Update patients_database.py

Author: MaxenceLarose

delia/databases/patients_database.py

@@ -53,7 +53,10 @@ def __init__(
         self.path_to_database = path_to_database
 
         if os.path.exists(path_to_database):
-            self._file = h5py.File(path_to_database, mode="r+")
+            try:
+                self._file = h5py.File(path_to_database, mode="r+")
+            except OSError:
+                self._file = h5py.File(path_to_database, mode="r")
         else:
             self._file = None
 
@@ -315,7 +318,10 @@ def create(
             patients_data_extractor.close()
             patients_data_extractor.reset()
 
-        self._file = h5py.File(self.path_to_database, "r+")
+        try:
+            self._file = h5py.File(self.path_to_database, mode="r+")
+        except OSError:
+            self._file = h5py.File(self.path_to_database, mode="r")
 
         return patients_data_extractor.patients_who_failed