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import os
if os.name == 'nt':
import sys
if sys.version_info < (3,):
import _winreg as winreg
else:
import winreg
def _reg_open_key(key, subkey):
try:
return winreg.OpenKey(key, subkey)
except (WindowsError, EnvironmentError) as e:
import platform
if platform.architecture()[0] == '32bit':
bitness_sam = winreg.KEY_WOW64_64KEY
else:
bitness_sam = winreg.KEY_WOW64_32KEY
return winreg.OpenKey(key, subkey, 0, winreg.KEY_READ | bitness_sam)
def _find_mono_in_reg(subkey):
try:
with _reg_open_key(winreg.HKEY_LOCAL_MACHINE, subkey) as hKey:
value, regtype = winreg.QueryValueEx(hKey, 'SdkInstallRoot')
return value
except (WindowsError, EnvironmentError) as e:
return None
def _find_mono_in_reg_old(subkey):
try:
with _reg_open_key(winreg.HKEY_LOCAL_MACHINE, subkey) as hKey:
default_clr, regtype = winreg.QueryValueEx(hKey, 'DefaultCLR')
if default_clr:
return _find_mono_in_reg(subkey + '\\' + default_clr)
return None
except (WindowsError, EnvironmentError):
return None
def find_mono_root_dir():
dir = _find_mono_in_reg(r'SOFTWARE\Mono')
if dir:
return dir
dir = _find_mono_in_reg_old(r'SOFTWARE\Novell\Mono')
if dir:
return dir
return None
def find_msbuild_tools_path_reg():
try:
with _reg_open_key(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\Microsoft\MSBuild\ToolsVersions\4.0') as hKey:
value, regtype = winreg.QueryValueEx(hKey, 'MSBuildToolsPath')
return value
except (WindowsError, EnvironmentError) as e:
return None
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