Drop support for Windows 2000; allow any XP API (but not Vista+).

Drop SDK version configuration for Tk compilation, to not bind it to W2k
anymore. Binding it to XP would conflict with Tk's own binding of tkMenu to W2k.

Misc/NEWS

@@ -746,6 +746,8 @@ Tests
 Build
 -----
 
+- Drop support for Windows 2000.
+
 - Issue #17029: Let h2py search the multiarch system include directory.
 
 - Issue #16953: Fix socket module compilation on platforms with

PC/pyconfig.h

@@ -156,15 +156,9 @@ WIN32 is still required for the locale module.
 #endif /* MS_WIN64 */
 
 /* set the version macros for the windows headers */
-#ifdef MS_WINX64
-/* 64 bit only runs on XP or greater */
+/* Python 3.4+ requires Windows XP or greater */
 #define Py_WINVER 0x0501 /* _WIN32_WINNT_WINXP */
 #define Py_NTDDI NTDDI_WINXP
-#else
-/* Python 2.6+ requires Windows 2000 or greater */
-#define Py_WINVER 0x0500 /* _WIN32_WINNT_WIN2K */
-#define Py_NTDDI NTDDI_WIN2KSP4
-#endif
 
 /* We only set these values when building Python - we don't want to force
    these values on extensions, as that will affect the prototypes and

PCbuild/build_tkinter.py

@@ -16,11 +16,7 @@ TK = "tk8.5.11"
 TIX = "tix-8.4.3.x"
 
 ROOT = os.path.abspath(os.path.join(here, par, par))
-# Windows 2000 compatibility: WINVER 0x0500
-# http://msdn2.microsoft.com/en-us/library/aa383745.aspx
-NMAKE = ('nmake /nologo /f %s '
-    'COMPILERFLAGS=\"-DWINVER=0x0500 -D_WIN32_WINNT=0x0500 -DNTDDI_VERSION=NTDDI_WIN2KSP4\" '
-    '%s %s')
+NMAKE = ('nmake /nologo /f %s %s %s')
 
 def nmake(makefile, command="", **kw):
     defines = ' '.join(k+'='+str(v) for k, v in kw.items())

Python/random.c

@@ -12,13 +12,6 @@ static int _Py_HashSecret_Initialized = 0;
 #endif
 
 #ifdef MS_WINDOWS
-typedef BOOL (WINAPI *CRYPTACQUIRECONTEXTA)(HCRYPTPROV *phProv,\
-              LPCSTR pszContainer, LPCSTR pszProvider, DWORD dwProvType,\
-              DWORD dwFlags );
-typedef BOOL (WINAPI *CRYPTGENRANDOM)(HCRYPTPROV hProv, DWORD dwLen,\
-              BYTE *pbBuffer );
-
-static CRYPTGENRANDOM pCryptGenRandom = NULL;
 /* This handle is never explicitly released. Instead, the operating
    system will release it when the process terminates. */
 static HCRYPTPROV hCryptProv = 0;
@@ -26,29 +19,9 @@ static HCRYPTPROV hCryptProv = 0;
 static int
 win32_urandom_init(int raise)
 {
-    HINSTANCE hAdvAPI32 = NULL;
-    CRYPTACQUIRECONTEXTA pCryptAcquireContext = NULL;
-
-    /* Obtain handle to the DLL containing CryptoAPI. This should not fail. */
-    hAdvAPI32 = GetModuleHandle("advapi32.dll");
-    if(hAdvAPI32 == NULL)
-        goto error;
-
-    /* Obtain pointers to the CryptoAPI functions. This will fail on some early
-       versions of Win95. */
-    pCryptAcquireContext = (CRYPTACQUIRECONTEXTA)GetProcAddress(
-                               hAdvAPI32, "CryptAcquireContextA");
-    if (pCryptAcquireContext == NULL)
-        goto error;
-
-    pCryptGenRandom = (CRYPTGENRANDOM)GetProcAddress(hAdvAPI32,
-                                                     "CryptGenRandom");
-    if (pCryptGenRandom == NULL)
-        goto error;
-
     /* Acquire context */
-    if (! pCryptAcquireContext(&hCryptProv, NULL, NULL,
-                               PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
+    if (!CryptAcquireContext(&hCryptProv, NULL, NULL,
+                             PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
         goto error;
 
     return 0;
@@ -77,7 +50,7 @@ win32_urandom(unsigned char *buffer, Py_ssize_t size, int raise)
     while (size > 0)
     {
         chunk = size > INT_MAX ? INT_MAX : size;
-        if (!pCryptGenRandom(hCryptProv, chunk, buffer))
+        if (!CryptGenRandom(hCryptProv, chunk, buffer))
         {
             /* CryptGenRandom() failed */
             if (raise)

Tools/buildbot/external-amd64.bat

@@ -6,16 +6,16 @@ call "%VS100COMNTOOLS%\..\..\VC\vcvarsall.bat" x86_amd64
 
 if not exist tcltk64\bin\tcl85g.dll (
     cd tcl-8.5.11.0\win
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 clean all
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 install
+    nmake -f makefile.vc DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 clean all
+    nmake -f makefile.vc DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 install
     cd ..\..
 )
 
 if not exist tcltk64\bin\tk85g.dll (
     cd tk-8.5.11.0\win    
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 clean
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 all
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 install
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 clean
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 all
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 install
     cd ..\..
 )
 

Tools/buildbot/external.bat

@@ -7,15 +7,15 @@ call "%VS100COMNTOOLS%\vsvars32.bat"
 if not exist tcltk\bin\tcl85g.dll (
     @rem all and install need to be separate invocations, otherwise nmakehlp is not found on install
     cd tcl-8.5.11.0\win
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 INSTALLDIR=..\..\tcltk clean all 
+    nmake -f makefile.vc DEBUG=1 INSTALLDIR=..\..\tcltk clean all 
     nmake -f makefile.vc DEBUG=1 INSTALLDIR=..\..\tcltk install
     cd ..\..
 )
 
 if not exist tcltk\bin\tk85g.dll (
     cd tk-8.5.11.0\win
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 clean
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 all
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 install
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 clean
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 all
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 install
     cd ..\..
 )