Hi,
How do i proceed if i am not sure about the number of characters in the fist two lines and want to write in the third line.is there a way to skip two lines and write on the third??
Also could anyone explain why the readline() did not work. according to what i understand it should.
shitiz
bob <[EMAIL PROTECTED]> wrote:
At 01:11 AM 9/24/2005, Shitiz Bansal wrote:
>Hi,
>I want to update a textfile using the r+ file mode.
>contents of file:
>
>abcd
>efgh
>ijkl
>mnop
>qrst
>uvwx
>yx12
>
>my scripts is:
>
>file1=open("aa.txt",'r+')
>>Instead of readline, use skip to position the file to where you want to
>>overwrite it.
>>file1.seek(10)
>file1.readline()
>file1.readline()
>file1.write("1234\n")
>file1.close()
>
>This should replace the third line with 1234.
>However it does nothing.
>
>Moreover the script:
>
>file1=open("aa.txt",'r+')
>file1.write("1234\n")
>file1.close()
>
>does replace the first line with 1234.
>
>could anyone explain what is happening?
>
>shitiz
>
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