Precision controls how many digits a numeric value displays in a Python f-string. Add a precision such as .2 or .4 before a numeric format specifier: .2f displays two digits after the decimal point, while .4f displays four. section 2.1.4 section 2.6
Format a decimal
decimal_number = 1.23456 print(f"Two digits: {decimal_number:.2f}") # Two digits: 1.23 print(f"Four digits: {decimal_number:.4f}") # Four digits: 1.2346
Use precision with several numeric presentation styles:
- Precision can also appear in practical output, such as displaying a price with two digits while escaping literal curly braces. section 2.1.6
