            # Create a temporary file with the example content
                             with open(example_dir / example_file, "rb") as f:
-                                uploaded_file = f.read()
-                                uploaded_file = tempfile.NamedTemporaryFile(
-                                    delete=False, suffix=".gpx"
-                                )
-                                uploaded_file.write(uploaded_file)
-                                uploaded_file.seek(0)
+                                file_content = f.read()
+                            temp_file = tempfile.NamedTemporaryFile(
+                                delete=False, suffix=".gpx", mode='wb'
+                            )
+                            temp_file.write(file_content)
+                            temp_file.close()
+                            uploaded_file = temp_file
 
     if uploaded_file is not None:
         # Process the uploaded file
         try:
             with st.spinner("Processing GPX file..."):
                 # Save to temp file
                 if hasattr(uploaded_file, "name"):
+                    # This is a temp file from example loading
                     temp_file_path = uploaded_file.name
                 else:
+                    # This is a Streamlit UploadedFile
                     temp_file = tempfile.NamedTemporaryFile(
-                        delete=False, suffix=".gpx"
+                        delete=False, suffix=".gpx", mode='wb'
                     )
                     temp_file.write(uploaded_file.getvalue())
-                    temp_file_path = temp_file.name
                     temp_file.close()
+                    temp_file_path = temp_file.name
 
                 # Load the track
                 track = GpxTrack(temp_file_path)