Question

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reading integers from binary file in python

I’ve read the solution to a similar problem here: convert a string of bytes into an int (python) but I’m not quite sure how to repurpose it for my needs.

I have a .bin file which is just a sequence of bytes. Every set of 4 bytes represents a 32-bit number. I am trying to use the struct module as described in that linked question to convert every set of 4 bytes to an integer and print them to a new file. How can I achieve this?

Thanks for the help.

Answer 1

You might want to read Read ints from file in python
It is even more straightforward from that question.

I have not checked the following code but something along the spirit of

fin = open("hi.bmp", "rb")
out = open("values.txt","rw")
value = struct.unpack('i', fin.read(4))[0]
out.write("%d\n" % value) # just loop over the 2 last lines
out.close()
fin.close()

should do the trick, if you want to record the ints as readable integers in another file.