I want to pad some percentage values so that there are always 3 units before the decimal place. With ints I could use '%03d' - is there an equivalent for floats?
'%.3f' works for after the decimal place but '%03f' does nothing.
+10
A:
'%03.1f' works (1 could be any number, or empty string):
>>> "%06.2f"%3.3
'003.30'
>>> "%04.f"%3.2
'0003'
Note that the field width includes the decimal and fractional digits.
wrang-wrang
2009-09-15 01:18:13
If the value is negative, the leading '-' will consume one of the field width count - "%06.2f" % -3.3 gives "-03.30", so if you must have 3 digits even if negative, you'll have to add one more to the field width. You can do that using the '*' fieldwidth value, and pass a computed value: value = -3.3; print "%0*.2f" % (6+(value<0),value)
Paul McGuire
2009-09-15 03:52:40