Python 处理文件例程

我现在一个文档  wave.txt， 里面都是浮点数表示的整数，

-1.100000000000000000e+01

-1.100000000000000000e+01

-1.200000000000000000e+01

 1.100000000000000000e+01

-1.200000000000000000e+01

-9.000000000000000000e+00

 9.000000000000000000e+00

-1.200000000000000000e+01

-1.100000000000000000e+01

-1.400000000000000000e+01

 1.400000000000000000e+01

-1.300000000000000000e+01

-1.500000000000000000e+01

想转换成  十六进制补码形式的。放到waveout.txt中

fffffff5

fffffff5

fffffff4

b

fffffff4

fffffff7

9

fffffff4

fffffff5

fffffff2

e

fffffff3

fffffff1

采用下面的文档。。这里文档和程序放到一个文件夹下

import struct,os,re

def float_to_hex():

   main_path=os.path.dirname(__file__)

    main_path =main_path.replace('\\','/')

   fin=main_path+r'/wave.txt'

   fout=main_path+r'/waveout.txt'

    FIN=open(fin,'r')

   FOUT=open(fout,'w')

   

   [FOUT.writelines(str(hex2(int(float(line)))).replace('0x','').replace('L','')+'\n')for line in FIN]    

    FIN.close()

    FOUT.close()

    

def hex2(a):

    return a>0 and hex(a)or hex(a&0xffffffff)

if __name__ == "__main__":

    float_to_hex()