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# -*- test-case-name: twisted.python.test.test_runtime -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
# System imports
import os
import sys
import time
import imp
def shortPythonVersion():
"""
Returns the Python version as a dot-separated string.
"""
return "%s.%s.%s" % sys.version_info[:3]
knownPlatforms = {
'nt': 'win32',
'ce': 'win32',
'posix': 'posix',
'java': 'java',
'org.python.modules.os': 'java',
}
_timeFunctions = {
#'win32': time.clock,
'win32': time.time,
}
class Platform:
"""Gives us information about the platform we're running on"""
type = knownPlatforms.get(os.name)
seconds = staticmethod(_timeFunctions.get(type, time.time))
_platform = sys.platform
def __init__(self, name=None, platform=None):
if name is not None:
self.type = knownPlatforms.get(name)
self.seconds = _timeFunctions.get(self.type, time.time)
if platform is not None:
self._platform = platform
def isKnown(self):
"""Do we know about this platform?"""
return self.type != None
def getType(self):
"""Return 'posix', 'win32' or 'java'"""
return self.type
def isMacOSX(self):
"""Check if current platform is Mac OS X.
@return: C{True} if the current platform has been detected as OS X
@rtype: C{bool}
"""
return self._platform == "darwin"
def isWinNT(self):
"""Are we running in Windows NT?"""
if self.getType() == 'win32':
import _winreg
try:
k = _winreg.OpenKeyEx(
_winreg.HKEY_LOCAL_MACHINE,
r'Software\Microsoft\Windows NT\CurrentVersion')
_winreg.QueryValueEx(k, 'SystemRoot')
return 1
except WindowsError:
return 0
# not windows NT
return 0
def isWindows(self):
return self.getType() == 'win32'
def isVista(self):
"""
Check if current platform is Windows Vista or Windows Server 2008.
@return: C{True} if the current platform has been detected as Vista
@rtype: C{bool}
"""
if getattr(sys, "getwindowsversion", None) is not None:
return sys.getwindowsversion()[0] == 6
else:
return False
def isLinux(self):
"""
Check if current platform is Linux.
@return: C{True} if the current platform has been detected as Linux.
@rtype: C{bool}
"""
return self._platform.startswith("linux")
def supportsThreads(self):
"""Can threads be created?
"""
try:
return imp.find_module('thread')[0] is None
except ImportError:
return False
def supportsINotify(self):
"""
Return C{True} if we can use the inotify API on this platform.
@since: 10.1
"""
try:
from twisted.python._inotify import INotifyError, init
except ImportError:
return False
try:
os.close(init())
except INotifyError:
return False
return True
platform = Platform()
platformType = platform.getType()
seconds = platform.seconds
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