[Tom27]

Hi, I don't understand, i found example python file/program on python.hotexamples, that use calibre library:

from calibre import as_unicode
from calibre.ebooks.metadata.pdf import page_images
from calibre.gui2 import error_dialog, file_icon_provider
from calibre.ptempfile import PersistentTemporaryDirectory
...

Question:
1. Where I can get/download calibre library, calibre python file for import?
Need I install on my computer calibre first?
Because, example python program don't execute, i can't import from calibre anything..
2. I download files from github: kovidgoyal/calibre , but didn't find calibre.py or something
If you can help me, how it works and what need to do, i am very appreciation for help, because i don't understand in what direction i should to move.

Thank you
OS: Windows or linux