| Server IP : 188.40.95.74 / Your IP : 216.73.216.205 Web Server : Apache System : Linux cp01.striminghost.net 3.10.0-1160.119.1.el7.tuxcare.els13.x86_64 #1 SMP Fri Nov 22 06:29:45 UTC 2024 x86_64 User : vlasotin ( 1054) PHP Version : 5.6.40 Disable Function : NONE MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /usr/share/doc/python-docs-2.7.5/html/_sources/library/ |
Upload File : |
:mod:`fpformat` --- Floating point conversions
==============================================
.. module:: fpformat
:synopsis: General floating point formatting functions.
:deprecated:
.. deprecated:: 2.6
The :mod:`fpformat` module has been removed in Python 3.
.. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il>
The :mod:`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 :ref:`string-formatting` section.
The :mod:`fpformat` module defines the following functions and an exception:
.. function:: 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.
.. function:: 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:: NotANumber
Exception raised when a string passed to :func:`fix` or :func:`sci` as the *x*
parameter does not look like a number. This is a subclass of :exc:`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'