Use str.format() with “{:.2f}” as string and float as a number to display 2 decimal places in Python. Call print and it will display the float with 2 decimal places in the console. Simple example
code use str.format(number) with “{:.2f}” as string and float as a number to return a string representation of the number with two decimal places. Output: How to display a float with two decimal places?Answer: Use the string formatting operator for that:
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Do comment if you have any doubts and suggestions on this Python decimal places code.
Degree in Computer Science and Engineer: App Developer and has multiple Programming languages experience. Enthusiasm for technology & like learning technical. Here is an example to format a float to two or three decimal points in Python.
The Or you can format a float using the Python
f-strings. The f-string is a string with Python v2.7 introduced a new string fomatting method, that is now the default in Python3. I started this string formatting cookbook as a quick reference to help me format numbers and strings. Thanks to other contributors I’ve expanded the examples over time. Python 3.6 introduced, formatted string literals, often referred to as f-strings as another method to help format strings.
Jump to the new F-strings section below. Number FormattingThe following table shows various ways to format numbers using Python’s str.format(), including examples for both float formatting and integer formatting. To run examples use: To get the output of the first example, formatting a float to two decimal places, you would run:
string.format() basicsHere are a couple of examples of basic string substitution, the
You can also use the numeric position of the variables and change them in the strings, this gives some flexibility when doing the formatting, if you make a mistake in the order you can easily correct without shuffling all the variables around.
💡 Tip: You can use
Older % string formatterPrior to python 2.6, the way to format strings tended to be a bit simpler, though limited by the number of arguments it can receive. These methods still work as of Python 3.3, but there are veiled threats of deprecating them completely though no time table. [PEP-3101] Formatting a floating point number:An example comparing the older
Multiple Substitution ValuesAn example comparing variable substitution:
Not Enough ArgumentsUsing the older format method, I would often get the errors: TypeError: not enough arguments for format string or TypeError: not all arguments converted during string formatting because I miscounted my substitution variables, doing something like the following made it easy to miss a variable. The new Python string formatter you can use numbered parameters so you don’t have to count how many you have, at least on half of it.
More String Formatting with .format()The format() function offers a fair amount of additional features and capabilities, here are a few useful tips and tricks using .format() Named ArgumentsYou can use the string format as a template engine using named arguments, instead of requiring a strict order.
💡 If you are using Python 3.6 or greater, see the f-strings formatting below for an easier way to create template–they also compute faster interpolations! Reuse Same Variable Multiple TimesUsing % to format requires a strict ordering of variables, the
Convert Values to Different BasesA surprising use, you can use the string format command to convert numbers to different bases. Use the letter in the formatter to indicate which number base: decimal, hex, octal, or binary. This example formats the number
Use Format as a FunctionYou can use
Hat tip to earthboundkids who provided this on reddit. Using format as a function can be used to adjust formating by user preference.
InternationalizationTo use locale specific formatting for numbers, you need to first set the locale,
and then use the formating code Here is an example, setting locale and formatting a number to display the proper separator:
Escaping BracesIf you need to use braces when using
Table Formatting DataUse the width and the left and right justification to align your data into a nice table format. Here’s an example to show how to format:
This would output: | Andre Iguodala | 4 | 3 | 7 | | Klay Thompson | 5 | 0 | 21 | | Stephen Curry | 5 | 8 | 36 | | Draymon Green | 9 | 4 | 11 | | Andrew Bogut | 3 | 0 | 2 | F-StringsPython 3.6 introduced formatted string literals–yet another method of formatting strings–referred to as f-strings because you start the string specifying an
Formatted string literals support running functions inside of the brackets
1. Do math with f-strings:
2. Call functions with f-strings;
You can use f-strings using the three different type of quotation marks in Python, single, double, or triple quotes. The following will all output the same:
The one thing you’ll want to be careful is mixing the two formats, if you try to use SyntaxError: f-string: empty expression not allowed Each set of brackets used in an f-string requires a value or variable. Resources
What does it mean 2f in Python?2f means to round up to two decimal places. You can play around with the code to see what happens as you change the number in the formatter.
What is %d and %f in Python?For example, "print %d" % (3.78) # This would output 3 num1 = 5 num2 = 10 "%d + %d is equal to %d" % (num1, num2, num1 + num2) # This would output # 5 + 10 is equal to 15. The %f formatter is used to input float values, or numbers with values after the decimal place.
What is 3f in Python?3 is for the number of decimals after the point. That means that the real value to be printed will have 3 digits after the point.
What is meaning of 2f in C?2f" tells the printf method to print a floating point value (the double, x, in this case) with 2 decimal places. Similarly, had we used "%. 3f", x would have been printed rounded to 3 decimal places.
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