def mmap_read(f, sz=0, close=True):
 return _mmap_do(f, sz, mmap.MAP_PRIVATE, mmap.PROT_READ, close)

def mmap_read ( f , sz = 0 , close = True ) : return _mmap_do ( f , sz , mmap . MAP_PRIVATE , mmap . PROT_READ , close )
create a read-only memory mapped region on file f .