Only load packages lazily in alias

qutech_util/__init__.py

 """This is the new name of the qutil module which is just an alias to qutil for backwards compatibility reasons."""
 import sys
-import qutil
+import lazy_loader
 
-from qutil import *
+import qutil
 
-__all__ = qutil.__all__
 __version__ = qutil.__version__
+__all__ = qutil.__all__
+
+for module_name in qutil.__all__:
+    globals()[module_name] = lazy_loader.load(f'qutil.{module_name}')
+
 sys.modules[__name__] = qutil
 
 del qutil
+
+del lazy_loader
 del sys