write() at beginning of file?

Question

I\'m doing it like this now, but I want it to write at the beginning of the file instead.

f = open(\'out.txt\', \'a\') # or \'w\'?
f.write(\"string 1\")
f.wr         


        

Answer 1

You could throw a f.seek(0) between each write (or write a wrapper function that does it for you), but there's no simple built in way of doing this.

EDIT: this doesn't work, even if you put a f.flush() in there it will continually overwrite. You may just have to queue up the writes and reverse the order yourself.

So instead of

f.write("string 1")
f.write("string 2")
f.write("string 3")

Maybe do something like:

writeList = []
writeList.append("string 1\n")
writeList.append("string 2\n")
writeList.append("string 3\n")
writeList.reverse()
f.writelines(writeList)