Counting words in the last line of a file

[snippsat]

Would someone kindly explain, {num:>{max_num}}?

It's string formatting,< ^ > aligned left middle and right.

>>> left = '<left aligned>'
>>> middle = '<stay in middle>'
>>> print(f'aaa {left:>20} bbb {middle:^30} ccc')
aaa       <left aligned> bbb        <stay in middle>        ccc


>>> print(f"Sammy has {4:4} red and {16:16}! blue balloons")
Sammy has    4 red and               16! blue balloons

 
>>> for word in 'f-strings are awesome'.split():
...     print(f'{word.upper():~^20}')
...     
~~~~~F-STRINGS~~~~~~
~~~~~~~~ARE~~~~~~~~~
~~~~~~AWESOME~~~~~~~
 
>>> for word in 'f-strings are awesome'.split():
...     print(f'{word.upper():~<20}')
...     
F-STRINGS~~~~~~~~~~~
ARE~~~~~~~~~~~~~~~~~
AWESOME~~~~~~~~~~~~~

>>> for word in 'f-strings are awesome'.split():
...     print(f'{word.upper():~>20}')
...     
~~~~~~~~~~~F-STRINGS
~~~~~~~~~~~~~~~~~ARE
~~~~~~~~~~~~~AWESOME