There are various methods for formatting float numbers in Python. The best way is to use the format() function to To format float values in Python.
Python float format example
Simple example code format float number in python.
x = 211911461911461819112146
y = 2 ** 70
z = x / y
print(z)
print("{:.2f}".format(z))
print(float("{:.2f}".format(z))) # float
Output:
Format float value using the round() Method
x = 211911461911461819112146 y = 2**70 z = x / y print(round(z, 2)) # 179.5
Using f-strings
x = 211911461911461819112146
y = 2**70
z = x / y
print(f'{z:.2f}') #179.50Use the %f Formatter
floatNumber = 1.9876
print("%f" % floatNumber) # 1.987600Python float format Table
| Number | Format | Output | Description |
|---|---|---|---|
| 3.1415926 | {:.2f} | 3.14 | Format float 2 decimal places |
| 3.1415926 | {:+.2f} | +3.14 | Format float 2 decimal places with sign |
| -1 | {:+.2f} | -1.00 | Format float 2 decimal places with sign |
| 2.71828 | {:.0f} | 3 | Format float with no decimal places |
| 4 | {:0>2d} | 04 | Pad number with zeros (left padding, width 2) |
| 4 | {:x<4d} | 4xxx | 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 |
| 0.35 | {:.2%} | 35.00% | Format percentage |
| 1000000000 | {:.2e} | 1.00e+09 | Exponent notation |
| 11 | {:11d} | 11 | Right-aligned (default, width 10) |
| 11 | {:<11d} | 11 | Left-aligned (width 10) |
| 11 | {:^11d} | 11 | Center aligned (width 10) |
Comment if you have any doubts or suggestions on this Python float topic.
Note: IDE: PyCharm 2021.3.3 (Community Edition)
Windows 10
Python 3.10.1
All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.