Just using python script running you can find easy
I know you want to use very fast key generate like bitcrack
not yet have someone help to modify to save to file
i have not mutch knowledge about python
It really doesn't matter. You would have to have tens of thousands of GPUs or CPUs just to get through that range. Next problem is I/O...writing to disk/file. You could have a GPU that searches 1000 MKey/s but when you use it to write every key to file it will drop to 0 and you will be lucky to write maybe 200k in a minute. so divide 2^160 by 200k = 7.30750818665451459101842416358141509827966271488e+42 minutes with one GPU.
Let's say you got lucky and 1,000,000 people gifted you a GPU. So now you have 1 million GPUs. Now divide 2^160 / 200k*1000000 = 7.30750818665451459101842416358141509827966271488e+36 minutes. That's a whole lot of years, right?