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Python 3.6 - Formatted string literals

Python 3.6 has a nice new feature:
formatted string literals.

 You can insert in string text variables like this

 >>> a = 100
>>> print(f'What will you get if you add 50 to {a}? Yes, you will have {a + 50}')
'what will you get if you add 50 to 100? Yes you will have 150'



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