I've met words such as top-level modules and top-level packages in Python documentation several times. This is the documentation about such concepts. What does these words mean?
A top-level module is one which contains all other modules. A top-level module is not instantiated within any other module. For example, design modules are normally instantiated within top level testbench modules so that simulation can be run by providing input stimulus.
In Python, Modules are simply files with the “. py” extension containing Python code that can be imported inside another Python Program. In simple terms, we can consider a module to be the same as a code library or a file that contains a set of functions that you want to include in your application.
A module may contain functions, classes, lists, etc. Modules in Python can be of two types: Built-in Modules. User-defined Modules.
Modules can be nested inside each other. For example os.path
is a path
module nested inside os
module. Top level module is the topmost one. I this case, it's an os
module.
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