What are f-strings and why are they so awesome?

f-strings is a new streamlined way of formatting strings that came with Python 3.6. Traditionally you would format a string like this:

employee = 'Bob'
role = 'Manager'
company = 'Amazon'
print('{} is a {} at {}.'.format(employee, role, company))

With f-strings you can do the same this with the following code:

employee = 'Bob'
role = 'Manager'
company = 'Amazon'
print(f'{employee} is a {role} at {company}')

Expressions in f-string

You can use python expressions inside of your curly braces.

name = 'Dog Dog'
age = 4
print(f'{name} is {age * 7} in dog years')

Performance considerations

f-strings are fast, twice as fast as format() as they are stored as bytecode.

Why you should vote me as witness

Witness & Administrator of four full nodes

_X48EJ

My recent popular posts

STEEM, STEEM Power, Vests, and Steem Dollars. wtf is this shit?
The truth and lies about 25% curation, why what you know is FAKE NEWS
WTF is a hardware wallet, and why should you have one?
GINABOT - The Secret to your Sanity on Steemit
How to calculate post rewards
Use SSH all the time? Time for a big boy SSH Client
How to change your recovery account
How curation rewards work and how to be a kick ass curator
Markdown 101 - How to make kick ass posts on Steemit
Work ON your business, not in your business! - How to succeed as a small business
You are not entitled to an audience, you need to earn it!
How to properly setup SSH Key Authentication - If you are logging into your server with root, you are doing it wrong!
Building a Portable Game Console