Improve local generic parameter suggestions.

[rust.git] / x.py

diff --git a/x.py b/x.py
index 4f64ea9fae8b8391bd8dd330bb3a74bc0a9d628c..6df4033d55d7273bd064cedbddf4c959ee1dd301 100755 (executable)
--- a/x.py
+++ b/x.py
@@ -1,4 +1,6 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
+# Some systems don't have `python3` in their PATH. This isn't supported by x.py directly;
+# they should use `x` or `x.ps1` instead.
 
 # This file is only a "symlink" to bootstrap.py, all logic should go there.
 
@@ -6,12 +8,11 @@ import os
 import sys
 
 # If this is python2, check if python3 is available and re-execute with that
-# interpreter.
+# interpreter. Only python3 allows downloading CI LLVM.
+#
+# This matters if someone's system `python` is python2.
 if sys.version_info.major < 3:
     try:
-        # On Windows, `py -3` sometimes works.
-        # Try this first, because 'python3' sometimes tries to launch the app
-        # store on Windows
         os.execvp("py", ["py", "-3"] + sys.argv)
     except OSError:
         try: