You can do this with str.ljust(width[, fillchar]):
Return the string left justified in a string of length width. Padding is done using the specified fillchar (default is a space). The original string is returned if width is less than
len(s).
>>> 'hi'.ljust(10)
'hi '
Medium
medium.com › @johnidouglasmarangon › padding-f-strings-in-python-977b17edbd36
Padding f-strings in Python
February 18, 2022 - This is the most common way to use padding format, right padding with spaces. name = 'Bill Doe' balance = 13.566print(f"- {'Name':<8}: {name}") print(f"- {'Balance':8}: {balance}")>>> - Name : Bill Doe >>> - Balance : 13.566 · The < indicate ...
Top answer 1 of 14
1040
You can do this with str.ljust(width[, fillchar]):
Return the string left justified in a string of length width. Padding is done using the specified fillchar (default is a space). The original string is returned if width is less than
len(s).
>>> 'hi'.ljust(10)
'hi '
2 of 14
645
For a flexible method that works even when formatting complicated string, you probably should use the string-formatting mini-language,
using either f-strings
>>> f'{"Hi": <16} StackOverflow!' # Python >= 3.6
'Hi StackOverflow!'
or the str.format() method
>>> '{0: <16} StackOverflow!'.format('Hi') # Python >=2.6
'Hi StackOverflow!'
Videos
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Every F-String Trick In Python Explained - YouTube
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Python F-Strings: Advanced Tips and Tricks - YouTube
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13 Python f-string formatting tips - YouTube
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F-Strings Have A Lot of Format Modifiers You Don't Know - YouTube
GeeksforGeeks
geeksforgeeks.org › python › pad-or-fill-a-string-by-a-variable-in-python-using-f-string
Pad or fill a string by a variable in Python using f-string - GeeksforGeeks
July 15, 2025 - In Python, we can pad or fill a string with a variable character to make it a specific length using f-strings.
Reddit
reddit.com › r/learnpython › f-string and string right padding is driving me crazy
r/learnpython on Reddit: f-string and string right padding is driving me crazy
January 11, 2025 -
I know this is dumb, but something is strange. Everything works from the python3 interpreter but in my code it doesn't work. All I want is a string to be padded to the right.
This doesn't work
ename = f'"{endpoint}"'
print(f'{header} {ename:<30}!') I always get a single space before the ! I expect to get this (which I get in the interactive mode)
HEADER ENAME....................!
(note: I put dots there to make the spaces clear, they should be spaces!)
But I get
HEADER ENAME.!
If I change it to this, it works
ename = f'"{endpoint}"'
print(f'{header} {ename:!<30}!')But the padding is ! marks. (which was a test). If I change the ! to a space, that doesn't work.
Clearly I'm being dumb and missing something important. What an I missing? Thanks.
UPDATE: Appears to be caused by some post processing after python runs. Not sure what it is, but I don't believe it's python at the moment. Strange indeed!
UPDATE2: Well, I'm dumb. Problem was that this ultimately went through an HTML renderer and that would remove multiple spaces (exactly as it should). So 100% not a python issue. Thanks to all.
Top answer 1 of 3
4
Your code works for me. >>> header = "foo" >>> endpoint = "bar" >>> ename = f'"{endpoint}"' >>> print(f'{header} {ename:<30}!') foo "bar" !
2 of 3
2
If len(ename) < 30, that seems about right. I'm not sure what you're complaining about. If you want the padding on the other side, so ename is always next to the !, just swap < to >.
Fstring
fstring.help
fstring.help: Python f-string guide
An !s suffix to convert to a string explicitly is also supported, though often not needed (as this is the default behavior in most cases): ... By default, values are formatted to take up only as many characters as needed to represent the content. It is however also possible to define that a value should be padded to a specific length.
Python.org
discuss.python.org › python help
Allow f-string to dynamically pad spaces - Python Help - Discussions on Python.org
June 27, 2023 - Example: # This works >>> print(f"{3:4}") '3 ' # However this does not work. >>> pad_amount: int = ... >>> print(f"3:pad_amount") ValueError: Unknown format code 'a' for object of type 'int' # I know this is the intended behavior, however the only other way to do this (or if you have better ...
