fix: remove logger during serialization for distance restraint class

src/aria/core/tools.py

@@ -82,11 +82,18 @@ def Dump(this, filename, mode='w', as_string=0, gzip=0):
         open_func = open
 
     # Issues if we try to dump the logger since it contains the log file instance
-    for foo in this.items():
-        # foo = getattr(this, foo)
-        print(foo)
-        if hasattr(foo, "logger"):
-            delattr(foo, "logger")
+    # TODO: do better testing
+    def remove_logger(this):
+        if hasattr(elt, "items"):
+            for foo in elt.items():
+                if hasattr(foo, "logger"):
+                    delattr(foo, "logger")
+
+    if type(this) == list:
+        for elt in this:
+            remove_logger(elt)
+    else:
+        remove_logger(this)
 
     f = open_func(filename, mode)
     try: