#11420: merge with 3.2.

Lib/test/test_import.py

@@ -24,6 +24,10 @@ from test.support import (
 from test import script_helper
 
 
+skip_if_dont_write_bytecode = unittest.skipIf(
+        sys.dont_write_bytecode,
+        "test meaningful only when writing bytecode")
+
 def remove_files(name):
     for f in (name + ".py",
               name + ".pyc",
@@ -120,6 +124,7 @@ class ImportTests(unittest.TestCase):
         finally:
             del sys.path[0]
 
+    @skip_if_dont_write_bytecode
     def test_bug7732(self):
         source = TESTFN + '.py'
         os.mkdir(source)
@@ -230,6 +235,7 @@ class ImportTests(unittest.TestCase):
             remove_files(TESTFN)
             unload(TESTFN)
 
+    @skip_if_dont_write_bytecode
     def test_file_to_source(self):
         # check if __file__ points to the source file where available
         source = TESTFN + ".py"
@@ -316,6 +322,7 @@ class ImportTests(unittest.TestCase):
             self.fail("fromlist must allow bogus names")
 
 
+@skip_if_dont_write_bytecode
 class FilePermissionTests(unittest.TestCase):
     # tests for file mode on cached .pyc/.pyo files
 
@@ -642,6 +649,7 @@ class PycacheTests(unittest.TestCase):
         del sys.path[0]
         self._clean()
 
+    @skip_if_dont_write_bytecode
     def test_import_pyc_path(self):
         self.assertFalse(os.path.exists('__pycache__'))
         __import__(TESTFN)
@@ -654,6 +662,7 @@ class PycacheTests(unittest.TestCase):
                          "test meaningful only on posix systems")
     @unittest.skipIf(hasattr(os, 'geteuid') and os.geteuid() == 0,
             "due to varying filesystem permission semantics (issue #11956)")
+    @skip_if_dont_write_bytecode
     def test_unwritable_directory(self):
         # When the umask causes the new __pycache__ directory to be
         # unwritable, the import still succeeds but no .pyc file is written.
@@ -663,6 +672,7 @@ class PycacheTests(unittest.TestCase):
         self.assertFalse(os.path.exists(os.path.join(
             '__pycache__', '{}.{}.pyc'.format(TESTFN, self.tag))))
 
+    @skip_if_dont_write_bytecode
     def test_missing_source(self):
         # With PEP 3147 cache layout, removing the source but leaving the pyc
         # file does not satisfy the import.
@@ -673,6 +683,7 @@ class PycacheTests(unittest.TestCase):
         forget(TESTFN)
         self.assertRaises(ImportError, __import__, TESTFN)
 
+    @skip_if_dont_write_bytecode
     def test_missing_source_legacy(self):
         # Like test_missing_source() except that for backward compatibility,
         # when the pyc file lives where the py file would have been (and named
@@ -694,6 +705,7 @@ class PycacheTests(unittest.TestCase):
         pyc_file = imp.cache_from_source(TESTFN + '.py')
         self.assertEqual(m.__cached__, os.path.join(os.curdir, pyc_file))
 
+    @skip_if_dont_write_bytecode
     def test___cached___legacy_pyc(self):
         # Like test___cached__() except that for backward compatibility,
         # when the pyc file lives where the py file would have been (and named
@@ -709,6 +721,7 @@ class PycacheTests(unittest.TestCase):
         self.assertEqual(m.__cached__,
                          os.path.join(os.curdir, os.path.relpath(pyc_file)))
 
+    @skip_if_dont_write_bytecode
     def test_package___cached__(self):
         # Like test___cached__ but for packages.
         def cleanup():