Adding padding for string types

Question

I have written below code to display a leading zero when the string representation of date has less than two digits?

'{}-{}-{:02d}'.format('6th', 'Jun', '1933')

But it is failing with an error:

ValueError: Unknown format code 'd' for object of type 'str'

There seem to be extra quotes in your example code, which makes for invalid Python. Can you please fix it? — ddejohn, May 16 '22 at 18:39
Does this answer your question? [How can I fill out a Python string with spaces?](https://stackoverflow.com/questions/5676646/how-can-i-fill-out-a-python-string-with-spaces) Specifically, [this answer](https://stackoverflow.com/a/5676884/843953) — Pranav Hosangadi, May 16 '22 at 18:45
I see this answer has been flagged as a duplicate but for your specific case you could try `'{:0>4}-{}-{}'.format('6th', 'Jun', '1933')` which will add a leading zero if there are less than 4 characters in the day representation. — Stuart Demmer, May 16 '22 at 19:29

score 0 · Answer 1 · edited May 16 '22 at 18:44

0

str.format doesn't need format codes in most situations. You could simply use:

'{}-{}-{:02}'.format('6th', 'Jun', '1933')

edited May 16 '22 at 18:44

Pranav Hosangadi

answered May 16 '22 at 18:38

Jasmijn

this is throwing an error `IndexError: Replacement index 1 out of range for positional args tuple` – meallhour May 16 '22 at 18:41
Did you remove the list display? – Jasmijn May 16 '22 at 19:00

1 Answers1