numbers = [23.23, 0.1233, 1.0, 4.223, 9887.2]
for x in numbers:
print("{:10.4f}".format(x))
prints
23.2300
0.1233
1.0000
4.2230
9887.2000
The format specifier inside the curly braces follows the Python format string syntax. Specifically, in this case, it consists of the following parts:
- The empty string before the colon means "take the next provided argument to
format()" – in this case thexas the only argument. - The
10.4fpart after the colon is the format specification. - The
fdenotes fixed-point notation. - The
10is the total width of the field being printed, lefted-padded by spaces. - The
4is the number of digits after the decimal point.
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.
Top answer 1 of 14
730
numbers = [23.23, 0.1233, 1.0, 4.223, 9887.2]
for x in numbers:
print("{:10.4f}".format(x))
prints
23.2300
0.1233
1.0000
4.2230
9887.2000
The format specifier inside the curly braces follows the Python format string syntax. Specifically, in this case, it consists of the following parts:
- The empty string before the colon means "take the next provided argument to
format()" – in this case thexas the only argument. - The
10.4fpart after the colon is the format specification. - The
fdenotes fixed-point notation. - The
10is the total width of the field being printed, lefted-padded by spaces. - The
4is the number of digits after the decimal point.
2 of 14
257
It has been a few years since this was answered, but as of Python 3.6 (PEP498) you could use the new f-strings:
numbers = [23.23, 0.123334987, 1, 4.223, 9887.2]
for number in numbers:
print(f'{number:9.4f}')
Prints:
23.2300
0.1233
1.0000
4.2230
9887.2000
Python 3 float to formatted string to always fill a fixed ...
EEVblog Captcha · We have seen a lot of robot like traffic coming from your IP range, please confirm you're not a robot · This security check has been powered by · CrowdSec More on eevblog.com
Trying to format a list of floats with f-strings
You can't format an entire list all at once. You have to format each number individually, and then unpack that to print it: print("Roots:", *(f"{x:.3f}" for x in roots)) or you could use join to combine the formatted numbers: print("Roots:", ' '.join(f"{x:.3f}" for x in roots)) More on reddit.com
6
2
July 23, 2018General way to print floats without the .0 part
I’m building SVG code using data interpolation (f-strings and .format), and I have elements (the size of the graph for one) that are internally floats but which are usually integers. But when printing floats, the .0 part is always included. Is there a standard str-interpolation idiom that ... More on discuss.python.org
19
0
May 19, 2024What is the function of ':g' in the python f-string?
Best explanation I could find https://stackoverflow.com/questions/41840613/understanding-the-python-g-in-string-formatting-achieving-java-string-format-b More on reddit.com
22
87
January 18, 2022Videos
13:08
Formatting Floats Inside Python F-Strings: Rounding & Percentages ...
Formatting your floats in Python - YouTube
19:43
How to Format and Round Floating-Point Numbers (Float) Using ...
03:13
Formatting Floats Inside Python F-Strings (Overview) (Video) – ...
07:28
Using F-Strings to Format and Round Floats (Video) – Real Python
Python
docs.python.org › 3 › library › string.html
string — Common string operations
When doing so, float() is used to convert the integer to a floating-point number before formatting.
Cjtu
cjtu.github.io › spirl › python_str-formatting.html
3.10. String Formatting (Interactive) — Scientific Programming<br>In Real Life
To print the following lines as 10 characters each, we would specify .f as the format code and Python will automatically add spaced in front to make the output 10 characters long: print(".f" % 1) print(".f" % 10) print(".f" % 100) print(".f" % 1000) print(".f" % 10000) ... Below we use the % operator after the string to include the three elements into the three locations denoted by % within the string. We use three different format codes for the three numbers included in the string: ... The float format code rounding to 2 decimal places .2f.
EEVblog
eevblog.com › forum › programming › python-3-float-to-formated-string-to-always-fill-a-fixed-number-of-characters
Python 3 float to formatted string to always fill a fixed ...
EEVblog Captcha · We have seen a lot of robot like traffic coming from your IP range, please confirm you're not a robot · This security check has been powered by · CrowdSec
Real Python
realpython.com › how-to-python-f-string-format-float
How to Format Floats Within F-Strings in Python – Real Python
April 24, 2024 - As you can see, your float has been rounded to two decimal places. You achieved this by adding the format specifier .2f into the replacement field. The 2 is the precision, while the lowercase f is an example of a presentation type. You’ll see more of these later. Note: When you use a format specifier, you don’t actually change the underlying number. You only improve its display. Python’s f-strings also have their own mini-language that allows you to format your output in a variety of different ways.
Medium
medium.com › @coucoucamille › float-formatting-in-python-ccb023b86417
Simple Float Formatting in Python | by Coucou Camille | Medium
June 15, 2022 - Simple Float Formatting in Python Python’s built-in format() function allows you to format float in any way you prefer. 1. Round Float to 2 Decimal Places Syntax: {:.2f}.format(num) for rounding to …
Reddit
reddit.com › r/learnpython › trying to format a list of floats with f-strings
r/learnpython on Reddit: Trying to format a list of floats with f-strings
July 23, 2018 -
roots = [sqrt(i) for i in numbers]
print(f'Roots: {roots}')So Im trying to gain control of the precision of my floats, as Im practicing list comprehension and such, this particular print doesn't work.
