The reload() is a previously imported module. If you’ve altered the module source file using an outside editor and want to test the updated version without leaving the Python interpreter, this is helpful. The module object is the return value.
Reloading modules in Python2.x
reload(module)
For above 2. x and <=Python3.3
import imp imp.reload(module)
Reloading modules for >=Python3.4 and above
import importlib importlib.reload(module)
How do I unload a Python module?
Unloading a Python module is not possible in Python yet.