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give a py3k warning when 'nonlocal' is used as a variable name

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This commit is contained in:
Benjamin Peterson 2008-10-25 02:53:28 +00:00
parent c756dcdd60
commit 399b1fe8df
3 changed files with 34 additions and 44 deletions
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64
Lib/test/test_py3kwarn.py
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@ -28,53 +28,35 @@ class TestPy3KWarnings(unittest.TestCase):
exec "`2`" in {}
self.assertWarning(None, w, expected)
def test_bool_assign(self):
def test_forbidden_names(self):
# So we don't screw up our globals
def safe_exec(expr):
def f(**kwargs): pass
exec expr in {'f' : f}
expected = "assignment to True or False is forbidden in 3.x"
tests = [("True", "assignment to True or False is forbidden in 3.x"),
("False", "assignment to True or False is forbidden in 3.x"),
("nonlocal", "nonlocal is a keyword in 3.x")]
with check_warnings() as w:
safe_exec("True = False")
self.assertWarning(None, w, expected)
w.reset()
safe_exec("False = True")
self.assertWarning(None, w, expected)
w.reset()
try:
safe_exec("obj.False = True")
except NameError: pass
self.assertWarning(None, w, expected)
w.reset()
try:
safe_exec("obj.True = False")
except NameError: pass
self.assertWarning(None, w, expected)
w.reset()
safe_exec("def False(): pass")
self.assertWarning(None, w, expected)
w.reset()
safe_exec("def True(): pass")
self.assertWarning(None, w, expected)
w.reset()
safe_exec("class False: pass")
self.assertWarning(None, w, expected)
w.reset()
safe_exec("class True: pass")
self.assertWarning(None, w, expected)
w.reset()
safe_exec("def f(True=43): pass")
self.assertWarning(None, w, expected)
w.reset()
safe_exec("def f(False=None): pass")
self.assertWarning(None, w, expected)
w.reset()
safe_exec("f(False=True)")
self.assertWarning(None, w, expected)
w.reset()
safe_exec("f(True=1)")
self.assertWarning(None, w, expected)
for keyword, expected in tests:
safe_exec("{0} = False".format(keyword))
self.assertWarning(None, w, expected)
w.reset()
try:
safe_exec("obj.{0} = True".format(keyword))
except NameError:
pass
self.assertWarning(None, w, expected)
w.reset()
safe_exec("def {0}(): pass".format(keyword))
self.assertWarning(None, w, expected)
w.reset()
safe_exec("class {0}: pass".format(keyword))
self.assertWarning(None, w, expected)
w.reset()
safe_exec("def f({0}=43): pass".format(keyword))
self.assertWarning(None, w, expected)
w.reset()
def test_type_inequality_comparisons(self):