Python mmap 'Permission denied' on Linux

Question

I have a really large file I\'m trying to open with mmap and its giving me permission denied. I\'ve tried different flags and modes to the os.open but its just not

Answer 1

Try setting the file mode to r+. That worked for me on Linux:

mfd = os.open('BigFile', "r+")

Then this worked for me as normal:

mfile = mmap.mmap(mfd, 0)