Number Formatting
The following table shows various ways to format numbers using python’s str.format(), includes examples for both float formatting and integer formatting.
To run examples use print("FORMAT".format(NUMBER));
So to get the output of the first example, you would run: print("{:.2f}".format(3.1415926));
| Number | Format | Output | Description |
|---|---|---|---|
| 3.1415926 | {:.2f} | 3.14 | 2 decimal places |
| 3.1415926 | {:+.2f} | +3.14 | 2 decimal places with sign |
| -1 | {:+.2f} | -1.00 | 2 decimal places with sign |
| 2.71828 | {:.0f} | 3 | No decimal places |
| 5 | {:0>2d} | 05 | Pad number with zeros (left padding, width 2) |
| 5 | {:x<4d} | 5xxx | Pad number with x’s (right padding, width 4) |
| 10 | {:x<4d} | 10xx | Pad number with x’s (right padding, width 4) |
| 1000000 | {:,} | 1,000,000 | Number format with comma separator |
| 0.25 | {:.2%} | 25.00% | Format percentage |
| 1000000000 | {:.2e} | 1.00e+09 | Exponent notation |
| 13 | {:10d} | 13 | Right aligned (default, width 10) |
| 13 | {:<10d} | 13 | Left aligned (width 10) |
| 13 | {:^10d} | 13 | Center aligned (width 10) |