From 4114a4afecdf1753b1140059d71bb03b4cec3ef1 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Thu, 18 Oct 2001 18:49:37 +0000
Subject: [PATCH] Fix the frozen bytecode for __hello__ (betcha didn't know
 that existed :-).

Add a test that prevents the __hello__ bytecode from going stale
unnoticed again.

The test also tests the loophole noted in SF bug #404545.  This test
will fail right now; I'll check in the fix in a minute.
---
 Lib/__phello__.foo.py       |  1 +
 Lib/test/output/test_frozen |  4 ++++
 Lib/test/test_frozen.py     | 26 ++++++++++++++++++++++++++
 Python/frozen.c             | 17 ++++++++++++-----
 4 files changed, 43 insertions(+), 5 deletions(-)
 create mode 100644 Lib/__phello__.foo.py
 create mode 100644 Lib/test/output/test_frozen
 create mode 100644 Lib/test/test_frozen.py

diff --git a/Lib/__phello__.foo.py b/Lib/__phello__.foo.py
new file mode 100644
index 00000000000..8e8623ee1da
--- /dev/null
+++ b/Lib/__phello__.foo.py
@@ -0,0 +1 @@
+# This file exists as a helper for the test.test_frozen module.
diff --git a/Lib/test/output/test_frozen b/Lib/test/output/test_frozen
new file mode 100644
index 00000000000..76f17dbfdbe
--- /dev/null
+++ b/Lib/test/output/test_frozen
@@ -0,0 +1,4 @@
+test_frozen
+Hello world...
+Hello world...
+Hello world...
diff --git a/Lib/test/test_frozen.py b/Lib/test/test_frozen.py
new file mode 100644
index 00000000000..3aa91ab9a06
--- /dev/null
+++ b/Lib/test/test_frozen.py
@@ -0,0 +1,26 @@
+# Test the frozen module defined in frozen.c.
+
+from test_support import TestFailed
+import sys, os
+
+try:
+    import __hello__
+except ImportError, x:
+    raise TestFailed, "import __hello__ failed:", x
+
+try:
+    import __phello__
+except ImportError, x:
+    raise TestFailed, "import __phello__ failed:", x
+
+try:
+    import __phello__.spam
+except ImportError, x:
+    raise TestFailed, "import __phello__.spam failed:", x
+
+try:
+    import __phello__.foo
+except ImportError:
+    pass
+else:
+    raise TestFailed, "import __phello__.foo should have failed"
diff --git a/Python/frozen.c b/Python/frozen.c
index 21a0b525498..e40d5d94c9f 100644
--- a/Python/frozen.c
+++ b/Python/frozen.c
@@ -7,21 +7,28 @@
    define a single frozen module, __hello__.  Loading it will print
    some famous words... */
 
+/* To regenerate this data after the bytecode or marshal format has changed,
+   go to ../Tools/freeze/ and freeze the hello.py file; then copy and paste
+   the appropriate bytes from M___main__.c. */
+
 static unsigned char M___hello__[] = {
 	99,0,0,0,0,1,0,0,0,115,15,0,0,0,127,0,
 	0,127,1,0,100,0,0,71,72,100,1,0,83,40,2,0,
 	0,0,115,14,0,0,0,72,101,108,108,111,32,119,111,114,
 	108,100,46,46,46,78,40,0,0,0,0,40,0,0,0,0,
-	115,8,0,0,0,104,101,108,108,111,46,112,121,115,1,0,
-	0,0,63,1,0,115,0,0,0,0,
+	40,0,0,0,0,40,0,0,0,0,115,8,0,0,0,104,
+	101,108,108,111,46,112,121,115,1,0,0,0,63,1,0,115,
+	0,0,0,0,
 };
 
+#define SIZE sizeof(M___hello__)
+
 static struct _frozen _PyImport_FrozenModules[] = {
 	/* Test module */
-	{"__hello__", M___hello__, 90},
+	{"__hello__", M___hello__, SIZE},
 	/* Test package (negative size indicates package-ness) */
-	{"__phello__", M___hello__, -90},
-	{"__phello__.spam", M___hello__, 90},
+	{"__phello__", M___hello__, -SIZE},
+	{"__phello__.spam", M___hello__, SIZE},
 	{0, 0, 0} /* sentinel */
 };