try to use the same str object for all code filenames when compiling or unmarshalling (#12190)
This should reduce memory usage.
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
index 58ef297..c5f9189 100644
--- a/Lib/test/test_compile.py
+++ b/Lib/test/test_compile.py
@@ -1,6 +1,7 @@
import unittest
import sys
import _ast
+import types
from test import support
class TestSpecifics(unittest.TestCase):
@@ -433,6 +434,14 @@
ast.body = [_ast.BoolOp()]
self.assertRaises(TypeError, compile, ast, '<ast>', 'exec')
+ @support.cpython_only
+ def test_same_filename_used(self):
+ s = """def f(): pass\ndef g(): pass"""
+ c = compile(s, "myfile", "exec")
+ for obj in c.co_consts:
+ if isinstance(obj, types.CodeType):
+ self.assertIs(obj.co_filename, c.co_filename)
+
def test_main():
support.run_unittest(TestSpecifics)