How do I pad a numeric string with zeroes to the left, so that the string has a specific length?

To answer your second question, string formatting happens at the same time as any other operation - when the string formatting expression is evaluated. And Python, not being a lazy …

13 mrt. 2017 · I want to keep it simple and use the new capabilities offered by the f-string and not revert back beyond the python versions which pre-date what I am currently comfortable with. I …

15 apr. 2011 · I want to fill out a string with spaces. I know that the following works for zero's:

I find your speed comparisons interesting, as it is significantly different on my machine (Python 3.6.2 from Anaconda): the fstring version takes 0.0845usec while the format version takes …

I have a string in which I would like curly-brackets, but also take advantage of the f-strings feature. Is there some syntax that works for this? Here are two ways it does not work. I would like to

f-strings (python 3) You can avoid having to double the curly brackets by using f-strings ONLY for the parts of the string where you want the f-magic to apply, and use regular (dumb) strings for …

27 jun. 2017 · The other answers give ideas for how to put the newline character into a f-string field. However, I would argue that for the example the OP gave (which may or may not be …

I get what the new f strings in python 3.6 do, but what about the ending !r as found in the code snip below.

Since it seemed arbitrary, inconsistent and counterintuitive for the f-strings not to follow the usual Python syntax, with the introduction of Python 3.12, such limitations have been lifted, thereby …