How to zero pad an f-string?

Question

Like this is how you can 0 pad a format string

for i in range(10):
   zeropad = "Value is{:03}.".format(i)
   print(zeropad)

and you get result as

Value is 000
Value is 001

and so on...

So, how can i do the same thing with f-strings??

I tried using the .zfill() function, but that doesnt work either

for i in range(1, 11):
  sentence = f"The value is {i(zfill(3))}."
  print(sentence)`

This gives an error

Traceback (most recent call last):
  File "main.py", line 2, in <module>
    sentence = f"The value is {i.zfill(3)}."
AttributeError: 'int' object has no attribute 'zfill'

Please [edit] your post to include the full error and it's traceback — mousetail, May 01 '23 at 11:47
This seems to be a good question, and not a duplicate. Padding integers with zeros is different from padding strings with spaces, and uses different f-string identifiers to do so. The correct answer (imo) of `f"The value is {i:03d}."` has not been posted here, and would not be posted in the "duplicate" string-related question. — mightypile, Jul 17 '23 at 21:29

score 0 · Answer 1 · answered May 01 '23 at 11:49

0

fix for your approach:

for i in range(1, 11):
    sentence = f"The value is {str(i).zfill(3)}."
    print(sentence)

f-string approach

for i in range(1, 11):
    sentence = f"The value is {i:03}."
    print(sentence)

answered May 01 '23 at 11:49

warped

8,947
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I got this error Traceback (most recent call last): File "main.py", line 2, in sentence = f"The value is {i:03)}." ValueError: Unknown format code ')' for object of type 'int' – The Witty Wizard May 01 '23 at 11:50
You have an extra `)` – slothrop May 01 '23 at 11:50

How to zero pad an f-string?

1 Answers1