gzip.open() function in python

Question

I am learning ML and I am stuck with this following line of code

can anyone help me yo know what does this line of does

and the parameters required to give for it are??

gzip.open('../data/mnist.pkl.gz', 'rb')

Answer 1

It starts to upload to memory the file you adressed in binary mode(fast way of reading), mostly you have to use rb argument. Next step is modifying this data and writing it back with 'wb' command.