I really dig these new fstrings but I cant figure out where to put in the ':.3f in the code.
print(f'Roots: {[root for root in roots]}')This is as far as ive come but when i put in the formatter on root its 'invalid syntax'
Top answer 1 of 2
2
You can't format an entire list all at once. You have to format each number individually, and then unpack that to print it: print("Roots:", *(f"{x:.3f}" for x in roots)) or you could use join to combine the formatted numbers: print("Roots:", ' '.join(f"{x:.3f}" for x in roots))
2 of 2
1
Not the best, but for a one-liner you could use nested f-strings; print(f"Roots: {[f'{root:.3f}' for root in roots]}") Probably better to move the list comprehension outside of the outer f-string so you have some extra room for cleaning it up; formatted_roots = [f'{root:.3f}' for root in roots] print(f'Roots: {", ".join(root for root in formatted_roots)}') See here .
Python.org
discuss.python.org › python help
General way to print floats without the .0 part - Python Help - Discussions on Python.org
May 19, 2024 - I’m building SVG code using data interpolation (f-strings and .format), and I have elements (the size of the graph for one) that are internally floats but which are usually integers. But when printing floats, the .0 par…
Python.org
discuss.python.org › ideas
New format specifiers for string formatting of floats with SI and IEC prefixes - Page 2 - Ideas - Discussions on Python.org
May 20, 2023 - I was thinking of writing a PEP to support formatting floats with SI (decimal) and IEC (binary) prefixes natively for float (and maybe other types if makes sense) but wanted to feel it out first. I’ve implemented what I…
Python documentation
docs.python.org › 3 › tutorial › inputoutput.html
7. Input and Output — Python 3.14.6 documentation
The % operator (modulo) can also be used for string formatting. Given format % values (where format is a string), % conversion specifications in format are replaced with zero or more elements of values. This operation is commonly known as string interpolation.
PyFormat
pyformat.info
PyFormat: Using % and .format() for great good!
Of course it is also possible to format numbers. ... Similar to strings numbers can also be constrained to a specific width. ... Again similar to truncating strings the precision for floating point numbers limits the number of positions after the decimal point.
mkaz.blog
mkaz.blog › working-with-python › string-formatting
Python String Formatting: Complete Guide - mkaz.blog
This comprehensive guide covers everything you need to know about Python string formatting, from basic f-strings to advanced formatting techniques.
Real Python
realpython.com › python-string-formatting
Python String Formatting: Available Tools and Their Features – Real Python
December 2, 2024 - For details on this topic, check out the Converting Between Type Representations section in the Python’s Format Mini-Language for Tidy Strings tutorial. Here are a few examples of how to use some of the above specifiers in your strings: ... >>> "%d" % 123.123 # As an integer '123' >>> "%o" % 42 # As an octal '52' >>> "%x" % 42 # As a hex '2a' >>> "%e" % 1234567890 # In scientific notation '1.234568e+09' >>> "%f" % 42 # As a floating-point number '42.000000'
TutorialsPoint
tutorialspoint.com › how-to-format-a-floating-number-to-fixed-width-in-python
How to format a floating number to fixed width in Python?
November 13, 2024 - number = 838.65 # Right align with spaces (default) right_align = "{:>10}".format(number) print('Right Align:', right_align) # Left align with spaces left_align = "{:<10}".format(number) print('Left Align: ', left_align) # Center align with spaces center_align = "{:^10}".format(number) print('Center Align:', center_align) # Zero padding zero_padding = "{:010.2f}".format(number) print('Zero Padding:', zero_padding) ... Use f-strings for modern, readable formatting with f"{number:10.2f}" syntax.
Python Course
python-course.eu › python-tutorial › formatted-output.php
22. Formatted Output | Python Tutorial | python-course.eu
This is followed by the total number of digits the string should contain. This number includes the decimal point and all the digits, i.e. before and after the decimal point. Our float number 59.058 has to be formatted with 8 characters. The decimal part of the number or the precision is set to 2, i.e.
Note.nkmk.me
note.nkmk.me › home › python
Format Strings and Numbers in Python: format() | note.nkmk.me
May 18, 2023 - Built-in Functions - format() — Python 3.11.3 documentation · This function takes the original string (str) and number (int or float) to be formatted as its first argument, and the format specification string as its second argument.
Built In
builtin.com › data-science › python-f-string
Guide to String Formatting in Python Using F-strings | Built In
They provide a better way to format strings and make debugging easier, too. ... Summary: Python f-strings, introduced in version 3.6, allow cleaner string formatting by embedding variables directly. They support alignment, zero-padding, decimal precision, percentage display, comma separators and date formatting, making code more readable and debugging easier.
Python Reference
python-reference.readthedocs.io › en › latest › docs › functions › format.html
format — Python Reference (The Right Way) 0.1 documentation
The precision is a decimal number indicating how many digits should be displayed after the decimal point for a floating point value formatted with ‘f’ and ‘F’, or before and after the decimal point for a floating point value formatted with ‘g’ or ‘G’. For non-number types the field indicates the maximum field size - in other words, how many characters will be used from the field content. The precision is not allowed for integer values. Determines how the data should be presented. The available string presentation types are: ‘s’
DZone
dzone.com › coding › languages › python f-strings
Python F-Strings
August 22, 2023 - To format a number using F-strings, simply include the number inside the curly braces, followed by a colon and a format specifier. The format specifier defines how the number should be formatted, including its precision, width, and alignment.