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bpo-17735: inspect.findsource now raises OSError when co_lineno is out of range (GH-23633)

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This can happen when a file was edited after it was imported.
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Irit Katriel 2020-12-04 21:22:03 +00:00 • committed by GitHub
parent 8d4f57dbd1
commit 2e0760bb2e
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3 changed files with 21 additions and 1 deletions
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11
Lib/test/test_inspect.py
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@ -712,6 +712,17 @@ class TestBuggyCases(GetSourceBase):
self.assertRaises(IOError, inspect.findsource, co)
self.assertRaises(IOError, inspect.getsource, co)
def test_findsource_with_out_of_bounds_lineno(self):
mod_len = len(inspect.getsource(mod))
src = '\n' * 2* mod_len + "def f(): pass"
co = compile(src, mod.__file__, "exec")
g, l = {}, {}
eval(co, g, l)
func = l['f']
self.assertEqual(func.__code__.co_firstlineno, 1+2*mod_len)
with self.assertRaisesRegex(IOError, "lineno is out of bounds"):
inspect.findsource(func)
def test_getsource_on_method(self):
self.assertSourceEqual(mod2.ClassWithMethod.method, 118, 119)