fix bug

.gitignore

@@ -2,4 +2,5 @@
 __pycache__/
 *.pyc
 .npz
-ic_cache/
+ic_cache/
+.idea/

.idea/AIFS-space.iml

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="PYTHON_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/.venv" />
-    </content>
-    <orderEntry type="jdk" jdkName="Python 3.12 (AIFS-space)" jdkType="Python SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-  <component name="PyDocumentationSettings">
-    <option name="format" value="NUMPY" />
-    <option name="myDocStringFormat" value="NumPy" />
-  </component>
-</module>

.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/AIFS-space.iml" filepath="$PROJECT_DIR$/.idea/AIFS-space.iml" />
-    </modules>
-  </component>
-</project>

aifs/initial_conditions.py

@@ -53,7 +53,10 @@ def _try_load(date: datetime.datetime, cache_dir: Path):
     """Return ``(fields_dict, path)`` if cached, else ``(None, None)``."""
     path = _cache_path(date, cache_dir)
     if path.exists():
-        return dict(np.load(str(path))), path
+        try:
+            return dict(np.load(str(path))), path
+        except Exception:
+            path.unlink()
     return None, None
 
 

app.py

@@ -20,6 +20,13 @@ import tempfile
 
 from aifs.device import  device_label
 
+import shutil
+
+# Clear corrupted IC cache on startup
+if os.path.exists("ic_cache"):
+    shutil.rmtree("ic_cache")
+    os.makedirs("ic_cache", exist_ok=True)
+
 
 PLOTTABLE_FIELDS = [
     "100u", "100v", "10u", "10v", "2t", "msl", "sp", "tcw", "swh", "mwp",