[Jython-users] File write and read

[Lauri L. <pu...@su...>]

Hi,

I just noticed this, when I have this kind of code:
---
def copyFile(filename):
    bi = open(filename)
    bo = open(filename+'.copy', 'w')
    b = 1000000
    while 1:
        l = bi.read(b)
        if len(l) == 0:
            break
        bo.write(l)
    bo.close()
    bi.close()
    return 1
           
i = raw_input("Give file:")
copyFile(i)
---
and e.g. copy mp3 file with it the .copy mp3 file is somehow mixed and 
not working as it should, but when I run this with plain python it works 
just as it should. How to fix or workaround this? Is thus known bug?

I have tried to make the same using java's FileInputStream and 
FileOutputStream but then the performance is then very bad (about 
500kB/s). Is that also known issue?

Sincerely,
Lauri Lehtinen