A Feature with an F-string that I Found out about by Accident

From author

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Look, here is the usual f-string

text = 'JUPI'
print(f'{text}') 
JUPI

If I add to it

• colon,
• placeholder char,
• and I will specify the required string length using the <

print(f'{text:-<15}') 

Then the rest of the line that is not occupied by the text will be filled with the selected character:

JUPI-----------

If you specify the length of the string via >, then you can fill in the line on the left side:

print(f'{text:->15}') 

-----------JUPI

Write in the comments how to fill in the line on both sides so that it turns out

-----JUPI------