[Tutor] How to write strings with new line character in a file

[Asrarahmed Kadri]

Here is the complete code:
fd is the file handle.

import sys

 def check_dup(fd1):
    print fd1
    fd1.seek(0,0)
    done = 0
    list1 = []
    while not done:
        x = fd1.readline()
        if x == "":
            done = 1
        else:
            list1.append(x)
    return list1


fname = raw_input("Enter the file name to write data to:\t")

fd = open(fname,'a+')
print fd
done = 0

while not done:
    str = raw_input("Enter login name:\t to quit type 'q'")

    if str == 'q':
        done = 1
    else:
        flag = check_dup(fd)
        print flag
        if str in flag:
            print "Login already exists.!!"
        else:
            fd.seek(0,2)
            fd.write(str + '\n')









On 10/13/06, Bob Gailer <bgailer at alum.rpi.edu> wrote:
>
> Asrarahmed Kadri wrote:
> > Folks,
> >
> > I am trying to enter names in a file; each on a new line with this
> > code, but not working:
> >
> > done = 0
> > *while not done:
> >     str = raw_input("Enter login name:\t to quit type 'q': ")
> >     if str == 'q':
> >         done = 1
> >     else:  *
> > *       str = str + '\n'*
> > *       fd.write(str)
> > *
> No can help without seeing the code that creates fd. Please post that.
> > The traceback is as under:
> >
> > Traceback (most recent call last):
> >   File "scrap.py", line 38, in ?
> >     fd.write(str)
> > IOError: (0, 'Error')
> >
> > Please help to rectify this error...
> > --
> > To HIM you shall return.
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Tutor maillist  -  Tutor at python.org
> > http://mail.python.org/mailman/listinfo/tutor
> >
>
>
> --
> Bob Gailer
> 510-978-4454
>
>


-- 
To HIM you shall return.
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