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 thex
as the only argument. - The
10.4f
part after the colon is the format specification. - The
f
denotes fixed-point notation. - The
10
is the total width of the field being printed, lefted-padded by spaces. - The
4
is the number of digits after the decimal point.