os.py revision 7a461e5aaf011243d9ac2658e4172e316b031eb9 
1# os.py -- either mac or posix depending on what system we're on.
2
3# This exports:
4# - all functions from either posix or mac, e.g., os.unlink, os.stat, etc.
5# - os.path is either module posixpath or macpath
6# - os.name is either 'posix' or 'mac'
7# - os.curdir is a string representing the current directory ('.' or ':')
8# - os.pardir is a string representing the parent directory ('..' or '::')
9# - os.sep is the (or a most common) pathname separator ('/' or ':')
10
11# Programs that import and use 'os' stand a better chance of being
12# portable between different platforms.  Of course, they must then
13# only use functions that are defined by all platforms (e.g., unlink
14# and opendir), and leave all pathname manipulation to os.path
15# (e.g., split and join).
16
17# XXX This will need to distinguish between real posix and MS-DOS emulation
18
19try:
20	from posix import *
21	from posix import _exit
22	name = 'posix'
23	curdir = '.'
24	pardir = '..'
25	sep = '/'
26	import posixpath
27	path = posixpath
28	del posixpath
29except ImportError:
30	from mac import *
31	name = 'mac'
32	curdir = ':'
33	pardir = '::'
34	sep = ':'
35	import macpath
36	path = macpath
37	del macpath
38