The statvfs module defines constants so interpreting the result
if os.statvfs(), which returns a tuple, can be made without
remembering ``magic numbers.''  Each of the constants defined in this
module is the index of the entry in the tuple returned by
os.statvfs() that contains the specified information.
- F_BSIZE
 - 
Preferred file system block size.
 
- F_FRSIZE
 - 
Fundamental file system block size.
 
- F_BLOCKS
 - 
Total number of blocks in the filesystem.
 
- F_BFREE
 - 
Total number of free blocks.
 
- F_BAVAIL
 - 
Free blocks available to non-super user.
 
- F_FILES
 - 
Total number of file nodes.
 
- F_FFREE
 - 
Total number of free file nodes.
 
- F_FAVAIL
 - 
Free nodes available to non-super user.
 
- F_FLAG
 - 
Flags. System dependent: see statvfs() man page.
 
- F_NAMEMAX
 - 
Maximum file name length.
 
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