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# Module 'stat'
#
# Defines constants and functions for interpreting stat/lstat struct
# as returned by os.stat() and os.lstat() (if it exists).
#
# Suggested usage: from stat import *
#
# XXX Strictly spoken, this module may have to be adapted for each POSIX
# implementation; in practice, however, the numeric constants used by
# stat() are almost universal (even for stat() emulations on non-UNIX
# systems like Macintosh or MS-DOS).
# Indices for stat struct members in tuple returned by os.stat()
ST_MODE = 0
ST_INO = 1
ST_DEV = 2
ST_NLINK = 3
ST_UID = 4
ST_GID = 5
ST_SIZE = 6
ST_ATIME = 7
ST_MTIME = 8
ST_CTIME = 9
# Extract bits from the mode
def S_IMODE(mode):
return mode & 07777
def S_IFMT(mode):
return mode & ~07777
# Constants used as S_IFMT() for various file types
# (not all are implemented on all systems)
S_IFDIR = 0040000
S_IFCHR = 0020000
S_IFBLK = 0060000
S_IFREG = 0100000
S_IFIFO = 0010000
S_IFLNK = 0120000
S_IFSOCK = 0140000
# Functions to test for each file type
def S_ISDIR(mode):
return S_IFMT(mode) == S_IFDIR
def S_ISCHR(mode):
return S_IFMT(mode) == S_IFCHR
def S_ISBLK(mode):
return S_IFMT(mode) == S_IFBLK
def S_ISREG(mode):
return S_IFMT(mode) == S_IFREG
def S_ISFIFO(mode):
return S_IFMT(mode) == S_IFIFO
def S_ISLNK(mode):
return S_IFMT(mode) == S_IFLNK
def S_ISSOCK(mode):
return S_IFMT(mode) == S_IFSOCK
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