Fail instead

Author: zooba

Lib/compileall.py

@@ -166,13 +166,12 @@ def compile_file(fullname, ddir=None, force=False, rx=None, quiet=0,
     name = os.path.basename(fullname)
 
     # Without a cache_tag, we can only create legacy .pyc files. None of our
-    # callers seem to expect this, so the best we can do is silently succeed
-    # without creating anything.
+    # callers seem to expect this, so the best we can do is fail without raising
     if not legacy and sys.implementation.cache_tag is None:
         if not quiet:
             print("No cache tag is available to generate .pyc path for {!r}"
                     .format(fullname))
-        return True
+        return False
 
     dfile = None