Constants for interpreting the results of os.statvfs() and os.fstatvfs().

Data
		F_BAVAIL = 4 F_BFREE = 3 F_BLOCKS = 2 F_BSIZE = 0 F_FAVAIL = 7 F_FFREE = 6 F_FILES = 5 F_FLAG = 8 F_FRSIZE = 1 F_NAMEMAX = 9