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Issue #15828: Restore support for C extension modules in imp.load_module()

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This commit is contained in:
Nick Coghlan 2012-09-01 00:13:45 +10:00
parent 380c55cc58
commit 91b9f139bc
4 changed files with 35 additions and 21 deletions
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29
Lib/test/test_imp.py
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@ -186,6 +186,35 @@ class ImportTests(unittest.TestCase):
self.assertRaises(SyntaxError,
imp.find_module, "badsyntax_pep3120", [path])
def test_load_from_source(self):
# Verify that the imp module can correctly load and find .py files
# XXX (ncoghlan): It would be nice to use support.CleanImport
# here, but that breaks because the os module registers some
# handlers in copy_reg on import. Since CleanImport doesn't
# revert that registration, the module is left in a broken
# state after reversion. Reinitialising the module contents
# and just reverting os.environ to its previous state is an OK
# workaround
orig_path = os.path
orig_getenv = os.getenv
with support.EnvironmentVarGuard():
x = imp.find_module("os")
self.addCleanup(x[0].close)
new_os = imp.load_module("os", *x)
self.assertIs(os, new_os)
self.assertIs(orig_path, new_os.path)
self.assertIsNot(orig_getenv, new_os.getenv)
@support.cpython_only
def test_issue15828_load_extensions(self):
# Issue 15828 picked up that the adapter between the old imp API
# and importlib couldn't handle C extensions
example = "_heapq"
x = imp.find_module(example)
self.addCleanup(x[0].close)
mod = imp.load_module(example, *x)
self.assertEqual(mod.__name__, example)
def test_load_dynamic_ImportError_path(self):
# Issue #1559549 added `name` and `path` attributes to ImportError
# in order to provide better detail. Issue #10854 implemented those