I was trying to generate a barcode by using this sample <http://www.101computing.net/barcode-generator-using-python/>

When I execute the code in PyCharm the below error is occurring on the very first line. 

`from processing import *`

Error:
`Traceback (most recent call last):
 File "C:/G/My Work/Learn/Python/Practice/BarCodeGen.py", line 1, in <module>
 from processing import *
ModuleNotFoundError: No module named 'processing'`

Can you provide an insight on how to import the package 'processing'.? Otherwise do you have any pointers on how to generate barcodes?