Python 3.6 literal strings

Question

I'm having a hard time finding what can be put inside literal strings.

For example, I've seen this code on the PEP above, yet I didn't find any information above about what it does.

>>> value = 1234
>>> f'input={value:#06x}'
'input=0x04d2'

Is there a tutorial for understanding string literals better?

it is like using format but takes the values from the scope...more or less... — Netwave, Apr 24 '18 at 10:30

score 3 · Accepted Answer · answered Apr 24 '18 at 10:36

What's new here is that you can just literally write value inside the f-string and Python will insert it.

The #06x part is nothing new and just a way to format numbers in hexadecimal representation. Python2:

>>> value = 1234
>>> '{:#06x}'.format(value)
'0x04d2'

# says to prefix the output (here with 0x).
06 says pad left with zeroes such that the output has at least length 6.
x is the hex format specifier.

You can read all about it here.

Python 3.6 literal strings

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