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d Z d Z d S( s8 General floating point formatting functions.
Functions:
fix(x, digits_behind)
sci(x, digits_behind)
Each takes a number or a string and a number of digits as arguments.
Parameters:
x: number to be formatted; or a string resembling a number
digits_behind: number of digits behind the decimal point
i’’’’( t warnpy3ks2 the fpformat module has been removed in Python 3.0t
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NotANumbers+ ^([-+]?)(\d*)((?:\.\d*)?)(([eE][-+]?\d+)?)$c B s e Z RS( ( t __name__t
__module__( ( ( s$ /usr/local/lib/python2.7/fpformat.pyR s s fpformat.NotANumberc C s± t j | } | d k r' t | n | j d d d d \ } } } } | j d } | d k ro d } n | r | d } n | r t | d } n d } | | | | f S(
sÅ Return (sign, intpart, fraction, expo) or raise an exception:
sign is '+' or '-'
intpart is 0 or more digits beginning with a nonzero
fraction is 0 or more digits
expo is an integeri i i i t 0t +t i N( t decodert matcht NoneR t groupt lstript int( t st rest signt intpartt fractiont exppartt expo( ( s$ /usr/local/lib/python2.7/fpformat.pyt extract# s $
c C s¶ | d k rU t | } | | | | | } } | | k r¬ | d | | } q¬ nW | d k r¬ t | } | | | | | } } | | k r¬ d | | | } q¬ n | | f S( s5 Remove the exponent by changing intpart and fraction.i R ( t len( R R R t ft i( ( s$ /usr/local/lib/python2.7/fpformat.pyt unexpo3 s
c C s[ t | } | | k r. | | d | | f St | } | | d k rY d | d f S| | } | | | } | d k r&| | d } xH | d k r» | | d k r® Pn | d } q Wd | } | d } d } | | t t | | d d t | | d } | | | | } } n | d k r@| | | f S| | d | d f Sd S( s* Round or extend the fraction to size digs.R i R t 5i t 9N( R t chrt ord( R R t digsR R t totalt nextdigitt n( ( s$ /usr/local/lib/python2.7/fpformat.pyt roundfracA s,
8 c C sģ t | t d k r' t | } n y t | \ } } } } Wn t k
rW | SXt | | | \ } } t | | | \ } } x$ | r® | d d k r® | d } q W| d k rÄ d } n | d k rą | | d | S| | Sd S( s Format x as [-]ddd.ddd with 'digs' digits after the point
and at least one digit before.
If digs <= 0, the point is suppressed.R i R i t .N( t typet reprR R R R$ ( t xR R R R R ( ( s$ /usr/local/lib/python2.7/fpformat.pyR [ s
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d | } | d
| S( s„ Format x as [-]d.dddE[+-]ddd with 'digs' digits after the point
and exactly one digit before.
If digs is <= 0, one digit is kept and the point is suppressed.R i R i i’’’’R% i t -R t e( R& R' R R t maxR$ t abs( R( R R R R R R R* ( ( s$ /usr/local/lib/python2.7/fpformat.pyR k s6
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rU n Xd S( s Interactive test run.s Enter (x, digs): N( t inputR R t EOFErrort KeyboardInterrupt( R( R ( ( s$ /usr/local/lib/python2.7/fpformat.pyt test s '( t __doc__t warningsR t ret __all__t compileR
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ValueErrorR t TypeErrorR R R$ R R R0 ( ( ( s$ /usr/local/lib/python2.7/fpformat.pyt <module> s
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