W3Schools
w3schools.com › python › python_string_formatting.asp
Python String Formatting
To format values in an f-string, add placeholders {}, a placeholder can contain variables, operations, functions, and modifiers to format the value. ... A placeholder can also include a modifier to format the value.
Built In
builtin.com › data-science › python-f-string
Guide to String Formatting in Python Using F-strings | Built In
F-string is a way to format strings in Python. It was introduced in Python 3.6 and aims to make it easier for users to add variables, comma separators, do padding with zeros and date format.
GeeksforGeeks
geeksforgeeks.org › python › add-padding-to-a-string-in-python
Add padding to a string in Python - GeeksforGeeks
July 23, 2025 - Padding a string involves adding ... methods to add padding to a string in Python. F-strings allow us to specify padding directly within the string using alignment specifiers....
Cheatography
cheatography.com › brianallan › cheat-sheets › python-f-strings-number-formatting
Python F-Strings Number Formatting Cheat Sheet by BrianAllan - Download free from Cheatography - Cheatography.com: Cheat Sheets For Every Occasion
Contains formulas, tables, and examples showing patterns and options focused on number formatting for Python's Formatted String Literals -- i.e., F-Strings.
Base64.Guru
base64.guru › home › base64 converter › base64 decode
Base64 to Image | Base64 Decode | Base64 Converter | Base64
Thank you, my friend. This tool has allowed me to perform great things. ... Is there an API we can use to do this? I wanted to implement this in my automation where i have a base64 then convert it to image and download. Thanks! ... Hi, I want to do exactly this but in Python. I got my base64 string and I want to convert that into a PIL.Image type.
DEV Community
dev.to › erictleung › print-fixed-fields-using-f-strings-in-python-26ng
Print fixed fields using f-strings in Python - DEV Community
August 20, 2020 - After searching a little… You might consider adding links to (a) 2.4.3. Formatted string literals (docs.python.org/3/reference/lexical_analysis.html#f-strings) and/or (b) PEP 498 – Literal String Interpolation
Python documentation
docs.python.org › 3 › library › stdtypes.html
Built-in Types — Python 3.14.6 documentation
See also index() and find(). ... Return the string right justified in a string of length width. Padding is done using the specified fillchar (default is an ASCII space).
DartPad
dartpad.dev
DartPad
An online Dart editor with support for console and Flutter apps.
W3Schools
w3schools.com › js › js_string_methods.asp
W3Schools.com
The padStart() method pads a string from the start.
Python documentation
docs.python.org › 3 › whatsnew › 3.14.html
What’s new in Python 3.14
Also added in 3.14: concurrent.futures.InterpreterPoolExecutor. ... Template strings are a new mechanism for custom string processing.
Nickmccullum
nickmccullum.com › complete-guide-python-f-strings
The Complete Guide to Python f-Strings | Nick McCullum
October 8, 2020 - Python f-Strings are an improved method for formatting strings in python. It was introduced in Python 3.6 as a concise, faster, more readable and less error-prone method of formatting strings. F-Strings are formatted string literals that allows variables, functions and expressions to be embedded ...
Real Python
realpython.com › python-formatted-output
A Guide to Modern Python String Formatting Tools – Real Python
February 1, 2025 - In modern Python, you have f-strings and the .format() method to approach the tasks of interpolating and formatting strings. These tools help you embed variables and expressions directly into strings, control text alignment, and use custom format specifiers to modify how values appear.
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › CSS › Reference
CSS reference - CSS | MDN
Use this CSS reference to browse an alphabetical index of all of the standard CSS properties, pseudo-classes, pseudo-elements, data types, functional notations and at-rules. You can also browse key CSS concepts and a list of selectors organized by type. Also included is a brief DOM-CSS / CSSOM ...
W3Schools
w3schools.com › python › python_strings_format.asp
Python - Format Strings
Python Examples Python Compiler Python Exercises Python Quiz Python Challenges Python Practice Problems Python Server Python Syllabus Python Study Plan Python Interview Q&A Python Bootcamp Python Training ... age = 36 #This will produce an error: txt = "My name is John, I am " + age print(txt) Try it Yourself » · But we can combine strings and numbers by using f-strings or the format() method!