Prevent issues with rebuilding interpreter on a different drive from the temp folder.

Author: Maxwell175

Lib/rebuildpython.py

@@ -15,6 +15,7 @@
 import sys
 import sysconfig
 import tempfile
+import uuid
 
 MOVEFILE_DELAY_UNTIL_REBOOT = 4
 
@@ -472,8 +473,12 @@ def run_rebuild():
         tmp = tempfile.NamedTemporaryFile(delete=False)
         tmp.close()
         os.unlink(tmp.name)
-        shutil.move(sys.executable, tmp.name)
-        ctypes.windll.kernel32.MoveFileExW(tmp.name, None, MOVEFILE_DELAY_UNTIL_REBOOT)
+        temp_path = tmp.name
+        if os.path.splitdrive(temp_path)[0] == os.path.splitdrive(sys.executable)[0]:
+            shutil.move(sys.executable, temp_path)
+        else:
+            shutil.move(sys.executable, sys.executable + uuid.uuid4().hex + ".old")
+        ctypes.windll.kernel32.MoveFileExW(temp_path, None, MOVEFILE_DELAY_UNTIL_REBOOT)
 
         shutil.move(os.path.join(build_dir, "python.exe"), interpreter_path)
     elif platform.system() == "Linux":