Modules
A
module is a file containing Python definitions and statements. To create
modules, you just need to set your coding game and save the files as .py
Look
at the code below,
Save
it as fibo.py
We
have successfully created a module and will use it in our code.
Using modules
Now
we can use the module we just created, by using the import statement:
Output
here will yield all Fibonacci numbers till 200.
Renaming modules
We
can simply rename any module as per our way of usage.
Create
an alias for mymodule called mx:
Built-in Modules
Built-in
modules are written in C and integrated with the Python interpreter. Each
built-in module contains resources for certain system-specific functionalities
such as OS management, disk IO, etc. The standard library also contains many
Python scripts (with the . py extension) containing useful utilities.
There
are several built-in modules in Python, which you can import whenever you like.
Output
Using the dir() Function
There
is a built-in function to list all the function names (or variable names) in a
module. The dir () function:
Note: The dir() function can be used on all modules, also the ones you create
yourself.
