Deprecated since version 2.6: The fpformat
module has been removed in Python 3.
The fpformat
module defines functions for dealing with floating point numbers representations in 100% pure Python.
Note
This module is unnecessary: everything here can be done using the %
string interpolation operator described in the String Formatting Operations section.
The fpformat
module defines the following functions and an exception:
fpformat.fix(x, digs)
Format x as [-]ddd.ddd
with digs digits after the point and at least one digit before. If digs <= 0
, the decimal point is suppressed.
x can be either a number or a string that looks like one. digs is an integer.
Return value is a string.
fpformat.sci(x, digs)
Format x as [-]d.dddE[+-]ddd
with digs digits after the point and exactly one digit before. If digs <= 0
, one digit is kept and the point is suppressed.
x can be either a real number, or a string that looks like one. digs is an integer.
Return value is a string.
exception fpformat.NotANumber
Exception raised when a string passed to fix()
or sci()
as the x parameter does not look like a number. This is a subclass of ValueError
when the standard exceptions are strings. The exception value is the improperly formatted string that caused the exception to be raised.
Example:
>>> import fpformat >>> fpformat.fix(1.23, 1) '1.2'
© 2001–2020 Python Software Foundation
Licensed under the PSF License.
https://docs.python.org/2.7/library/fpformat.html