def find_reg_vs_vers(self):
"""
Find Microsoft Visual Studio versions available in registry.
Return
------
list of float
Versions
"""
ms = self.ri.microsoft
vckeys = (self.ri.vc, self.ri.vc_for_python, self.ri.vs)
vs_vers = []
for hkey in self.ri.HKEYS:
for key in vckeys:
try:
bkey = winreg.OpenKey(hkey, ms(key), 0, winreg.KEY_READ)
except (OSError, IOError):
continue
subkeys, values, _ = winreg.QueryInfoKey(bkey)
for i in range(values):
try:
ver = float(winreg.EnumValue(bkey, i)[0])
if ver not in vs_vers:
vs_vers.append(ver)
except ValueError:
pass
for i in range(subkeys):
try:
ver = float(winreg.EnumKey(bkey, i))
if ver not in vs_vers:
vs_vers.append(ver)
except ValueError:
pass
return sorted(vs_vers)
def find_available_vc_vers(self):
"""
Find all available Microsoft Visual C++ versions.
"""
vckeys = (self.ri.vc, self.ri.vc_for_python)
vc_vers = []
for hkey in self.ri.HKEYS:
for key in vckeys:
try:
bkey = winreg.OpenKey(hkey, key, 0, winreg.KEY_READ)
except IOError:
continue
subkeys, values, _ = winreg.QueryInfoKey(bkey)
for i in range(values):
try:
ver = float(winreg.EnumValue(bkey, i)[0])
if ver not in vc_vers:
vc_vers.append(ver)
except ValueError:
pass
for i in range(subkeys):
try:
ver = float(winreg.EnumKey(bkey, i))
if ver not in vc_vers:
vc_vers.append(ver)
except ValueError:
pass
return sorted(vc_vers)
def _msvc14_find_vc2015():
"""Python 3.8 "distutils/_msvccompiler.py" backport"""
try:
key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE,
r"Software\Microsoft\VisualStudio\SxS\VC7", 0,
winreg.KEY_READ | winreg.KEY_WOW64_32KEY)
except OSError:
return None, None
best_version = 0
best_dir = None
with key:
for i in itertools.count():
try:
v, vc_dir, vt = winreg.EnumValue(key, i)
except OSError:
break
if v and vt == winreg.REG_SZ and isdir(vc_dir):
try:
version = int(float(v))
except (ValueError, TypeError):
continue
if version >= 14 and version > best_version:
best_version, best_dir = version, vc_dir
return best_version, best_dir
